1naresh2naresh<pre>Array
(
    [urn:ac.highwire.org:guest:identity] => Array
        (
            [runtime-id] => urn:ac.highwire.org:guest:identity
            [type] => guest
            [service-id] => ajnr-ac.highwire.org
            [access-type] => Controlled
            [privilege] => Array
                (
                    [urn:ac.highwire.org:guest:privilege] => Array
                        (
                            [runtime-id] => urn:ac.highwire.org:guest:privilege
                            [type] => privilege-set
                            [privilege-set] => GUEST
                        )

                )

            [credentials] => Array
                (
                    [method] => guest
                )

        )

    [567ba8bf-d0c7-4691-bf51-65072a159076] => Array
        (
            [runtime-id] => 567ba8bf-d0c7-4691-bf51-65072a159076
            [type] => toll-free-key
            [service-id] => ajnr-ac.highwire.org
            [access-type] => Controlled
            [privilege] => Array
                (
                    [d6c27ef5-ba9d-4b48-a2e2-fb0bd0590519] => Array
                        (
                            [runtime-id] => d6c27ef5-ba9d-4b48-a2e2-fb0bd0590519
                            [type] => toll-free-key
                        )

                )

            [credentials] => Array
                (
                    [method] => toll-free-key
                    [value] => tf_ipsecsha;853b1981cf380e61b53fbadf44286d527bf4af73
                )

        )

)
1naresh2naresh<pre>Array
(
    [urn:ac.highwire.org:guest:identity] => Array
        (
            [runtime-id] => urn:ac.highwire.org:guest:identity
            [type] => guest
            [service-id] => ajnr-ac.highwire.org
            [access-type] => FreeToRead
            [privilege] => Array
                (
                    [urn:ac.highwire.org:guest:privilege] => Array
                        (
                            [runtime-id] => urn:ac.highwire.org:guest:privilege
                            [type] => privilege-set
                            [privilege-set] => GUEST
                        )

                )

            [credentials] => Array
                (
                    [method] => guest
                )

        )

    [58e37f85-8daf-413d-a5cd-1665cfea01b6] => Array
        (
            [runtime-id] => 58e37f85-8daf-413d-a5cd-1665cfea01b6
            [type] => toll-free-key
            [service-id] => ajnr-ac.highwire.org
            [access-type] => FreeToRead
            [privilege] => Array
                (
                    [7fee88fe-32be-43d6-95f0-1aca668be1a4] => Array
                        (
                            [runtime-id] => 7fee88fe-32be-43d6-95f0-1aca668be1a4
                            [type] => toll-free-key
                        )

                )

            [credentials] => Array
                (
                    [method] => toll-free-key
                    [value] => tf_ipsecsha;853b1981cf380e61b53fbadf44286d527bf4af73
                )

        )

)
1naresh2naresh<pre>Array
(
    [urn:ac.highwire.org:guest:identity] => Array
        (
            [runtime-id] => urn:ac.highwire.org:guest:identity
            [type] => guest
            [service-id] => ajnr-ac.highwire.org
            [access-type] => FreeToRead
            [privilege] => Array
                (
                    [urn:ac.highwire.org:guest:privilege] => Array
                        (
                            [runtime-id] => urn:ac.highwire.org:guest:privilege
                            [type] => privilege-set
                            [privilege-set] => GUEST
                        )

                )

            [credentials] => Array
                (
                    [method] => guest
                )

        )

    [baae1a97-a0c5-45e8-bb0b-2fb3988954be] => Array
        (
            [runtime-id] => baae1a97-a0c5-45e8-bb0b-2fb3988954be
            [type] => toll-free-key
            [service-id] => ajnr-ac.highwire.org
            [access-type] => FreeToRead
            [privilege] => Array
                (
                    [5725073b-3bdd-44eb-b3d9-df36637d6cc5] => Array
                        (
                            [runtime-id] => 5725073b-3bdd-44eb-b3d9-df36637d6cc5
                            [type] => toll-free-key
                        )

                )

            [credentials] => Array
                (
                    [method] => toll-free-key
                    [value] => tf_ipsecsha;853b1981cf380e61b53fbadf44286d527bf4af73
                )

        )

)
1naresh2naresh<pre>Array
(
    [urn:ac.highwire.org:guest:identity] => Array
        (
            [runtime-id] => urn:ac.highwire.org:guest:identity
            [type] => guest
            [service-id] => ajnr-ac.highwire.org
            [access-type] => Controlled
            [privilege] => Array
                (
                    [urn:ac.highwire.org:guest:privilege] => Array
                        (
                            [runtime-id] => urn:ac.highwire.org:guest:privilege
                            [type] => privilege-set
                            [privilege-set] => GUEST
                        )

                )

            [credentials] => Array
                (
                    [method] => guest
                )

        )

    [567ba8bf-d0c7-4691-bf51-65072a159076] => Array
        (
            [runtime-id] => 567ba8bf-d0c7-4691-bf51-65072a159076
            [type] => toll-free-key
            [service-id] => ajnr-ac.highwire.org
            [access-type] => Controlled
            [privilege] => Array
                (
                    [d6c27ef5-ba9d-4b48-a2e2-fb0bd0590519] => Array
                        (
                            [runtime-id] => d6c27ef5-ba9d-4b48-a2e2-fb0bd0590519
                            [type] => toll-free-key
                        )

                )

            [credentials] => Array
                (
                    [method] => toll-free-key
                    [value] => tf_ipsecsha;853b1981cf380e61b53fbadf44286d527bf4af73
                )

        )

)
1naresh2naresh<pre>Array
(
    [urn:ac.highwire.org:guest:identity] => Array
        (
            [runtime-id] => urn:ac.highwire.org:guest:identity
            [type] => guest
            [service-id] => ajnr-ac.highwire.org
            [access-type] => Controlled
            [privilege] => Array
                (
                    [urn:ac.highwire.org:guest:privilege] => Array
                        (
                            [runtime-id] => urn:ac.highwire.org:guest:privilege
                            [type] => privilege-set
                            [privilege-set] => GUEST
                        )

                )

            [credentials] => Array
                (
                    [method] => guest
                )

        )

    [567ba8bf-d0c7-4691-bf51-65072a159076] => Array
        (
            [runtime-id] => 567ba8bf-d0c7-4691-bf51-65072a159076
            [type] => toll-free-key
            [service-id] => ajnr-ac.highwire.org
            [access-type] => Controlled
            [privilege] => Array
                (
                    [d6c27ef5-ba9d-4b48-a2e2-fb0bd0590519] => Array
                        (
                            [runtime-id] => d6c27ef5-ba9d-4b48-a2e2-fb0bd0590519
                            [type] => toll-free-key
                        )

                )

            [credentials] => Array
                (
                    [method] => toll-free-key
                    [value] => tf_ipsecsha;853b1981cf380e61b53fbadf44286d527bf4af73
                )

        )

)
1naresh2naresh<pre>Array
(
    [urn:ac.highwire.org:guest:identity] => Array
        (
            [runtime-id] => urn:ac.highwire.org:guest:identity
            [type] => guest
            [service-id] => ajnr-ac.highwire.org
            [access-type] => Controlled
            [privilege] => Array
                (
                    [urn:ac.highwire.org:guest:privilege] => Array
                        (
                            [runtime-id] => urn:ac.highwire.org:guest:privilege
                            [type] => privilege-set
                            [privilege-set] => GUEST
                        )

                )

            [credentials] => Array
                (
                    [method] => guest
                )

        )

    [567ba8bf-d0c7-4691-bf51-65072a159076] => Array
        (
            [runtime-id] => 567ba8bf-d0c7-4691-bf51-65072a159076
            [type] => toll-free-key
            [service-id] => ajnr-ac.highwire.org
            [access-type] => Controlled
            [privilege] => Array
                (
                    [d6c27ef5-ba9d-4b48-a2e2-fb0bd0590519] => Array
                        (
                            [runtime-id] => d6c27ef5-ba9d-4b48-a2e2-fb0bd0590519
                            [type] => toll-free-key
                        )

                )

            [credentials] => Array
                (
                    [method] => toll-free-key
                    [value] => tf_ipsecsha;853b1981cf380e61b53fbadf44286d527bf4af73
                )

        )

)
1naresh2naresh<pre>Array
(
    [urn:ac.highwire.org:guest:identity] => Array
        (
            [runtime-id] => urn:ac.highwire.org:guest:identity
            [type] => guest
            [service-id] => ajnr-ac.highwire.org
            [access-type] => Controlled
            [privilege] => Array
                (
                    [urn:ac.highwire.org:guest:privilege] => Array
                        (
                            [runtime-id] => urn:ac.highwire.org:guest:privilege
                            [type] => privilege-set
                            [privilege-set] => GUEST
                        )

                )

            [credentials] => Array
                (
                    [method] => guest
                )

        )

    [567ba8bf-d0c7-4691-bf51-65072a159076] => Array
        (
            [runtime-id] => 567ba8bf-d0c7-4691-bf51-65072a159076
            [type] => toll-free-key
            [service-id] => ajnr-ac.highwire.org
            [access-type] => Controlled
            [privilege] => Array
                (
                    [d6c27ef5-ba9d-4b48-a2e2-fb0bd0590519] => Array
                        (
                            [runtime-id] => d6c27ef5-ba9d-4b48-a2e2-fb0bd0590519
                            [type] => toll-free-key
                        )

                )

            [credentials] => Array
                (
                    [method] => toll-free-key
                    [value] => tf_ipsecsha;853b1981cf380e61b53fbadf44286d527bf4af73
                )

        )

)
1naresh2naresh<pre>Array
(
    [urn:ac.highwire.org:guest:identity] => Array
        (
            [runtime-id] => urn:ac.highwire.org:guest:identity
            [type] => guest
            [service-id] => ajnr-ac.highwire.org
            [access-type] => FreeToRead
            [privilege] => Array
                (
                    [urn:ac.highwire.org:guest:privilege] => Array
                        (
                            [runtime-id] => urn:ac.highwire.org:guest:privilege
                            [type] => privilege-set
                            [privilege-set] => GUEST
                        )

                )

            [credentials] => Array
                (
                    [method] => guest
                )

        )

    [43d8d8a7-e7d7-44d9-9916-2a6e317f1011] => Array
        (
            [runtime-id] => 43d8d8a7-e7d7-44d9-9916-2a6e317f1011
            [type] => toll-free-key
            [service-id] => ajnr-ac.highwire.org
            [access-type] => FreeToRead
            [privilege] => Array
                (
                    [f23e4296-3812-4335-a080-017918aa1f7e] => Array
                        (
                            [runtime-id] => f23e4296-3812-4335-a080-017918aa1f7e
                            [type] => toll-free-key
                        )

                )

            [credentials] => Array
                (
                    [method] => toll-free-key
                    [value] => tf_ipsecsha;853b1981cf380e61b53fbadf44286d527bf4af73
                )

        )

)
<!DOCTYPE html>
<html lang="en" dir="ltr" 
  xmlns="http://www.w3.org/1999/xhtml"
  xmlns:mml="http://www.w3.org/1998/Math/MathML">
  <head prefix="og: http://ogp.me/ns# article: http://ogp.me/ns/article# book: http://ogp.me/ns/book#" >
    <!--[if IE]><![endif]-->
<link rel="dns-prefetch" href="//securepubads.g.doubleclick.net" />
<link rel="dns-prefetch" href="//scholar.google.com" />
<link rel="dns-prefetch" href="//cdn.jsdelivr.net" />
<link rel="dns-prefetch" href="//www.google.com" />
<link rel="dns-prefetch" href="//www.googletagmanager.com" />
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<link rel="shortlink" href="/node/55506" />
<meta name="Generator" content="Drupal 7 (http://drupal.org)" />
<link rel="shortcut icon" href="http://ajnr-stage2.stage.highwire.org/sites/default/files/images/favicon.ico" type="image/vnd.microsoft.icon" />
<meta name="viewport" content="width=device-width, initial-scale=1" />
<meta name="issue_cover_image" content="http://ajnr-stage2.stage.highwire.org/sites/default/files/highwire/ajnr/38/8.cover-source.jpg" />
<meta name="type" content="article" />
<meta name="category" content="letter" />
<meta name="HW.identifier" content="/ajnr/38/8/E53.atom" />
<meta name="HW.pisa" content="ajnr;38/8/E53" />
<meta name="DC.Format" content="text/html" />
<meta name="DC.Language" content="en" />
<meta name="DC.Title" content="Regarding “What Is the Ideal Core Number for Ultrasonography-Guided Thyroid Biopsy of Cytologically Inconclusive Nodules?”" />
<meta name="DC.Identifier" content="10.3174/ajnr.A5231" />
<meta name="DC.Date" content="2017-08-01" />
<meta name="DC.Publisher" content="American Journal of Neuroradiology" />
<meta name="DC.Rights" content="© 2017 by American Journal of Neuroradiology" />
<meta name="DC.AccessRights" content="restricted" />
<meta name="DC.Description" content="We read with great interest the article “What Is the Ideal Core Number for Ultrasonography-Guided Thyroid Biopsy of Cytologically Inconclusive Nodules?” by Hahn et al.[1][1] In that study, the authors evaluated the correct number of core-needle specimens for patients with previously inconclusive" />
<meta name="DC.Contributor" content="H.S. Park" />
<meta name="DC.Contributor" content="J.H. Baek" />
<meta name="DC.Contributor" content="N.D. Gyu" />
<meta name="article:published_time" content="2017-08-01" />
<meta name="citation_title" content="Regarding “What Is the Ideal Core Number for Ultrasonography-Guided Thyroid Biopsy of Cytologically Inconclusive Nodules?”" />
<meta name="citation_journal_title" content="American Journal of Neuroradiology" />
<meta name="citation_publisher" content="American Journal of Neuroradiology" />
<meta name="citation_publication_date" content="2017/08/01" />
<meta name="citation_mjid" content="ajnr;38/8/E53" />
<meta name="citation_id" content="38/8/E53" />
<meta name="citation_public_url" content="http://ajnr-stage2.stage.highwire.org/content/38/8/E53" />
<meta name="citation_abstract_html_url" content="http://ajnr-stage2.stage.highwire.org/content/38/8/E53.abstract" />
<meta name="citation_full_html_url" content="http://ajnr-stage2.stage.highwire.org/content/38/8/E53.full" />
<meta name="citation_pdf_url" content="http://ajnr-stage2.stage.highwire.org/content/ajnr/38/8/E53.full.pdf" />
<meta name="citation_issn" content="0195-6108" />
<meta name="citation_issn" content="1936-959X" />
<meta name="citation_doi" content="10.3174/ajnr.A5231" />
<meta name="citation_pmid" content="28619835" />
<meta name="citation_volume" content="38" />
<meta name="citation_issue" content="8" />
<meta name="citation_article_type" content="Letter" />
<meta name="citation_firstpage" content="E53" />
<meta name="citation_lastpage" content="E54" />
<meta name="citation_author" content="H.S. Park" />
<meta name="citation_author_institution" content="aDepartment of Radiology and Research Institute of Radiology
University of Ulsan College of Medicine
Asan Medical Center
Seoul, Korea" />
<meta name="citation_author_orcid" content="http://orcid.org/0000-0003-0707-1875" />
<meta name="citation_author" content="J.H. Baek" />
<meta name="citation_author_institution" content="aDepartment of Radiology and Research Institute of Radiology
University of Ulsan College of Medicine
Asan Medical Center
Seoul, Korea" />
<meta name="citation_author_orcid" content="http://orcid.org/0000-0003-0480-4754" />
<meta name="citation_author" content="N.D. Gyu" />
<meta name="citation_author_institution" content="bDepartment of Radiology
GangNeung Asan Hospital
Seoul, Korea" />
<meta name="citation_author_institution" content="cDepartment of Radiology
Human Medical Imaging and Intervention Center
Seoul, Korea" />
<meta name="citation_author_orcid" content="http://orcid.org/0000-0001-6422-1652" />
<meta name="citation_reference" content="citation_journal_title=AJNR Am J Neuroradiol;citation_author=SY. Hahn;citation_author=JH. Shin;citation_author=YL. Oh;citation_title=What is the ideal core number for ultrasonography-guided thyroid biopsy of cytologically inconclusive nodules?;citation_volume=38;citation_year=2017;citation_pmid=28154123;citation_doi=10.3174/ajnr.A5075" />
<meta name="citation_reference" content="citation_journal_title=Korean J Radiol;citation_author=DG. Na;citation_author=JH. Baek;citation_author=SL. Jung;citation_title=Core needle biopsy of the thyroid: 2016 consensus statement and recommendations from Korean Society of Thyroid Radiology;citation_pages=217-37;citation_volume=18;citation_year=2017;citation_pmid=28096731;citation_doi=10.3348/kjr.2017.18.1.217" />
<meta name="citation_reference" content="citation_journal_title=Thyroid;citation_author=CH. Suh;citation_author=JH. Baek;citation_author=JH. Lee;citation_title=The role of core-needle biopsy as a first-line diagnostic tool for initially detected thyroid nodules;citation_pages=395-403;citation_volume=26;citation_year=2016;citation_pmid=26651390;citation_doi=10.1089/thy.2015.0404" />
<meta name="citation_reference" content="citation_journal_title=Korean J Radiol;citation_author=EJ. Ha;citation_author=JH. Baek;citation_author=JH. Lee;citation_title=Ultrasonography-based thyroidal and perithyroidal anatomy and its clinical significance;citation_pages=749-66;citation_volume=16;citation_year=2015;citation_pmid=26175574;citation_doi=10.3348/kjr.2015.16.4.749" />
<meta name="twitter:title" content="Regarding “What Is the Ideal Core Number for Ultrasonography-Guided Thyroid Biopsy of Cytologically Inconclusive Nodules?”" />
<meta name="twitter:card" content="summary_large_image" />
<meta name="twitter:image" content="http://ajnr-stage2.stage.highwire.org/sites/default/files/highwire/ajnr/38/8.cover-source.jpg" />
<meta name="twitter:description" content="We read with great interest the article “What Is the Ideal Core Number for Ultrasonography-Guided Thyroid Biopsy of Cytologically Inconclusive Nodules?” by Hahn et al.[1][1] In that study, the authors evaluated the correct number of core-needle specimens for patients with previously inconclusive" />
<meta name="og-title" property="og:title" content="Regarding “What Is the Ideal Core Number for Ultrasonography-Guided Thyroid Biopsy of Cytologically Inconclusive Nodules?”" />
<meta name="og-url" property="og:url" content="http://ajnr-stage2.stage.highwire.org/content/38/8/E53" />
<meta name="og-site-name" property="og:site_name" content="American Journal of Neuroradiology" />
<meta name="og-description" property="og:description" content="We read with great interest the article “What Is the Ideal Core Number for Ultrasonography-Guided Thyroid Biopsy of Cytologically Inconclusive Nodules?” by Hahn et al.[1][1] In that study, the authors evaluated the correct number of core-needle specimens for patients with previously inconclusive" />
<meta name="og-type" property="og:type" content="article" />
<meta name="og-image" property="og:image" content="http://ajnr-stage2.stage.highwire.org/sites/default/files/highwire/ajnr/38/8.cover-source.jpg" />
<link rel="alternate" type="text/plain" title="Full Text (Plain)" href="/content/38/8/E53.full.txt" />
<link rel="alternate" type="application/pdf" title="Full Text (PDF)" href="/content/38/8/E53.full.pdf" />
<link rel="canonical" href="http://ajnr-stage2.stage.highwire.org/content/38/8/E53" />
<script>window.dataLayer = window.dataLayer || [];window.dataLayer.push({"page":{"hwTitle":"Regarding \u201cWhat Is the Ideal Core Number for Ultrasonography-Guided Thyroid Biopsy of Cytologically Inconclusive Nodules?\u201d","hwUrl":"http://ajnr-stage2.stage.highwire.org/content/38/8/E53","hwPath":"/content/38/8/E53","hwType":"journal page"},"user":{"hwMemberID":"","hwLoggedIntoInstitutionID":"","hwLoggedIntoInstitution":"","hwAccessUsageTerms":"guest","hwRegisteredUser":"no","hwHasFullTextAccess":"yes","hwEntitled":"no"},"content":{"hwIssueDate":"2017-08-01","hwIssueDateTime":"2017-08-01 00:00:00","hwPublicationDate":"2017-08-14","hwPublicationDateTime":"2017-08-14 08:04:19","hwNlmArticleType":"letter","hwDOI":"10.3174/ajnr.A5231","hwAuthors":"H.S. Park,J.H. Baek,N.D. Gyu","hwContributors":"","hwIsEarlyRelease":"no","hwEissn":"1936-959X","hwPissn":"0195-6108","hwVolume":"38","hwIssue":"8","hwArticleType":"","hwTabView":"main_tab","hwViewType":"full","hwAccessType":"Free","hwOpenAccess":"no","hwFreeAccess":"yes","hwTaxonomy":"","hwCorpusCode":"ajnr","hwType":"article","hwSubtitle":null,"hwOverline":"","hwPisaId":"ajnr;38/8/E53","hwFirstPage":"E53","hwLastPage":"E54","hwIsLatestVersion":"yes","hwIsCurrentIssue":"no","hwIsOpenIssue":"no","hwHasFullText":"yes","hwHasPDF":"yes","hwParentTitle":"American Journal of Neuroradiology: 38 (8)","hwElectronicPubDate":"2017-08-14","hwElectronicPubDateTime":"2017-08-14 08:04:19"}});
//--><!]]></script>
    <title>Regarding “What Is the Ideal Core Number for Ultrasonography-Guided Thyroid Biopsy of Cytologically Inconclusive Nodules?” | American Journal of Neuroradiology</title>  
    <link type="text/css" rel="stylesheet" href="/sites/default/files/advagg_css/css__BJ6Ou6QsBRtnFTmxaakamOIS8n4QswDP2XnnZ1sxtaM__NBuvkP6eInGIkb1aJvUHx5PX79XApuxBDkk_77W5tYk__Op4k-kV4DoWc7bsUP7umKmZ0WXfmoYdRDoZFPNSd-oM.css" media="all" />
<link type="text/css" rel="stylesheet" href="/sites/default/files/advagg_css/css__azeXjFYQUa4gTbdEg4sgM2osudOlAYwVv6vNmRXI3ac__zr83wx5lNxUVx-jSIFm8RDKOeMAB7RbaBxriFHS3dt4__Op4k-kV4DoWc7bsUP7umKmZ0WXfmoYdRDoZFPNSd-oM.css" media="all" />
<link type="text/css" rel="stylesheet" href="/sites/default/files/advagg_css/css__Ep75tNOnm8H2Mejav16FnGCfM1sLwyporbQrCIgwg3g__vXGjszfa0bvxzymQ8Cfns-o2huFvm80jp3igN8XcYeI__Op4k-kV4DoWc7bsUP7umKmZ0WXfmoYdRDoZFPNSd-oM.css" media="all" />
<link type="text/css" rel="stylesheet" href="/sites/default/files/advagg_css/css__TKi6DXKzgLPdEthh1Tnc63zY1QF4rLZHoM06Xy7VN6g__zaEHphFiBcrl8WVy_4n080y02dQ7HKxd_aqZbYgQ5Z0__Op4k-kV4DoWc7bsUP7umKmZ0WXfmoYdRDoZFPNSd-oM.css" media="all" />
<link type="text/css" rel="stylesheet" href="/sites/all/modules/highwire/highwire/highwire.style.highwire.css?sycxuq" media="all" />
<link type="text/css" rel="stylesheet" href="/sites/default/files/advagg_css/css__368m7sVtRu23rjqTxGZiVyTf_Vgj9GfVKn_6XVu-Ktw__awmYo-4mw13F7nmNUNtBYLumKanDZb8salegB2jkN90__Op4k-kV4DoWc7bsUP7umKmZ0WXfmoYdRDoZFPNSd-oM.css" media="all" />
<link type="text/css" rel="stylesheet" href="//cdn.jsdelivr.net/qtip2/2.2.1/jquery.qtip.min.css" media="all" />
<link type="text/css" rel="stylesheet" href="/sites/default/files/advagg_css/css__s3iSgZTnBDLwclXWNzXbjuMAvFQFaENFs1vxZr4Duuc__gsGgRQs-Kh-ltrhV_VYmevBETTb8kXQYigkGymsqmdk__Op4k-kV4DoWc7bsUP7umKmZ0WXfmoYdRDoZFPNSd-oM.css" media="all" />
<style type="text/css" media="all">
/* <![CDATA[ */
#sliding-popup.sliding-popup-bottom,#sliding-popup.sliding-popup-bottom .eu-cookie-withdraw-banner,.eu-cookie-withdraw-tab{background:#000000;}#sliding-popup.sliding-popup-bottom.eu-cookie-withdraw-wrapper{background:transparent}#sliding-popup .popup-content #popup-text h1,#sliding-popup .popup-content #popup-text h2,#sliding-popup .popup-content #popup-text h3,#sliding-popup .popup-content #popup-text p,.eu-cookie-compliance-secondary-button,.eu-cookie-withdraw-tab{color:#ffffff !important;}.eu-cookie-withdraw-tab{border-color:#ffffff;}.eu-cookie-compliance-more-button{color:#ffffff !important;}

/* ]]> */
</style>

<!--[if lte IE 7]>
<link type="text/css" rel="stylesheet" href="/sites/default/files/advagg_css/css__ElJr3PIJEvw3qLXc1cnYiLj2G4KgDPSXFOfm6Phf8hw__JdWGm15cDWjsK6KrFlQVXQix9YgNeYysf22XZHj-Y-c__Op4k-kV4DoWc7bsUP7umKmZ0WXfmoYdRDoZFPNSd-oM.css" media="all" />
<![endif]-->
<link type="text/css" rel="stylesheet" href="/sites/default/files/advagg_css/css__Wnlyen9qEpwh_Qaf9okEu4QdVGM0BDothxeqA6Nbvo8__EJmw6SZD9bYoS8jocCpPYS3JFRURpdzmuvJoAUNiI-g__Op4k-kV4DoWc7bsUP7umKmZ0WXfmoYdRDoZFPNSd-oM.css" media="all" />
<link type="text/css" rel="stylesheet" href="/sites/default/files/advagg_css/css__nv7Hafs9UucfV8bmT4epWF4zWAFU2G9JLHVgOOHDqbA__k9QUw6MohZGXV0YlzqvUpPTbyzhbizsKOi4x3aA7Tx0__Op4k-kV4DoWc7bsUP7umKmZ0WXfmoYdRDoZFPNSd-oM.css" media="all" />

<!--[if (lt IE 9)&(!IEMobile)]>
<link type="text/css" rel="stylesheet" href="/sites/default/files/advagg_css/css__XH6bpcI0f2dImc-p674DLCZtWBGb-QwxJK1YexVGtno__vUceGprdo5nIhV6DH93X7fI3r8RcTJbChbas9TQXeW4__Op4k-kV4DoWc7bsUP7umKmZ0WXfmoYdRDoZFPNSd-oM.css" media="all" />
<![endif]-->

<!--[if gte IE 9]><!-->
<link type="text/css" rel="stylesheet" href="/sites/default/files/advagg_css/css__2WBMox6sOrN42ss5lCnH7WWVRdFdJCxtTKnQJYRwTE4__yqNvNYLvMpjy3ffuJrjjm9uW2i-Me1c23KLYuWHaqio__Op4k-kV4DoWc7bsUP7umKmZ0WXfmoYdRDoZFPNSd-oM.css" media="all" />
<!--<![endif]-->
<link type="text/css" rel="stylesheet" href="/sites/default/files/advagg_css/css__wxg7u6KrkAKrph8zjmzjNAiqxtVP2vhMWX2NZ6DPPZE__ECvRNuvDf2Tm_Pc-j1mEkt48QjmIz2s2CyWDspWAhhI__Op4k-kV4DoWc7bsUP7umKmZ0WXfmoYdRDoZFPNSd-oM.css" media="all" />
    <script type="text/javascript">
<!--//--><![CDATA[//><!--
/*!
 * yepnope1.5.4
 * (c) WTFPL, GPLv2
 */
(function(a,b,c){function d(a){return"[object Function]"==o.call(a)}function e(a){return"string"==typeof a}function f(){}function g(a){return!a||"loaded"==a||"complete"==a||"uninitialized"==a}function h(){var a=p.shift();q=1,a?a.t?m(function(){("c"==a.t?B.injectCss:B.injectJs)(a.s,0,a.a,a.x,a.e,1)},0):(a(),h()):q=0}function i(a,c,d,e,f,i,j){function k(b){if(!o&&g(l.readyState)&&(u.r=o=1,!q&&h(),l.onload=l.onreadystatechange=null,b)){"img"!=a&&m(function(){t.removeChild(l)},50);for(var d in y[c])y[c].hasOwnProperty(d)&&y[c][d].onload()}}var j=j||B.errorTimeout,l=b.createElement(a),o=0,r=0,u={t:d,s:c,e:f,a:i,x:j};1===y[c]&&(r=1,y[c]=[]),"object"==a?l.data=c:(l.src=c,l.type=a),l.width=l.height="0",l.onerror=l.onload=l.onreadystatechange=function(){k.call(this,r)},p.splice(e,0,u),"img"!=a&&(r||2===y[c]?(t.insertBefore(l,s?null:n),m(k,j)):y[c].push(l))}function j(a,b,c,d,f){return q=0,b=b||"j",e(a)?i("c"==b?v:u,a,b,this.i++,c,d,f):(p.splice(this.i++,0,a),1==p.length&&h()),this}function k(){var a=B;return a.loader={load:j,i:0},a}var l=b.documentElement,m=a.setTimeout,n=b.getElementsByTagName("script")[0],o={}.toString,p=[],q=0,r="MozAppearance"in l.style,s=r&&!!b.createRange().compareNode,t=s?l:n.parentNode,l=a.opera&&"[object Opera]"==o.call(a.opera),l=!!b.attachEvent&&!l,u=r?"object":l?"script":"img",v=l?"script":u,w=Array.isArray||function(a){return"[object Array]"==o.call(a)},x=[],y={},z={timeout:function(a,b){return b.length&&(a.timeout=b[0]),a}},A,B;B=function(a){function b(a){var a=a.split("!"),b=x.length,c=a.pop(),d=a.length,c={url:c,origUrl:c,prefixes:a},e,f,g;for(f=0;f<d;f++)g=a[f].split("="),(e=z[g.shift()])&&(c=e(c,g));for(f=0;f<b;f++)c=x[f](c);return c}function g(a,e,f,g,h){var i=b(a),j=i.autoCallback;i.url.split(".").pop().split("?").shift(),i.bypass||(e&&(e=d(e)?e:e[a]||e[g]||e[a.split("/").pop().split("?")[0]]),i.instead?i.instead(a,e,f,g,h):(y[i.url]?i.noexec=!0:y[i.url]=1,f.load(i.url,i.forceCSS||!i.forceJS&&"css"==i.url.split(".").pop().split("?").shift()?"c":c,i.noexec,i.attrs,i.timeout),(d(e)||d(j))&&f.load(function(){k(),e&&e(i.origUrl,h,g),j&&j(i.origUrl,h,g),y[i.url]=2})))}function h(a,b){function c(a,c){if(a){if(e(a))c||(j=function(){var a=[].slice.call(arguments);k.apply(this,a),l()}),g(a,j,b,0,h);else if(Object(a)===a)for(n in m=function(){var b=0,c;for(c in a)a.hasOwnProperty(c)&&b++;return b}(),a)a.hasOwnProperty(n)&&(!c&&!--m&&(d(j)?j=function(){var a=[].slice.call(arguments);k.apply(this,a),l()}:j[n]=function(a){return function(){var b=[].slice.call(arguments);a&&a.apply(this,b),l()}}(k[n])),g(a[n],j,b,n,h))}else!c&&l()}var h=!!a.test,i=a.load||a.both,j=a.callback||f,k=j,l=a.complete||f,m,n;c(h?a.yep:a.nope,!!i),i&&c(i)}var i,j,l=this.yepnope.loader;if(e(a))g(a,0,l,0);else if(w(a))for(i=0;i<a.length;i++)j=a[i],e(j)?g(j,0,l,0):w(j)?B(j):Object(j)===j&&h(j,l);else Object(a)===a&&h(a,l)},B.addPrefix=function(a,b){z[a]=b},B.addFilter=function(a){x.push(a)},B.errorTimeout=1e4,null==b.readyState&&b.addEventListener&&(b.readyState="loading",b.addEventListener("DOMContentLoaded",A=function(){b.removeEventListener("DOMContentLoaded",A,0),b.readyState="complete"},0)),a.yepnope=k(),a.yepnope.executeStack=h,a.yepnope.injectJs=function(a,c,d,e,i,j){var k=b.createElement("script"),l,o,e=e||B.errorTimeout;k.src=a;for(o in d)k.setAttribute(o,d[o]);c=j?h:c||f,k.onreadystatechange=k.onload=function(){!l&&g(k.readyState)&&(l=1,c(),k.onload=k.onreadystatechange=null)},m(function(){l||(l=1,c(1))},e),i?k.onload():n.parentNode.insertBefore(k,n)},a.yepnope.injectCss=function(a,c,d,e,g,i){var e=b.createElement("link"),j,c=i?h:c||f;e.href=a,e.rel="stylesheet",e.type="text/css";for(j in d)e.setAttribute(j,d[j]);g||(n.parentNode.insertBefore(e,n),m(c,0))}})(this,document);

//--><!]]>
</script>
<script type="text/javascript" src="/sites/all/libraries/modernizr/modernizr.min.js?sycxuq"></script>
<script type="text/javascript">
<!--//--><![CDATA[//><!--
yepnope({
  test: Modernizr.matchmedia,
  nope: '/sites/all/libraries/media-match/media.match.min.js'
});
//--><!]]>
</script>
<script type="text/javascript" src="/sites/default/files/advagg_js/js__wH8myWXKi4A-QKdUKDXzJAnGs-FRS1A2ZzTTNzjRAdI__4MCtOZK_Ov0QKyRlXNLGQ2LRlYRGWj9ArT-NpFox3QA__Op4k-kV4DoWc7bsUP7umKmZ0WXfmoYdRDoZFPNSd-oM.js"></script>
<script type="text/javascript">
<!--//--><![CDATA[//><!--
var googletag = googletag || {};
googletag.cmd = googletag.cmd || [];
googletag.slots = googletag.slots || {};
//--><!]]>
</script>
<script type="text/javascript" src="//securepubads.g.doubleclick.net/tag/js/gpt.js"></script>
<script type="text/javascript" src="/sites/default/files/advagg_js/js__9ici6QMeDS-cROq8R0RhuICsMGMP2wcJZNQQFsqQi44__kScSwG4RXGl1LXnj4qqt0ZxtNX4Gh2TK5W-o8Uup4SA__Op4k-kV4DoWc7bsUP7umKmZ0WXfmoYdRDoZFPNSd-oM.js"></script>
<script type="text/javascript" src="/sites/default/files/advagg_js/js__fwhbnUWIxW-jFl55E2mBYVtZTjGhJ1JWyZYAJ2cEd3A__jCrCuWCJIPYPe1FzZoUvsJWEjkNMmRIQHYek1h7idBE__Op4k-kV4DoWc7bsUP7umKmZ0WXfmoYdRDoZFPNSd-oM.js"></script>
<script type="text/javascript">
<!--//--><![CDATA[//><!--
googletag.slots["rhs"] = googletag.defineSlot("/446583111/RHS_300x250", [300, 250], "dfp-ad-rhs")
  .addService(googletag.pubads());
//--><!]]>
</script>
<script type="text/javascript" src="/sites/default/files/advagg_js/js__UR8BHznwml64Vq0ijSGFwlm-xe9ttj1aripHInFCOLw__irCalsu-H_fRTOPqjyCv1O8Ax7fqY6DDf-uMOV1dvGY__Op4k-kV4DoWc7bsUP7umKmZ0WXfmoYdRDoZFPNSd-oM.js"></script>
<script type="text/javascript">
<!--//--><![CDATA[//><!--
var mapping = googletag.sizeMapping()
  .addSize([768, 0], [728, 90])
  .addSize([0, 0], [300, 50])
  .build();
googletag.slots["bottom_leaderboard"] = googletag.defineSlot("/446583111/Bottom_Banner_728x90", [[728, 90], [300, 50]], "dfp-ad-bottom_leaderboard")
  .addService(googletag.pubads())
  .defineSizeMapping(mapping);
//--><!]]>
</script>
<script type="text/javascript" src="/sites/default/files/advagg_js/js__bQc6kyz_Gw2afC1F6wguCBh8Z8nev-hxX6F2Tw4bq6k__CO2faEsYCquY82rVj6as9HScSnogGHeR-oh5fSQydG0__Op4k-kV4DoWc7bsUP7umKmZ0WXfmoYdRDoZFPNSd-oM.js"></script>
<script type="text/javascript">
<!--//--><![CDATA[//><!--
var mapping = googletag.sizeMapping()
  .addSize([768, 0], [728, 90])
  .addSize([0, 0], [300, 50])
  .build();
googletag.slots["top_leaderboard"] = googletag.defineSlot("/446583111/Top_Leaderboard_728x90", [[728, 90], [300, 50]], "dfp-ad-top_leaderboard")
  .addService(googletag.pubads())
  .defineSizeMapping(mapping);
//--><!]]>
</script>
<script type="text/javascript" src="/sites/default/files/advagg_js/js__wS6WUeF11NLeJgCqxc-dMvjhALAMQG1jlaeWdG8yVZc__CPiombDS21ooaYdmqHXdcMoJwB2FMn18JzO97LewQxc__Op4k-kV4DoWc7bsUP7umKmZ0WXfmoYdRDoZFPNSd-oM.js"></script>
<script type="text/javascript">
<!--//--><![CDATA[//><!--
document.createElement( "picture" );
//--><!]]>
</script>
<script type="text/javascript" src="/sites/default/files/advagg_js/js__UK1ygaa8bCfT-jsjqYRdRLDZ5N17950T7K5WPC9XtpI__NqLYT1T1SMBsKukLWIe82VgCZYYCMHZX_f609-a1rj8__Op4k-kV4DoWc7bsUP7umKmZ0WXfmoYdRDoZFPNSd-oM.js"></script>
<script type="text/javascript">
<!--//--><![CDATA[//><!--
googletag.cmd.push(function() {
  googletag.pubads().enableAsyncRendering();
  googletag.pubads().enableSingleRequest();
  googletag.pubads().collapseEmptyDivs();
  googletag.pubads().addEventListener("slotRenderEnded", function (event) {
    if (event.isEmpty) {
      var id = event.slot.getSlotElementId();
      var x = document.getElementById(id);
      if (x.parentElement.classList.contains("dfp-tag-wrapper")) {
        x.parentElement.style.display = "none";
      }
    }
  });
  googletag.pubads().setTargeting("page:hwTitle", "Regarding “What Is the Ideal Core Number for Ultrasonography-Guided Thyroid Biopsy of Cytologically Inconclusive Nodules?”");
  googletag.pubads().setTargeting("page:hwUrl", "http://ajnr-stage2.stage.highwire.org/content/38/8/E53");
  googletag.pubads().setTargeting("page:hwPath", "/content/38/8/E53");
  googletag.pubads().setTargeting("page:hwType", "journal page");
  googletag.pubads().setTargeting("user:hwAccessUsageTerms", "guest");
  googletag.pubads().setTargeting("user:hwRegisteredUser", "no");
  googletag.pubads().setTargeting("user:hwHasFullTextAccess", "yes");
  googletag.pubads().setTargeting("user:hwEntitled", "no");
  googletag.pubads().setTargeting("content:hwIssueDate", "2017-08-01");
  googletag.pubads().setTargeting("content:hwIssueDateTime", "2017-08-01 00:00:00");
  googletag.pubads().setTargeting("content:hwPublicationDate", "2017-08-14");
  googletag.pubads().setTargeting("content:hwPublicationDateTime", "2017-08-14 08:04:19");
  googletag.pubads().setTargeting("content:hwNlmArticleType", "letter");
  googletag.pubads().setTargeting("content:hwDOI", "10.3174/ajnr.A5231");
  googletag.pubads().setTargeting("content:hwAuthors", ["H.S. Park","J.H. Baek","N.D. Gyu"]);
  googletag.pubads().setTargeting("content:hwIsEarlyRelease", "no");
  googletag.pubads().setTargeting("content:hwEissn", "1936-959X");
  googletag.pubads().setTargeting("content:hwPissn", "0195-6108");
  googletag.pubads().setTargeting("content:hwVolume", "38");
  googletag.pubads().setTargeting("content:hwIssue", "8");
  googletag.pubads().setTargeting("content:hwTabView", "main_tab");
  googletag.pubads().setTargeting("content:hwViewType", "full");
  googletag.pubads().setTargeting("content:hwAccessType", "Free");
  googletag.pubads().setTargeting("content:hwOpenAccess", "no");
  googletag.pubads().setTargeting("content:hwFreeAccess", "yes");
  googletag.pubads().setTargeting("content:hwCorpusCode", "ajnr");
  googletag.pubads().setTargeting("content:hwType", "article");
  googletag.pubads().setTargeting("content:hwPisaId", "ajnr;38/8/E53");
  googletag.pubads().setTargeting("content:hwFirstPage", "E53");
  googletag.pubads().setTargeting("content:hwLastPage", "E54");
  googletag.pubads().setTargeting("content:hwIsLatestVersion", "yes");
  googletag.pubads().setTargeting("content:hwIsCurrentIssue", "no");
  googletag.pubads().setTargeting("content:hwIsOpenIssue", "no");
  googletag.pubads().setTargeting("content:hwHasFullText", "yes");
  googletag.pubads().setTargeting("content:hwHasPDF", "yes");
  googletag.pubads().setTargeting("content:hwParentTitle", "American Journal of Neuroradiology: 38 (8)");
  googletag.pubads().setTargeting("content:hwElectronicPubDate", "2017-08-14");
  googletag.pubads().setTargeting("content:hwElectronicPubDateTime", "2017-08-14 08:04:19");
});

googletag.enableServices();
//--><!]]>
</script>
<script type="text/javascript" src="/sites/default/files/advagg_js/js__3vwOA0BwlnyBkt9H4CLg6FgNyKAh--OmfOxFOIu_5S4__EXTgktcHbQ7BQfelY6CnrqgPRc4i4eD6XcZ4i3xs5RU__Op4k-kV4DoWc7bsUP7umKmZ0WXfmoYdRDoZFPNSd-oM.js"></script>
<script type="text/javascript" async="async" src="https://scholar.google.com/scholar_js/casa.js"></script>
<script type="text/javascript" src="/sites/default/files/advagg_js/js__11OTRBANYp_FPYy8gxuWv8XYK780LivNl9ef5qg3rfw__TEVdNksA7-zrPiZwnenYHdToBjuVChsDlzQL_vP4NkY__Op4k-kV4DoWc7bsUP7umKmZ0WXfmoYdRDoZFPNSd-oM.js"></script>
<script type="text/javascript" src="//cdn.jsdelivr.net/qtip2/2.2.1/jquery.qtip.min.js"></script>
<script type="text/javascript" src="/sites/default/files/advagg_js/js__yiXGyyzC1oV2sZBtAUN2DFoM2mAH5KP0iYCqS1dmafE__UiTPqZo1iNHqhqhx1lKGu2xkUGpxmin5ny6_22C53JA__Op4k-kV4DoWc7bsUP7umKmZ0WXfmoYdRDoZFPNSd-oM.js"></script>
<script type="text/javascript">
<!--//--><![CDATA[//><!--
if(typeof window.MathJax === "undefined") window.MathJax = { menuSettings: { zoom: "Click" } };
//--><!]]>
</script>
<script type="text/javascript" src="/sites/default/files/advagg_js/js__gzglMimeshoybn5FdOUfx5zFIzXjSZCarAdAqdFwzb0__XnS2ZmP_Eu1FvGruois2GWaJM4qn-3H8Rt4VF8dvyrA__Op4k-kV4DoWc7bsUP7umKmZ0WXfmoYdRDoZFPNSd-oM.js"></script>
<script type="text/javascript" src="https://www.google.com/recaptcha/api.js?hl=en&amp;render=explicit&amp;onload=drupalRecaptchaOnload"></script>
<script type="text/javascript" src="/sites/default/files/advagg_js/js__4ykqVVdSaGtVGauctG3E3Uojp_237f35KQ7wMtKX9S4__4JHByHSitU6UdWxmWARTSoZyB2PFgzkw__raxGdvbvk__Op4k-kV4DoWc7bsUP7umKmZ0WXfmoYdRDoZFPNSd-oM.js"></script>
<script type="text/javascript">
<!--//--><![CDATA[//><!--

      $(document).ready(function() {
          $.getJSON("//www.deepdyve.com/rental-link?docId=10.3174/ajnr.A5231&journal=1936-959X&fieldName=journal_doi&affiliateId=asnr&format=jsonp&callback=?", function(data) {
            if (data.status === "ok") {
              // Update the href url so it goes straight to the article page
              $(".js-deepdyve-link a").attr("href", data.url);
              $(".js-deepdyve-link").show();
            } else if (data.status === "not_found") {
              $(".js-deepdyve-link").hide();
            }
          });
        });
//--><!]]>
</script>
<script type="text/javascript" src="/sites/default/files/advagg_js/js__4lG8Nd_Z78ebRQwNtbOlh_jt-whQYFW5Try6DwQUwAM__8EEmyuTE_JxYCL1fbIkxkI5UUKYRtta33k484QkazhA__Op4k-kV4DoWc7bsUP7umKmZ0WXfmoYdRDoZFPNSd-oM.js"></script>
<script type="text/javascript" async="async" src="https://www.googletagmanager.com/gtag/js?id=G-4CRTLTY8KW"></script>
<script type="text/javascript">
<!--//--><![CDATA[//><!--
window.dataLayer = window.dataLayer || [];function gtag(){dataLayer.push(arguments)};gtag("js", new Date());gtag("set", "developer_id.dMDhkMT", true);gtag("config", "G-4CRTLTY8KW", {"groups":"default","anonymize_ip":true});
//--><!]]>
</script>
<script type="text/javascript" src="/sites/default/files/advagg_js/js__xwmR_XUqgIHdKocIkn2GiqYMVWJ0gY7OwpoARPRxEYM__CdSkXbn46iKUJfVct1nUx50N8MQ35eZOCMya9EuGbeU__Op4k-kV4DoWc7bsUP7umKmZ0WXfmoYdRDoZFPNSd-oM.js"></script>
<script type="text/javascript" src="/sites/default/files/advagg_js/js__156__G_TX0wWbp2x4EuISKOgbs4NaeHZ2KmXq85T6UI__w2izI_4UeJKq2XZJo79kNkQyxp_-2ptYjzA3YJcr-tg__Op4k-kV4DoWc7bsUP7umKmZ0WXfmoYdRDoZFPNSd-oM.js"></script>
<script type="text/javascript" src="/sites/default/files/advagg_js/js__az53Pz-SG0wejB-7UDzC-AbKqNFb4dAiZbq9Ymbj0sY__8FyXs8A34T1jX6OUXsgX27-4ASoy8QDncslXiOc2PK4__Op4k-kV4DoWc7bsUP7umKmZ0WXfmoYdRDoZFPNSd-oM.js"></script>
<script type="text/javascript">
<!--//--><![CDATA[//><!--
jQuery.extend(Drupal.settings, {"basePath":"\/","pathPrefix":"","ajaxPageState":{"theme":"jcore_1","theme_token":"imnS8ADoAH-GuwZrFEbVK4l7b6De8H8omZygEzpPy1E","js":{"sites\/all\/libraries\/modernizr\/modernizr.min.js":1,"sites\/all\/modules\/contrib\/jquery_update\/replace\/jquery\/1.8\/jquery.min.js":1,"misc\/jquery-extend-3.4.0.js":1,"misc\/jquery.once.js":1,"misc\/drupal.js":1,"sites\/all\/modules\/contrib\/jquery_update\/replace\/ui\/ui\/minified\/jquery.ui.core.min.js":1,"sites\/all\/modules\/contrib\/jquery_update\/replace\/ui\/ui\/minified\/jquery.ui.widget.min.js":1,"sites\/all\/modules\/contrib\/jquery_update\/replace\/ui\/ui\/minified\/jquery.ui.button.min.js":1,"sites\/all\/modules\/contrib\/jquery_update\/replace\/ui\/ui\/minified\/jquery.ui.mouse.min.js":1,"sites\/all\/modules\/contrib\/jquery_update\/replace\/ui\/ui\/minified\/jquery.ui.draggable.min.js":1,"sites\/all\/modules\/contrib\/jquery_update\/replace\/ui\/ui\/minified\/jquery.ui.position.min.js":1,"sites\/all\/modules\/contrib\/jquery_update\/replace\/ui\/ui\/minified\/jquery.ui.resizable.min.js":1,"sites\/all\/modules\/contrib\/jquery_update\/replace\/ui\/ui\/minified\/jquery.ui.dialog.min.js":1,"sites\/all\/modules\/contrib\/jquery_update\/replace\/ui\/ui\/minified\/jquery.ui.tooltip.min.js":1,"sites\/all\/modules\/contrib\/jquery_update\/replace\/ui\/ui\/minified\/jquery.ui.accordion.min.js":1,"sites\/all\/libraries\/jquery.bgiframe\/jquery.bgiframe.js":1,"sites\/all\/libraries\/jquery.hoverIntent\/jquery.hoverIntent.js":1,"sites\/all\/libraries\/superfish\/superfish.js":1,"sites\/all\/modules\/contrib\/nice_menus\/js\/nice_menus.js":1,"sites\/all\/modules\/contrib\/eu_cookie_compliance\/js\/jquery.cookie-1.4.1.min.js":1,"sites\/all\/modules\/highwire\/highwire\/js\/highwire.equal-heights.js":1,"sites\/all\/modules\/highwire\/highwire\/js\/highwire.panels-ajax-tab.js":1,"sites\/all\/libraries\/colorbox\/jquery.colorbox-min.js":1,"sites\/all\/modules\/contrib\/colorbox\/js\/colorbox.js":1,"sites\/all\/modules\/contrib\/colorbox\/styles\/default\/colorbox_style.js":1,"https:\/\/scholar.google.com\/scholar_js\/casa.js":1,"sites\/all\/modules\/highwire\/highwire\/highwire_log\/highwire_log.js":1,"sites\/all\/modules\/highwire\/highwire\/highwire_user\/js\/highwire_user_meta.js":1,"sites\/all\/modules\/contrib\/panels_ajax_tab\/js\/panels_ajax_tab.js":1,"\/\/cdn.jsdelivr.net\/qtip2\/2.2.1\/jquery.qtip.min.js":1,"sites\/all\/modules\/highwire\/highwire\/plugins\/highwire_markup_process\/js\/highwire_article_reference_popup.js":1,"sites\/all\/modules\/highwire\/highwire\/plugins\/highwire_markup_process\/js\/highwire_at_symbol.js":1,"sites\/all\/modules\/contrib\/captcha\/captcha.js":1,"misc\/textarea.js":1,"sites\/all\/modules\/contrib\/recaptcha\/js\/recaptcha.js":1,"https:\/\/www.google.com\/recaptcha\/api.js?hl=en\u0026render=explicit\u0026onload=drupalRecaptchaOnload":1,"sites\/all\/modules\/highwire\/highwire\/highwire_citation\/plugins\/content_types\/js\/highwire_citation_export.js":1,"sites\/all\/modules\/highwire\/highwire\/plugins\/content_types\/js\/minipanel_dialog_link.js":1,"sites\/all\/modules\/highwire\/highwire\/plugins\/content_types\/js\/highwire_share_dialog.js":1,"sites\/all\/modules\/highwire\/highwire\/plugins\/content_types\/js\/clipboard.min.js":1,"sites\/all\/modules\/highwire\/highwire\/plugins\/content_types\/js\/highwire_clipboard.js":1,"sites\/all\/modules\/contrib\/service_links\/js\/twitter_button.js":1,"sites\/all\/modules\/contrib\/service_links\/js\/facebook_like.js":1,"sites\/all\/modules\/contrib\/service_links\/js\/google_plus_one.js":1,"sites\/all\/modules\/highwire\/highwire\/plugins\/content_types\/js\/highwire_article_nav.js":1,"sites\/all\/modules\/highwire\/highwire\/plugins\/content_types\/js\/highwire_nav_float.js":1,"sites\/all\/modules\/highwire\/highwire\/plugins\/content_types\/js\/highwire_citing_links.js":1,"sites\/all\/modules\/highwire\/highwire\/highwire_search\/plugins\/content_types\/js\/highwire_search_similar_articles.js":1,"sites\/all\/modules\/contrib\/panels_accordion\/js\/panels_accordion.js":1,"sites\/all\/modules\/highwire\/highwire\/js\/highwire.article-citation-access.js":1,"sites\/all\/modules\/highwire\/highwire\/js\/highwire.article-citation-author-tooltip.js":1,"sites\/all\/modules\/highwire\/highwire\/highwire_responsive\/plugins\/styles\/highwire_responsive_toggle\/highwire_responsive_toggle.js":1,"sites\/all\/modules\/contrib\/google_analytics\/googleanalytics.js":1,"https:\/\/www.googletagmanager.com\/gtag\/js?id=G-4CRTLTY8KW":1,"sites\/all\/themes\/highwire\/jcore_1\/js\/theme-scripts.js":1,"sites\/all\/modules\/highwire\/highwire\/highwire_responsive\/js\/highwire-mediaqueries.js":1,"sites\/all\/libraries\/enquire.js\/enquire.min.js":1,"sites\/all\/modules\/contrib\/picture\/picturefill2\/picturefill.min.js":1,"sites\/all\/modules\/contrib\/picture\/picture.min.js":1,"sites\/all\/modules\/highwire\/highwire\/plugins\/content_types\/js\/highwire_panels_ajax_tab.js":1,"sites\/all\/modules\/highwire\/highwire\/plugins\/highwire_markup_process\/js\/highwire_openurl.js":1,"sites\/all\/modules\/highwire\/highwire\/plugins\/highwire_markup_process\/js\/highwire_google_scholar_sprinkle.js":1,"sites\/all\/modules\/highwire\/highwire\/plugins\/content_types\/js\/highwire_article_trendmd.js":1,"sites\/all\/modules\/highwire\/highwire\/highwire_user\/plugins\/content_types\/js\/highwire_user_salutation.js":1,"sites\/all\/modules\/contrib\/eu_cookie_compliance\/js\/eu_cookie_compliance.js":1,"http:\/\/securepubads.g.doubleclick.net\/tag\/js\/gpt.js":1,"sites\/all\/modules\/highwire\/highwire\/js\/highwire.gtranslate.js":1,"sites\/all\/modules\/highwire\/highwire\/highwire_datalayer\/js\/highwire_datalayer.js":1,"sites\/all\/themes\/contrib\/omega\/omega\/js\/jquery.formalize.js":1,"sites\/all\/themes\/contrib\/omega\/omega\/js\/omega-mediaqueries.js":1,"sites\/all\/themes\/contrib\/omega\/omega\/js\/omega-equalheights.js":1},"css":{"modules\/system\/system.base.css":1,"modules\/system\/system.menus.css":1,"modules\/system\/system.messages.css":1,"modules\/system\/system.theme.css":1,"misc\/ui\/jquery.ui.core.css":1,"misc\/ui\/jquery.ui.theme.css":1,"misc\/ui\/jquery.ui.button.css":1,"misc\/ui\/jquery.ui.resizable.css":1,"misc\/ui\/jquery.ui.dialog.css":1,"misc\/ui\/jquery.ui.tooltip.css":1,"misc\/ui\/jquery.ui.accordion.css":1,"sites\/all\/modules\/contrib\/date\/date_api\/date.css":1,"sites\/all\/modules\/contrib\/date\/date_popup\/themes\/datepicker.1.7.css":1,"modules\/field\/theme\/field.css":1,"sites\/all\/modules\/highwire\/highwire\/highwire_draw\/css\/highwire-draw.css":1,"sites\/all\/modules\/highwire\/highwire\/highwire_folders\/highwire_folders.css":1,"sites\/all\/modules\/highwire\/highwire\/highwire_responsive\/css\/highwire-responsive.css":1,"sites\/all\/modules\/highwire\/highwire\/highwire_saved_searches\/highwire_saved_searches.css":1,"sites\/all\/modules\/highwire\/highwire\/highwire_user\/highwire_user.css":1,"modules\/node\/node.css":1,"sites\/all\/modules\/contrib\/picture\/picture_wysiwyg.css":1,"modules\/search\/search.css":1,"modules\/user\/user.css":1,"sites\/all\/modules\/contrib\/views\/css\/views.css":1,"sites\/all\/modules\/contrib\/ckeditor\/css\/ckeditor.css":1,"sites\/all\/modules\/contrib\/colorbox\/styles\/default\/colorbox_style.css":1,"sites\/all\/modules\/contrib\/ctools\/css\/ctools.css":1,"sites\/all\/modules\/contrib\/google_admanager\/google_admanager.css":1,"sites\/all\/modules\/highwire\/highwire\/highwire.style.highwire.css":1,"sites\/all\/modules\/highwire\/highwire\/css\/nlm-elements.css":1,"sites\/all\/modules\/contrib\/panels\/css\/panels.css":1,"public:\/\/ctools\/css\/263bfdb18936424f0ade19d6bd885f37.css":1,"sites\/all\/modules\/contrib\/panels_ajax_tab\/css\/panels_ajax_tab.css":1,"sites\/all\/modules\/highwire\/highwire\/plugins\/content_types\/css\/highwire_corrections.css":1,"sites\/all\/modules\/highwire\/highwire\/highwire.style.markup.css":1,"\/\/cdn.jsdelivr.net\/qtip2\/2.2.1\/jquery.qtip.min.css":1,"sites\/all\/modules\/highwire\/highwire\/plugins\/layouts\/highwire_2col_stacked\/highwire-2col-stacked.css":1,"sites\/all\/modules\/contrib\/forward\/forward.css":1,"sites\/all\/modules\/highwire\/highwire\/plugins\/content_types\/css\/highwire_share_link.css":1,"sites\/all\/modules\/highwire\/highwire\/plugins\/content_types\/css\/highwire_copy_permalink.css":1,"sites\/all\/modules\/highwire\/highwire\/plugins\/content_types\/css\/highwire_reports_feed.css":1,"sites\/all\/modules\/highwire\/highwire\/css\/highwire-article-citation-list.css":1,"sites\/all\/modules\/highwire\/highwire\/plugins\/content_types\/css\/highwire_citing_links.css":1,"sites\/all\/modules\/highwire\/highwire\/highwire_responsive\/plugins\/styles\/highwire_responsive_toggle\/highwire_responsive_toggle.css.less":1,"sites\/all\/modules\/contrib\/nice_menus\/css\/nice_menus.css":1,"sites\/all\/modules\/contrib\/nice_menus\/css\/nice_menus_default.css":1,"sites\/all\/modules\/contrib\/panels\/plugins\/layouts\/onecol\/onecol.css":1,"sites\/all\/modules\/contrib\/eu_cookie_compliance\/css\/eu_cookie_compliance.css":1,"sites\/all\/modules\/highwire\/highwire\/css\/highwire.gtranslate.css":1,"sites\/all\/modules\/highwire\/highwire\/highwire_theme_tools\/css\/font-hwicons.css":1,"sites\/all\/modules\/highwire\/highwire\/highwire_theme_tools\/css\/font-hwicons-glyphs.css":1,"sites\/all\/themes\/highwire\/jcore_1\/eu_cookie_compliance.css":1,"sites\/all\/themes\/highwire\/jcore_1\/css\/font-awesome-ie7.css":1,"sites\/all\/themes\/contrib\/omega\/alpha\/css\/alpha-reset.css":1,"sites\/all\/themes\/contrib\/omega\/alpha\/css\/alpha-mobile.css":1,"sites\/all\/themes\/contrib\/omega\/alpha\/css\/alpha-alpha.css":1,"sites\/all\/themes\/contrib\/omega\/omega\/css\/formalize.css":1,"sites\/all\/themes\/contrib\/omega\/omega\/css\/omega-text.css":1,"sites\/all\/themes\/contrib\/omega\/omega\/css\/omega-branding.css":1,"sites\/all\/themes\/contrib\/omega\/omega\/css\/omega-menu.css":1,"sites\/all\/themes\/contrib\/omega\/omega\/css\/omega-forms.css":1,"sites\/all\/modules\/highwire\/highwire\/css\/highwire-forms.css":1,"sites\/all\/themes\/highwire\/jcore_1\/css\/mobile-reset.css":1,"sites\/all\/themes\/highwire\/jcore_1\/css\/font-awesome.css":1,"sites\/all\/themes\/highwire\/jcore_1\/css\/forms.css":1,"sites\/all\/themes\/highwire\/jcore_1\/css\/global.css":1,"sites\/all\/themes\/highwire\/jcore_1\/css\/jquery-ui-elements.css":1,"sites\/all\/themes\/highwire\/jcore_1\/css\/text.css":1,"sites\/all\/themes\/highwire\/jcore_1\/css\/eletters.css":1,"sites\/all\/themes\/highwire\/jcore_1\/css\/colors.css.less":1,"ie::normal::sites\/all\/themes\/highwire\/jcore_1\/css\/jcore-1-jcore-default.css":1,"ie::normal::sites\/all\/themes\/highwire\/jcore_1\/css\/jcore-1-jcore-default-normal.css":1,"ie::normal::sites\/all\/themes\/highwire\/jcore_1\/css\/grid\/jcore_default\/normal\/jcore-default-normal-30.css":1,"narrow::sites\/all\/themes\/highwire\/jcore_1\/css\/jcore-1-jcore-default.css":1,"narrow::sites\/all\/themes\/highwire\/jcore_1\/css\/jcore-1-jcore-default-narrow.css":1,"sites\/all\/themes\/highwire\/jcore_1\/css\/grid\/jcore_default\/narrow\/jcore-default-narrow-30.css":1,"normal::sites\/all\/themes\/highwire\/jcore_1\/css\/jcore-1-jcore-default.css":1,"normal::sites\/all\/themes\/highwire\/jcore_1\/css\/jcore-1-jcore-default-normal.css":1,"sites\/all\/themes\/highwire\/jcore_1\/css\/grid\/jcore_default\/normal\/jcore-default-normal-30.css":1,"wide::sites\/all\/themes\/highwire\/jcore_1\/css\/jcore-1-jcore-default.css":1,"wide::sites\/all\/themes\/highwire\/jcore_1\/css\/jcore-1-jcore-default-wide.css":1,"sites\/all\/themes\/highwire\/jcore_1\/css\/grid\/jcore_default\/wide\/jcore-default-wide-30.css":1,"sites\/all\/modules\/shared\/jnl_ajnr_styles\/css\/jnl-ajnr-styles.css.less":1,"sites\/all\/modules\/shared\/jnl_ajnr_styles\/css\/jnl-ajnr-breakpoints.css.less":1}},"colorbox":{"opacity":"0.85","current":"{current} of {total}","previous":"\u00ab Prev","next":"Next \u00bb","close":"Close","maxWidth":"98%","maxHeight":"98%","fixed":true,"mobiledetect":true,"mobiledevicewidth":"480px"},"highwire":{"markup":[{"requested":"full-text","variant":"full-text","view":"full","pisa":"ajnr;38\/8\/E53"},{"requested":"long","variant":"full-text","view":"full","pisa":"ajnr;38\/8\/E53"},{"requested":"full-text","variant":"full-text","view":"full","pisa":"ajnr;38\/8\/E53"}],"nid":"55506","apath":"\/ajnr\/38\/8\/E53.atom","pisa":"ajnr;38\/8\/E53","ac":{"\/ajnr\/38\/8\/E53.atom":{"access":{"full":true,"reprint":true},"pisa_id":"","apath":"\/ajnr\/38\/8\/E53.atom","jcode":"ajnr"},"ajnr;38\/8\/E53":{"access":{"full":true},"pisa_id":"ajnr;38\/8\/E53","apath":"","jcode":"ajnr"}},"processed":["highwire_math"],"trendmd":{"trendmd-suggestions":"{\u0022element\u0022:\u0022#trendmd-suggestions\u0022,\u0022track_id\u0022:\u0022null\u0022}"},"modal_window_width":"560","share_modal_width":"560","share_modal_title":"Share this Article","dataLayer":"{\u0022page\u0022:{\u0022hwTitle\u0022:\u0022Regarding \\u201cWhat Is the Ideal Core Number for Ultrasonography-Guided Thyroid Biopsy of Cytologically Inconclusive Nodules?\\u201d\u0022,\u0022hwUrl\u0022:\u0022http:\\\/\\\/ajnr-stage2.stage.highwire.org\\\/content\\\/38\\\/8\\\/E53\u0022,\u0022hwPath\u0022:\u0022\\\/content\\\/38\\\/8\\\/E53\u0022,\u0022hwType\u0022:\u0022journal page\u0022},\u0022user\u0022:{\u0022hwMemberID\u0022:\u0022\u0022,\u0022hwLoggedIntoInstitutionID\u0022:\u0022\u0022,\u0022hwLoggedIntoInstitution\u0022:\u0022\u0022,\u0022hwAccessUsageTerms\u0022:\u0022guest\u0022,\u0022hwRegisteredUser\u0022:\u0022no\u0022,\u0022hwHasFullTextAccess\u0022:\u0022yes\u0022,\u0022hwEntitled\u0022:\u0022no\u0022},\u0022content\u0022:{\u0022hwIssueDate\u0022:\u00222017-08-01\u0022,\u0022hwIssueDateTime\u0022:\u00222017-08-01 00:00:00\u0022,\u0022hwPublicationDate\u0022:\u00222017-08-14\u0022,\u0022hwPublicationDateTime\u0022:\u00222017-08-14 08:04:19\u0022,\u0022hwNlmArticleType\u0022:\u0022letter\u0022,\u0022hwDOI\u0022:\u002210.3174\\\/ajnr.A5231\u0022,\u0022hwAuthors\u0022:\u0022H.S. Park,J.H. Baek,N.D. Gyu\u0022,\u0022hwContributors\u0022:\u0022\u0022,\u0022hwIsEarlyRelease\u0022:\u0022no\u0022,\u0022hwEissn\u0022:\u00221936-959X\u0022,\u0022hwPissn\u0022:\u00220195-6108\u0022,\u0022hwVolume\u0022:\u002238\u0022,\u0022hwIssue\u0022:\u00228\u0022,\u0022hwArticleType\u0022:\u0022\u0022,\u0022hwTabView\u0022:\u0022main_tab\u0022,\u0022hwViewType\u0022:\u0022full\u0022,\u0022hwAccessType\u0022:\u0022Free\u0022,\u0022hwOpenAccess\u0022:\u0022no\u0022,\u0022hwFreeAccess\u0022:\u0022yes\u0022,\u0022hwTaxonomy\u0022:\u0022\u0022,\u0022hwCorpusCode\u0022:\u0022ajnr\u0022,\u0022hwType\u0022:\u0022article\u0022,\u0022hwSubtitle\u0022:null,\u0022hwOverline\u0022:\u0022\u0022,\u0022hwPisaId\u0022:\u0022ajnr;38\\\/8\\\/E53\u0022,\u0022hwFirstPage\u0022:\u0022E53\u0022,\u0022hwLastPage\u0022:\u0022E54\u0022,\u0022hwIsLatestVersion\u0022:\u0022yes\u0022,\u0022hwIsCurrentIssue\u0022:\u0022no\u0022,\u0022hwIsOpenIssue\u0022:\u0022no\u0022,\u0022hwHasFullText\u0022:\u0022yes\u0022,\u0022hwHasPDF\u0022:\u0022yes\u0022,\u0022hwParentTitle\u0022:\u0022American Journal of Neuroradiology: 38 (8)\u0022,\u0022hwElectronicPubDate\u0022:\u00222017-08-14\u0022,\u0022hwElectronicPubDateTime\u0022:\u00222017-08-14 08:04:19\u0022}}"},"highwire_panel_tabs":[{"panel_name":"jnl_ajnr_tab_pdf","panel_ajax_tab":"jnl_ajnr_tab_pdf"}],"panel_ajax_tab":{"path":"sites\/all\/modules\/contrib\/panels_ajax_tab"},"instances":"{\u0022highwire_abstract_tooltip\u0022:{\u0022content\u0022:{\u0022text\u0022:\u0022\u0022},\u0022style\u0022:{\u0022tip\u0022:{\u0022width\u0022:20,\u0022height\u0022:20,\u0022border\u0022:1,\u0022offset\u0022:0,\u0022corner\u0022:true},\u0022classes\u0022:\u0022qtip-custom hw-tooltip hw-abstract-tooltip qtip-shadow qtip-rounded\u0022,\u0022classes_custom\u0022:\u0022hw-tooltip hw-abstract-tooltip\u0022},\u0022position\u0022:{\u0022at\u0022:\u0022right center\u0022,\u0022my\u0022:\u0022left center\u0022,\u0022viewport\u0022:true,\u0022adjust\u0022:{\u0022method\u0022:\u0022shift\u0022}},\u0022show\u0022:{\u0022event\u0022:\u0022mouseenter click \u0022,\u0022solo\u0022:true},\u0022hide\u0022:{\u0022event\u0022:\u0022mouseleave \u0022,\u0022fixed\u0022:1,\u0022delay\u0022:\u0022100\u0022}},\u0022highwire_author_tooltip\u0022:{\u0022content\u0022:{\u0022text\u0022:\u0022\u0022},\u0022style\u0022:{\u0022tip\u0022:{\u0022width\u0022:15,\u0022height\u0022:15,\u0022border\u0022:1,\u0022offset\u0022:0,\u0022corner\u0022:true},\u0022classes\u0022:\u0022qtip-custom hw-tooltip hw-author-tooltip qtip-shadow qtip-rounded\u0022,\u0022classes_custom\u0022:\u0022hw-tooltip hw-author-tooltip\u0022},\u0022position\u0022:{\u0022at\u0022:\u0022top center\u0022,\u0022my\u0022:\u0022bottom center\u0022,\u0022viewport\u0022:true,\u0022adjust\u0022:{\u0022method\u0022:\u0022\u0022}},\u0022show\u0022:{\u0022event\u0022:\u0022mouseenter \u0022,\u0022solo\u0022:true},\u0022hide\u0022:{\u0022event\u0022:\u0022mouseleave \u0022,\u0022fixed\u0022:1,\u0022delay\u0022:\u0022100\u0022}},\u0022highwire_reflinks_tooltip\u0022:{\u0022content\u0022:{\u0022text\u0022:\u0022\u0022},\u0022style\u0022:{\u0022tip\u0022:{\u0022width\u0022:15,\u0022height\u0022:15,\u0022border\u0022:1,\u0022mimic\u0022:\u0022top center\u0022,\u0022offset\u0022:0,\u0022corner\u0022:true},\u0022classes\u0022:\u0022qtip-custom hw-tooltip hw-ref-link-tooltip qtip-shadow qtip-rounded\u0022,\u0022classes_custom\u0022:\u0022hw-tooltip hw-ref-link-tooltip\u0022},\u0022position\u0022:{\u0022at\u0022:\u0022bottom left\u0022,\u0022my\u0022:\u0022top left\u0022,\u0022viewport\u0022:true,\u0022adjust\u0022:{\u0022method\u0022:\u0022flip\u0022}},\u0022show\u0022:{\u0022event\u0022:\u0022mouseenter \u0022,\u0022solo\u0022:true},\u0022hide\u0022:{\u0022event\u0022:\u0022mouseleave \u0022,\u0022fixed\u0022:1,\u0022delay\u0022:\u0022100\u0022}}}","qtipDebug":"{\u0022leaveElement\u0022:0}","urlIsAjaxTrusted":{"\/content\/38\/8\/E53":true},"ws_fl":{"width":100,"height":21},"ws_gpo":{"size":"","annotation":"","lang":"","callback":"","width":300},"highwire_search_similar_articles":{"highwire-search-similar-articles-list-1":{"conf":{"context":"requiredcontext_entity:node_1","override_title":1,"override_title_text":"\u003Ci class=\u0022icon-caret-right\u0022\u003E\u003C\/i\u003E Similar Articles","number_per_page":"5","show_pager":0,"more_link_path":"similar\/articles","more_link":1,"empty_message":"No similar articles are available.","citation_style":"jcore_standard","title_type":"prefer_short","title_as_link":0,"display_subtitle":0,"choose_pubdate":"ppubdate","display_markup_snippet":"","display_original_link":0,"display_access_indicator":0,"display_cme_link":0,"display_access_indicator_text":0,"display_highlight_image":"0","display_variants":0,"display_supplements":0,"display_abstract_tooltip":0,"display_author_tooltip":0,"override_title_heading":"h2","citation_settings_source":"citation_manager","citation_manager_wrapper":{"citation_manager_citation":"jcore_list_title_only"},"corpus_config_wrapper":{"corpus_config_citation_context":[]},"cache_enabled":1,"cache_time":"600","short_title_options":{"char_count":"50","add_ellipsis":0},"access_indicator_settings":{"open_access":{"icon":"icon-unlock","title":"Open Access"},"user_access":{"icon":"icon-ok-sign","title":"You have access"},"no_access":{"icon":"icon-lock","title":"Restricted access"}},"pdf_download":{"display_pdf_download":0,"pdf_download_icon":"icon-cloud-download","pdf_download_text":"PDF"},"include_on_behalf":1,"show_mark_citation":0,"display_infotrieve_link":0,"infotrieve_link_settings":{"icon":"icon-usd","link_caption":"Order full text via Infotrieve"},"highlight_image_style":"","featured_image_variant":"large","featured_image_click_image":"colorbox","display_google_scholar_tooltip":1,"display_pubmed_tooltip":1,"display_advanced_search_tooltip":1,"display_author_landing_page_tooltip":1,"display_orcid_tooltip":0,"display_ads_search_tooltip":0,"display_agricola_tooltip":0,"author_site_search_path":"","display_translations":0,"display_translations_text":"","display_translations_text_icon":"","bundle_overrides_checkboxes":{"highwire_book_fragment":{"selector":0},"highwire_news_story":{"selector":0},"highwire_book_edition":{"selector":0},"highwire_article":{"selector":0},"highwire_issue":{"selector":0},"highwire_comment":{"selector":0},"highwire_fragment":{"selector":0},"highwire_book_section":{"selector":0},"highwire_journal":{"selector":0}},"bundle_overrides":{"highwire_book_fragment":{"selector":0,"citation_style":"jcore_title_and_author","cache_enabled":1,"cache_time":"600","title_type":"full","short_title_options":{"char_count":"50","add_ellipsis":0},"title_as_link":0,"display_subtitle":0,"choose_pubdate":"ppubdate","display_markup_snippet":"","highlight_image_toggle":0,"display_original_link":0,"display_access_indicator":"0","access_indicator_settings":{"open_access":{"icon":"icon-unlock","title":"Open Access"},"user_access":{"icon":"icon-ok-sign","title":"You have access"},"no_access":{"icon":"icon-lock","title":"Restricted access"}},"display_variants":0,"display_supplements":0,"pdf_download":{"display_pdf_download":0,"pdf_download_icon":"icon-cloud-download","pdf_download_text":"PDF"},"include_on_behalf":1,"cpath_prefix":"\/content","show_mark_citation":0,"display_infotrieve_link":0,"infotrieve_link_settings":{"icon":"icon-usd","link_caption":"Order full text via Infotrieve"},"display_highlight_image":0,"highlight_image_style":"thumbnail","display_fragment_caption":1,"display_parent_citation":1,"parent_citation_type":"highwire_book_section","parent_citation_settings":{"citation_style":"folio_book_sections_standard","cache_enabled":1,"cache_time":"600","title_type":"full","short_title_options":{"char_count":"50","add_ellipsis":0},"title_as_link":0,"display_subtitle":0,"choose_pubdate":"ppubdate","display_markup_snippet":"","highlight_image_toggle":0,"display_original_link":0,"display_access_indicator":0,"access_indicator_settings":{"open_access":{"icon":"icon-unlock","title":"Open Access"},"user_access":{"icon":"icon-ok-sign","title":"You have access"},"no_access":{"icon":"icon-lock","title":"Restricted access"}},"display_variants":0,"display_supplements":0,"pdf_download":{"display_pdf_download":0,"pdf_download_icon":"icon-cloud-download","pdf_download_text":"PDF"},"include_on_behalf":1,"cpath_prefix":"\/content","show_mark_citation":0,"display_infotrieve_link":0,"infotrieve_link_settings":{"icon":"icon-usd","link_caption":"Order full text via Infotrieve"},"display_highlight_image":0,"highlight_image_style":"","display_abstract_tooltip":0,"display_author_tooltip":0,"display_google_scholar_tooltip":1,"display_pubmed_tooltip":1,"display_advanced_search_tooltip":1,"display_author_landing_page_tooltip":0,"author_site_search_path":"search\/"}},"highwire_news_story":{"selector":0,"citation_style":"mla","cache_enabled":1,"cache_time":"600","title_type":"full","short_title_options":{"char_count":"50","add_ellipsis":0},"title_as_link":0,"display_subtitle":0,"choose_pubdate":"ppubdate","display_markup_snippet":"","highlight_image_toggle":0,"display_original_link":0,"display_access_indicator":0,"access_indicator_settings":{"open_access":{"icon":"icon-unlock","title":"Open Access"},"user_access":{"icon":"icon-ok-sign","title":"You have access"},"no_access":{"icon":"icon-lock","title":"Restricted access"}},"display_variants":0,"display_supplements":0,"pdf_download":{"display_pdf_download":0,"pdf_download_icon":"icon-cloud-download","pdf_download_text":"PDF"},"include_on_behalf":1,"cpath_prefix":"\/content","show_mark_citation":0,"display_infotrieve_link":0,"infotrieve_link_settings":{"icon":"icon-usd","link_caption":"Order full text via Infotrieve"},"display_highlight_image":"0","highlight_image_style":"","featured_image_click_image":"nothing","display_author_tooltip":0,"display_google_scholar_tooltip":0,"display_pubmed_tooltip":0,"display_advanced_search_tooltip":0},"highwire_book_edition":{"selector":0,"citation_style":"folio_books_standard","cache_enabled":1,"cache_time":"600","title_type":"full","short_title_options":{"char_count":"50","add_ellipsis":0},"title_as_link":0,"display_subtitle":0,"choose_pubdate":"ppubdate","display_markup_snippet":"","highlight_image_toggle":0,"display_original_link":0,"display_access_indicator":0,"access_indicator_settings":{"open_access":{"icon":"icon-unlock","title":"Open Access"},"user_access":{"icon":"icon-ok-sign","title":"You have access"},"no_access":{"icon":"icon-lock","title":"Restricted access"}},"display_variants":0,"display_supplements":0,"pdf_download":{"display_pdf_download":0,"pdf_download_icon":"icon-cloud-download","pdf_download_text":"PDF"},"include_on_behalf":1,"cpath_prefix":"\/content","show_mark_citation":0,"display_infotrieve_link":0,"infotrieve_link_settings":{"icon":"icon-usd","link_caption":"Order full text via Infotrieve"},"display_highlight_image":0,"highlight_image_style":"","display_author_tooltip":0,"display_google_scholar_tooltip":1,"display_pubmed_tooltip":1,"display_advanced_search_tooltip":1,"display_author_landing_page_tooltip":1,"display_orcid_tooltip":1,"author_site_search_path":"search\/"},"highwire_article":{"selector":0,"citation_style":"mla","cache_enabled":1,"cache_time":"600","title_type":"full","short_title_options":{"char_count":"50","add_ellipsis":0},"title_as_link":0,"display_subtitle":0,"choose_pubdate":"ppubdate","display_markup_snippet":"","highlight_image_toggle":0,"display_original_link":0,"display_access_indicator":0,"access_indicator_settings":{"open_access":{"icon":"icon-unlock","title":"Open Access"},"user_access":{"icon":"icon-ok-sign","title":"You have access"},"no_access":{"icon":"icon-lock","title":"Restricted access"}},"display_variants":0,"display_supplements":0,"pdf_download":{"display_pdf_download":0,"pdf_download_icon":"icon-cloud-download","pdf_download_text":"PDF"},"include_on_behalf":0,"cpath_prefix":"\/content","show_mark_citation":0,"display_infotrieve_link":0,"infotrieve_link_settings":{"icon":"icon-usd","link_caption":"Order full text via Infotrieve"},"display_highlight_image":"0","highlight_image_style":"","featured_image_variant":"large","featured_image_click_image":"nothing","display_cme_link":0,"display_abstract_tooltip":0,"display_author_tooltip":0,"display_google_scholar_tooltip":1,"display_pubmed_tooltip":1,"display_advanced_search_tooltip":1,"display_author_landing_page_tooltip":1,"display_orcid_tooltip":1,"display_ads_search_tooltip":0,"display_agricola_tooltip":0,"author_site_search_path":"search\/","display_translations":0,"display_translations_text":"Translations Available","display_translations_text_icon":"icon-globe"},"highwire_issue":{"selector":0,"citation_style":"mla","cache_enabled":1,"cache_time":"600","title_type":"full","short_title_options":{"char_count":"50","add_ellipsis":0},"title_as_link":0,"display_subtitle":0,"choose_pubdate":"ppubdate","display_markup_snippet":"","highlight_image_toggle":0,"display_original_link":0,"display_access_indicator":0,"access_indicator_settings":{"open_access":{"icon":"icon-unlock","title":"Open Access"},"user_access":{"icon":"icon-ok-sign","title":"You have access"},"no_access":{"icon":"icon-lock","title":"Restricted access"}},"display_variants":0,"display_supplements":0,"pdf_download":{"display_pdf_download":0,"pdf_download_icon":"icon-cloud-download","pdf_download_text":"PDF"},"include_on_behalf":1,"cpath_prefix":"\/content","show_mark_citation":0,"display_infotrieve_link":0,"infotrieve_link_settings":{"icon":"icon-usd","link_caption":"Order full text via Infotrieve"},"display_highlight_image":0,"highlight_image_style":"","featured_image_click_image":"nothing","display_author_tooltip":0,"display_google_scholar_tooltip":1,"display_pubmed_tooltip":1,"display_advanced_search_tooltip":1,"display_author_landing_page_tooltip":0,"display_orcid_tooltip":1,"author_site_search_path":"search\/"},"highwire_comment":{"selector":0,"citation_style":"highwire_comment","show_title":0,"title_as_link":0,"title_as_link_type":"tab_view","author_format_type":"fullname","author_format_custom":"","author_list_separator":", ","date_format":"(j F Y)","display_comment_body":1,"display_attachment":1,"display_conflict_of_interest":1},"highwire_fragment":{"selector":0,"citation_style":"jcore_title_and_author","cache_enabled":1,"cache_time":"600","title_type":"full","short_title_options":{"char_count":"50","add_ellipsis":0},"title_as_link":0,"display_subtitle":0,"choose_pubdate":"ppubdate","display_markup_snippet":"","highlight_image_toggle":0,"display_original_link":0,"display_access_indicator":"0","access_indicator_settings":{"open_access":{"icon":"icon-unlock","title":"Open Access"},"user_access":{"icon":"icon-ok-sign","title":"You have access"},"no_access":{"icon":"icon-lock","title":"Restricted access"}},"display_variants":0,"display_supplements":0,"pdf_download":{"display_pdf_download":0,"pdf_download_icon":"icon-cloud-download","pdf_download_text":"PDF"},"include_on_behalf":1,"cpath_prefix":"\/content","show_mark_citation":0,"display_infotrieve_link":0,"infotrieve_link_settings":{"icon":"icon-usd","link_caption":"Order full text via Infotrieve"},"display_highlight_image":0,"highlight_image_style":"","display_fragment_caption":1,"fragment_image_settings":{"fragment_image_variant":"medium","fragment_click_image":"colorbox","show_download_links":1},"display_parent_citation":1,"parent_citation_type":"highwire_article","parent_citation_settings":{"citation_style":"mla","cache_enabled":1,"cache_time":"600","title_type":"full","short_title_options":{"char_count":"50","add_ellipsis":0},"title_as_link":0,"display_subtitle":0,"choose_pubdate":"ppubdate","display_markup_snippet":"","highlight_image_toggle":0,"display_original_link":0,"display_access_indicator":0,"access_indicator_settings":{"open_access":{"icon":"icon-unlock","title":"Open Access"},"user_access":{"icon":"icon-ok-sign","title":"You have access"},"no_access":{"icon":"icon-lock","title":"Restricted access"}},"display_variants":0,"display_supplements":0,"pdf_download":{"display_pdf_download":0,"pdf_download_icon":"icon-cloud-download","pdf_download_text":"PDF"},"include_on_behalf":0,"cpath_prefix":"\/content","show_mark_citation":0,"display_infotrieve_link":0,"infotrieve_link_settings":{"icon":"icon-usd","link_caption":"Order full text via Infotrieve"},"display_highlight_image":"0","highlight_image_style":"","featured_image_variant":"large","featured_image_click_image":"nothing","display_cme_link":0,"display_abstract_tooltip":0,"display_author_tooltip":0,"display_google_scholar_tooltip":1,"display_pubmed_tooltip":1,"display_advanced_search_tooltip":1,"display_author_landing_page_tooltip":1,"display_orcid_tooltip":1,"display_ads_search_tooltip":0,"display_agricola_tooltip":0,"author_site_search_path":"search\/","display_translations":0,"display_translations_text":"Translations Available","display_translations_text_icon":"icon-globe"}},"highwire_book_section":{"selector":0,"citation_style":"folio_book_sections_standard","cache_enabled":1,"cache_time":"600","title_type":"full","short_title_options":{"char_count":"50","add_ellipsis":0},"title_as_link":0,"display_subtitle":0,"choose_pubdate":"ppubdate","display_markup_snippet":"","highlight_image_toggle":0,"display_original_link":0,"display_access_indicator":0,"access_indicator_settings":{"open_access":{"icon":"icon-unlock","title":"Open Access"},"user_access":{"icon":"icon-ok-sign","title":"You have access"},"no_access":{"icon":"icon-lock","title":"Restricted access"}},"display_variants":0,"display_supplements":0,"pdf_download":{"display_pdf_download":0,"pdf_download_icon":"icon-cloud-download","pdf_download_text":"PDF"},"include_on_behalf":1,"cpath_prefix":"\/content","show_mark_citation":0,"display_infotrieve_link":0,"infotrieve_link_settings":{"icon":"icon-usd","link_caption":"Order full text via Infotrieve"},"display_highlight_image":0,"highlight_image_style":"","display_abstract_tooltip":0,"display_author_tooltip":0,"display_google_scholar_tooltip":1,"display_pubmed_tooltip":1,"display_advanced_search_tooltip":1,"display_author_landing_page_tooltip":0,"author_site_search_path":"search\/"},"highwire_journal":{"selector":0,"citation_style":"mla","cache_enabled":1,"cache_time":"600","title_type":"full","short_title_options":{"char_count":"50","add_ellipsis":0},"title_as_link":0,"display_subtitle":0,"choose_pubdate":"ppubdate","display_markup_snippet":"","highlight_image_toggle":0,"display_original_link":0,"display_access_indicator":0,"access_indicator_settings":{"open_access":{"icon":"icon-unlock","title":"Open Access"},"user_access":{"icon":"icon-ok-sign","title":"You have access"},"no_access":{"icon":"icon-lock","title":"Restricted access"}},"display_variants":0,"display_supplements":0,"pdf_download":{"display_pdf_download":0,"pdf_download_icon":"icon-cloud-download","pdf_download_text":"PDF"},"include_on_behalf":1,"cpath_prefix":"\/content","show_mark_citation":0,"display_infotrieve_link":0,"infotrieve_link_settings":{"icon":"icon-usd","link_caption":"Order full text via Infotrieve"},"display_highlight_image":0,"highlight_image_style":"","display_author_tooltip":0,"display_google_scholar_tooltip":1,"display_pubmed_tooltip":1,"display_advanced_search_tooltip":1,"display_author_landing_page_tooltip":0,"display_orcid_tooltip":1,"author_site_search_path":"search\/"}},"cpath_prefix":"\/content","ajax_loading_icon_classes":"icon-spinner icon-spin icon-2x","ajax_loading_text":"","highlight_image_toggle":0,"more_link_label":"See more","url_parameters":{"q":"node\/55506"}},"nid":"55506"}},"panels_accordion":{"highwire_article_accordion_container":{"heightStyle":"content","autoHeight":false,"collapsible":0,"region_accordion_id":"highwire_article_accordion_container","active":0,"animated":"slide"}},"color":{"logo":"http:\/\/ajnr-stage2.stage.highwire.org\/sites\/default\/files\/ajnr-web-logo_0.png"},"nice_menus_options":{"delay":800,"speed":"fast"},"highwireResponsive":{"enquire_enabled":1,"breakpoints_configured":1,"breakpoints":{"zero":"all and (min-width: 0px)","xsmall":"all and (min-width: 380px)","narrow":"all and (min-width: 768px) and (min-device-width: 768px), (max-device-width: 800px) and (min-width: 768px) and (orientation:landscape)","normal":"all and (min-width: 980px) and (min-device-width: 980px), all and (max-device-width: 1024px) and (min-width: 1024px) and (orientation:landscape)","wide":"all and (min-width: 1220px)"}},"eu_cookie_compliance":{"popup_enabled":1,"popup_agreed_enabled":0,"popup_hide_agreed":false,"popup_clicking_confirmation":true,"popup_scrolling_confirmation":false,"popup_html_info":"\u003Cdiv\u003E\n  \u003Cdiv class=\u0022popup-content info\u0022\u003E\n    \u003Cdiv id=\u0022popup-text\u0022\u003E\n      \u003Cp\u003EWe use cookies on this site to enhance your user experience. By clicking any link on this page you are giving your consent for us to set cookies.\u003C\/p\u003E\n    \u003C\/div\u003E\n    \u003Cdiv id=\u0022popup-buttons\u0022\u003E\n      \u003Cbutton type=\u0022button\u0022 role=\u0022dialog\u0022 aria-labelledby=\u0022Continue\u0022\n        class=\u0022agree-button eu-cookie-compliance-default-button\u0022\u003EContinue\u003C\/button\u003E\n                  \u003Cbutton type=\u0022button\u0022 role=\u0022dialog\u0022 aria-labelledby=\u0022Find out more\u0022\n        class=\u0022find-more-button eu-cookie-compliance-more-button\u0022\u003EFind out more\u003C\/button\u003E\n          \u003C\/div\u003E\n  \u003C\/div\u003E\n\u003C\/div\u003E","use_mobile_message":false,"mobile_popup_html_info":"\u003Cdiv\u003E\n  \u003Cdiv class=\u0022popup-content info\u0022\u003E\n    \u003Cdiv id=\u0022popup-text\u0022\u003E\n          \u003C\/div\u003E\n    \u003Cdiv id=\u0022popup-buttons\u0022\u003E\n      \u003Cbutton type=\u0022button\u0022 role=\u0022dialog\u0022 aria-labelledby=\u0022Continue\u0022\n        class=\u0022agree-button eu-cookie-compliance-default-button\u0022\u003EContinue\u003C\/button\u003E\n                  \u003Cbutton type=\u0022button\u0022 role=\u0022dialog\u0022 aria-labelledby=\u0022Find out more\u0022\n        class=\u0022find-more-button eu-cookie-compliance-more-button\u0022\u003EFind out more\u003C\/button\u003E\n          \u003C\/div\u003E\n  \u003C\/div\u003E\n\u003C\/div\u003E","mobile_breakpoint":"768","popup_html_agreed":"\u003Cdiv\u003E\n  \u003Cdiv class=\u0022popup-content agreed\u0022\u003E\n    \u003Cdiv id=\u0022popup-text\u0022\u003E\n      \u003Cp\u003EThank you for accepting cookies. You can now hide this message or find out more about cookies.\u003C\/p\u003E\n    \u003C\/div\u003E\n    \u003Cdiv id=\u0022popup-buttons\u0022\u003E\n      \u003Cbutton type=\u0022button\u0022 class=\u0022hide-popup-button eu-cookie-compliance-hide-button\u0022\u003EHide\u003C\/button\u003E\n              \u003Cbutton type=\u0022button\u0022 class=\u0022find-more-button eu-cookie-compliance-more-button-thank-you\u0022 \u003EFind out more\u003C\/button\u003E\n          \u003C\/div\u003E\n  \u003C\/div\u003E\n\u003C\/div\u003E","popup_use_bare_css":false,"popup_height":"auto","popup_width":"100%","popup_delay":1000,"popup_link":"\/help\/cookie-policy","popup_link_new_window":1,"popup_position":null,"popup_language":"en","store_consent":false,"better_support_for_screen_readers":0,"reload_page":0,"domain":"","popup_eu_only_js":0,"cookie_lifetime":365,"cookie_session":false,"disagree_do_not_show_popup":0,"method":"default","whitelisted_cookies":"","withdraw_markup":"\u003Cbutton type=\u0022button\u0022 class=\u0022eu-cookie-withdraw-tab\u0022\u003EPrivacy settings\u003C\/button\u003E\n\u003Cdiv class=\u0022eu-cookie-withdraw-banner\u0022\u003E\n  \u003Cdiv class=\u0022popup-content info\u0022\u003E\n    \u003Cdiv id=\u0022popup-text\u0022\u003E\n      \u003Cp\u003E\u0026lt;h2\u0026gt;We use cookies on this site to enhance your user experience\u0026lt;\/h2\u0026gt;\u0026lt;p\u0026gt;You have given your consent for us to set cookies.\u0026lt;\/p\u0026gt;\u003C\/p\u003E\n    \u003C\/div\u003E\n    \u003Cdiv id=\u0022popup-buttons\u0022\u003E\n      \u003Cbutton type=\u0022button\u0022 class=\u0022eu-cookie-withdraw-button\u0022\u003EWithdraw consent\u003C\/button\u003E\n    \u003C\/div\u003E\n  \u003C\/div\u003E\n\u003C\/div\u003E\n","withdraw_enabled":false},"googleanalytics":{"account":["G-4CRTLTY8KW"],"trackOutbound":1,"trackMailto":1,"trackDownload":1,"trackDownloadExtensions":"7z|aac|arc|arj|asf|asx|avi|bin|csv|doc(x|m)?|dot(x|m)?|exe|flv|gif|gz|gzip|hqx|jar|jpe?g|js|mp(2|3|4|e?g)|mov(ie)?|msi|msp|pdf|phps|png|ppt(x|m)?|pot(x|m)?|pps(x|m)?|ppam|sld(x|m)?|thmx|qtm?|ra(m|r)?|sea|sit|tar|tgz|torrent|txt|wav|wma|wmv|wpd|xls(x|m|b)?|xlt(x|m)|xlam|xml|z|zip","trackColorbox":1},"omega":{"layouts":{"primary":"normal","order":["narrow","normal","wide"],"queries":{"narrow":"all and (min-width: 768px) and (min-device-width: 768px), (max-device-width: 800px) and (min-width: 768px) and (orientation:landscape)","normal":"all and (min-width: 980px) and (min-device-width: 980px), all and (max-device-width: 1024px) and (min-width: 1024px) and (orientation:landscape)","wide":"all and (min-width: 1220px)"}}}});
//--><!]]>
</script>
    <!--[if lt IE 9]><script src="http://html5shiv.googlecode.com/svn/trunk/html5.js"></script><![endif]-->
  </head>
  <body class="html not-front not-logged-in page-node page-node- page-node-55506 node-type-highwire-article context-content hw-default-jcode-ajnr hw-article-type-letter">
<!-- Google Tag Manager -->
<noscript><iframe src="//www.googletagmanager.com/ns.html?id=GTM-MXP45WNH" height="0" width="0" style="display:none;visibility:hidden"></iframe></noscript>
<script type="text/javascript">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0];var j=d.createElement(s);var dl=l!='dataLayer'?'&l='+l:'';j.src='//www.googletagmanager.com/gtm.js?id='+i+dl;j.type='text/javascript';j.async=true;f.parentNode.insertBefore(j,f);})(window,document,'script','dataLayer','GTM-MXP45WNH');</script>
<!-- End Google Tag Manager -->
    <div id="skip-link">
      <a href="#main-content" class="element-invisible element-focusable">Skip to main content</a>
    </div>
    <div class="region region-page-top" id="region-page-top">
  <div class="region-inner region-page-top-inner">
      </div>
</div>    <div class="page clearfix footer-borders panels-page panels-layout-jcore_2col" id="page">
      <header id="section-header" class="section section-header">
  <div id="zone-advertising-top-wrapper" class="zone-wrapper zone-advertising-top-wrapper clearfix">  
  <div id="zone-advertising-top" class="zone zone-advertising-top clearfix container-30">
    <div class="grid-28 suffix-1 prefix-1 region region-ad-top" id="region-ad-top">
  <div class="region-inner region-ad-top-inner">
    <div class="block block-panels-mini mobile-hiddens rtecenter block-jnl-ajnr-ad-leaderboard block-panels-mini-jnl-ajnr-ad-leaderboard odd block-without-title" id="block-panels-mini-jnl-ajnr-ad-leaderboard">
  <div class="block-inner clearfix">
                
    <div class="content clearfix">
      <div class="panel-display panel-1col clearfix" id="mini-panel-jnl_ajnr_ad_leaderboard">
  <div class="panel-panel panel-col">
    <div><div class="panel-pane pane-dfp-pane text-center" >
  
      
  
  <div class="pane-content">
    <div id="dfp-ad-top_leaderboard-wrapper" class="dfp-tag-wrapper">
<div class="slug">Advertisement</div>
<div  id="dfp-ad-top_leaderboard" class="dfp-tag-wrapper">
  <script type="text/javascript">
    googletag.cmd.push(function() {
      googletag.display("dfp-ad-top_leaderboard");
    });
  </script>
</div>
</div>  </div>

  
  </div>
</div>
  </div>
</div>
    </div>
  </div>
</div>  </div>
</div>  </div>
</div><div id="zone-superheader-wrapper" class="zone-wrapper zone-superheader-wrapper clearfix mobile-only print-hidden">  
  <div id="zone-superheader" class="zone zone-superheader clearfix mobile-only print-hidden container-30">
    <div class="grid-30 region region-superheader" id="region-superheader">
  <div class="region-inner region-superheader-inner">
    <div class="block block-panels-mini block-responsive-menu block-panels-mini-responsive-menu odd block-without-title" id="block-panels-mini-responsive-menu">
  <div class="block-inner clearfix">
                
    <div class="content clearfix">
      <div class="panel-display panel-1col clearfix" id="mini-panel-responsive_menu">
  <div class="panel-panel panel-col">
    <div><div id="unique-id3" class="highwire-responsive-toggle-group"><div class="panel-pane pane-panels-mini pane-responsive-menu-main-menu" >
  
        <h2 class="pane-title"><span class="icon-reorder"></span><span class="element-invisible">Main menu</span></h2>
    
  
  <div class="pane-content">
    <div class="panel-display panel-1col clearfix" id="mini-panel-responsive_menu_main_menu">
  <div class="panel-panel panel-col">
    <div><div class="panel-pane pane-menu-tree pane-main-menu" >
  
      
  
  <div class="pane-content">
    <div class="menu-block-wrapper menu-block-ctools-main-menu-1 menu-name-main-menu parent-mlid-main-menu:0 menu-level-1">
  <nav class="menubar-nav"><ul class="menu" role="menu"><li class="first leaf menu-mlid-772" role="menuitem"><a href="/" class="" data-icon-position="" data-hide-link-title="0">Home</a></li>
<li class="expanded active-trail menu-mlid-773" role="menuitem"><a href="/content/current" data-hide-link-title="0" class="active active-trail" data-icon-position="">Content</a><nav class="menubar-nav"><ul class="menu" role="menu"><li class="first expanded menu-mlid-774" role="menuitem"><a href="/content/current" data-hide-link-title="0" class="" data-icon-position="">Current Issue</a></li>
<li class="leaf menu-mlid-1747" role="menuitem"><a href="/content/early/preprint" data-hide-link-title="0" class="" data-icon-position="">Publication Preview--Preprint</a></li>
<li class="leaf menu-mlid-775" role="menuitem"><a href="/content/early/recent" data-hide-link-title="0" class="" data-icon-position="">Publication Preview--Ahead of Print</a></li>
<li class="leaf menu-mlid-776" role="menuitem"><a href="/content/by/year" data-hide-link-title="0" class="" data-icon-position="">Past Issue Archive</a></li>
<li class="leaf menu-mlid-900" role="menuitem"><a href="/cow/by/year" data-hide-link-title="0" class="" data-icon-position="">Case of the Week Archive</a></li>
<li class="leaf menu-mlid-1006" role="menuitem"><a href="/cc/by/year" data-hide-link-title="0" class="" data-icon-position="">Classic Case Archive</a></li>
<li class="leaf menu-mlid-901" role="menuitem"><a href="/com/by/year" data-hide-link-title="0" class="" data-icon-position="">Case of the Month Archive</a></li>
<li class="last leaf menu-mlid-1334" role="menuitem"><a href="http://www.ajnr.org/content/covid-19-content-and-resources" data-hide-link-title="0" class="" data-icon-position="">COVID-19 Content and Resources</a></li>
</ul></nav></li>
<li class="expanded menu-mlid-784" role="menuitem"><a href="/content/about-us" class="" data-icon-position="" data-hide-link-title="0">About Us</a><nav class="menubar-nav"><ul class="menu" role="menu"><li class="first leaf menu-mlid-785" role="menuitem"><a href="/page/content/About" data-hide-link-title="0" class="" data-icon-position="">About AJNR</a></li>
<li class="leaf menu-mlid-899" role="menuitem"><a href="https://www.ajnr.org/page/content/Ed-Board" data-hide-link-title="0" class="" data-icon-position="">Editorial Board</a></li>
<li class="last leaf menu-mlid-864" role="menuitem"><a href="http://www.asnr.org" data-hide-link-title="0" target="_blank" class="" data-icon-position="">American Society of Neuroradiology</a></li>
</ul></nav></li>
<li class="expanded menu-mlid-1746" role="menuitem"><a href="/" class="" data-icon-position="" data-hide-link-title="0">For Authors</a><nav class="menubar-nav"><ul class="menu" role="menu"><li class="first leaf menu-mlid-1725" role="menuitem"><a href="https://www.ajnr.org/content/author-policies" data-hide-link-title="0" class="" data-icon-position="">Author Policies</a></li>
<li class="leaf menu-mlid-1856" role="menuitem"><a href="https://www.ajnr.org/preprint_publishing" data-hide-link-title="0" class="" data-icon-position="">Preprint Publishing</a></li>
<li class="last leaf menu-mlid-1726" role="menuitem"><a href="https://www.ajnr.org/content/manuscript-submission-guidelines" data-hide-link-title="0" class="" data-icon-position="">Manuscript Submission Guidelines</a></li>
</ul></nav></li>
<li class="leaf menu-mlid-862" role="menuitem"><a href="https://mc.manuscriptcentral.com/ajnr" data-hide-link-title="0" target="_blank" class="" data-icon-position="">Submit a Manuscript</a></li>
<li class="expanded menu-mlid-1184" role="menuitem"><a href="/content/about-us" data-hide-link-title="0" class="" data-icon-position="">Special Collections</a><nav class="menubar-nav"><ul class="menu" role="menu"><li class="first leaf menu-mlid-1733" role="menuitem"><a href="http://www.ajnr.org/cc/CSF-Spinal-Leak" data-hide-link-title="0" class="" data-icon-position="">Spinal CSF Leak Articles (Jan 2020-June 2024)</a></li>
<li class="leaf menu-mlid-1185" role="menuitem"><a href="http://www.ajnr.org/cc/most-impactful-ajnr-articles" data-hide-link-title="0" class="" data-icon-position="">Most Impactful AJNR Articles</a></li>
<li class="last leaf menu-mlid-1896" role="menuitem"><a href="http://www.ajnr.org/cc/2024-Awards" data-hide-link-title="0" class="" data-icon-position="">2024 AJNR Journal Awards</a></li>
</ul></nav></li>
<li class="last expanded menu-mlid-788" role="menuitem"><a href="/content/advertising" class="" data-icon-position="" data-hide-link-title="0">More</a><nav class="menubar-nav"><ul class="menu" role="menu"><li class="first leaf menu-mlid-780" role="menuitem"><a href="/content/subscriber-help-and-services" data-hide-link-title="0" class="" data-icon-position="">Subscribers</a></li>
<li class="leaf menu-mlid-863" role="menuitem"><a href="https://marketplace.copyright.com/rs-ui-web/mp/details/journal/122810747" data-hide-link-title="0" class="" data-icon-position="">Permissions</a></li>
<li class="leaf menu-mlid-782" role="menuitem"><a href="/page/content/Ads" data-hide-link-title="0" class="" data-icon-position="">Advertisers</a></li>
<li class="leaf menu-mlid-790" role="menuitem"><a href="/alerts" data-hide-link-title="0" class="" data-icon-position="">Alerts</a></li>
<li class="last leaf menu-mlid-791" role="menuitem"><a href="/feedback" class="" data-icon-position="" data-hide-link-title="0">Feedback</a></li>
</ul></nav></li>
</ul></nav></div>
  </div>

  
  </div>
</div>
  </div>
</div>
  </div>

  
  </div>
<div class="panel-pane pane-panels-mini pane-responsive-menu-user-menu" >
  
        <h2 class="pane-title"><span class="icon-gear"></span><span class="element-invisible">User menu</span></h2>
    
  
  <div class="pane-content">
    <div class="panel-display panel-1col clearfix" id="mini-panel-responsive_menu_user_menu">
  <div class="panel-panel panel-col">
    <div><div class="panel-pane pane-menu-tree pane-user-menu" >
  
      
  
  <div class="pane-content">
    <div class="menu-block-wrapper menu-block-ctools-user-menu-1 menu-name-user-menu parent-mlid-user-menu:0 menu-level-1">
  <nav class="menubar-nav"><ul class="menu" role="menu"><li class="first leaf menu-mlid-801" role="menuitem"><a href="/content/subscriber-help-and-services" data-hide-link-title="0" class="" data-icon-position="">Subscribe</a></li>
<li class="leaf menu-mlid-802" role="menuitem"><a href="/alerts" data-hide-link-title="0" class="" data-icon-position="">Alerts</a></li>
<li class="leaf menu-mlid-803" role="menuitem"><a href="/user/login?destination=/content/38/8/E53" class="" data-icon-position="" data-hide-link-title="0">Log in</a></li>
<li class="last leaf menu-mlid-17" role="menuitem"><a href="/user/logout?current=node/55506" class="" data-icon-position="" data-hide-link-title="0">Log out</a></li>
</ul></nav></div>
  </div>

  
  </div>
<div class="panel-separator"></div><div class="panel-pane pane-highwire-user-identities" >
  
      
  
  <div class="pane-content">
    <div class="highwire-user-message" data-separator="|"><span class="highwire-user-institution" data-id-type="institution" data-identity="a%3A2%3A%7Bs%3A4%3A%22show%22%3Bi%3A1%3Bs%3A7%3A%22message%22%3Bs%3A50%3A%22Institution%3A%20%5Bidentity%3Ainstitutional_display_name%5D%22%3B%7D"></span></div>  </div>

  
  </div>
</div>
  </div>
</div>
  </div>

  
  </div>
<div class="panel-pane pane-panels-mini pane-responsive-menu-search" >
  
        <h2 class="pane-title"><span class="icon-search"></span><span class="element-invisible">Search</span></h2>
    
  
  <div class="pane-content">
    <div class="panel-display panel-1col clearfix" id="mini-panel-responsive_menu_search">
  <div class="panel-panel panel-col">
    <div><div class="panel-pane pane-highwire-seach-qsearch-nocontext" >
  
      
  
  <div class="pane-content">
    <form class="highwire-quicksearch button-style-mini button-style-mini" action="/content/38/8/E53" method="post" id="highwire-search-qsearch-nocontext-form" accept-charset="UTF-8"><div><div class="form-item form-item-label-invisible form-type-textfield form-item-keywords">
  <label class="element-invisible" for="quick_search_header_keywords_1961697356">Search for this keyword </label>
 <input placeholder="Search..." type="text" id="quick_search_header_keywords_1961697356" name="keywords" value="" size="60" maxlength="128" class="form-text" />
</div>
<div class="button-wrapper button-mini"><span class="icon-search"></span><input data-icon-only="1" data-font-icon="icon-search" data-icon-position="after" type="submit" id="quick_search_header_submit_1103224688" name="op" value="Search" class="form-submit" /></div><input type="hidden" name="form_build_id" value="form-ubq20jVtPNf0vsU3Ay8hLBoNQLmUAUTDAuFaoSnModg" />
<input type="hidden" name="form_id" value="highwire_search_qsearch_nocontext_form" />
</div></form>  </div>

  
  </div>
<div class="panel-separator"></div><div class="panel-pane pane-custom pane-1 highwire-responsive-advanced-search-link pane-menu-tree" >
  
      
  
  <div class="pane-content">
    <ul class="menu">
  <li><a href="/search" title="Advanced search">Advanced search</a></li>
  </ul>  </div>

  
  </div>
</div>
  </div>
</div>
  </div>

  
  </div>
</div></div>
  </div>
</div>
    </div>
  </div>
</div><div class="block block-panels-mini block-hw-small-logo block-panels-mini-hw-small-logo even block-without-title" id="block-panels-mini-hw-small-logo">
  <div class="block-inner clearfix">
                
    <div class="content clearfix">
      <div class="panel-display panel-1col clearfix" id="mini-panel-hw_small_logo">
  <div class="panel-panel panel-col">
    <div><div class="panel-pane pane-small-logo" >
  
      
  
  <div class="pane-content">
    <a href="/" class="" data-icon-position="" data-hide-link-title="0"><img src="http://ajnr-stage2.stage.highwire.org/sites/default/files/ajnr-logo.png" alt="American Journal of Neuroradiology" title="American Journal of Neuroradiology" /></a>  </div>

  
  </div>
</div>
  </div>
</div>
    </div>
  </div>
</div>  </div>
</div>  </div>
</div><div id="zone-user-wrapper" class="zone-wrapper zone-user-wrapper clearfix mobile-hidden print-hidden">  
  <div id="zone-user" class="zone zone-user clearfix equal-height-container mobile-hidden print-hidden container-30">    
  	    <div class="grid-30 region region-user-second equal-height-element" id="region-user-second">
  <div class="region-inner region-user-second-inner">
    <div class="block block-panels-mini text-right no-margin-bottom block-jnl-ajnr-uid-strng block-panels-mini-jnl-ajnr-uid-strng odd block-without-title" id="block-panels-mini-jnl-ajnr-uid-strng">
  <div class="block-inner clearfix">
                
    <div class="content clearfix">
      <div class="panel-display panel-1col clearfix" id="mini-panel-jnl_ajnr_uid_strng">
  <div class="panel-panel panel-col">
    <div><div class="panel-pane pane-highwire-user-identities" >
  
      
  
  <div class="pane-content">
    <div class="highwire-user-message" data-separator=" | "><span class="highwire-user-institution" data-id-type="institution" data-identity="a%3A2%3A%7Bs%3A4%3A%22show%22%3Bi%3A1%3Bs%3A7%3A%22message%22%3Bs%3A85%3A%22%3Cspan%20class%3D%22narrow-hidden%22%3EInstitution%3A%20%3C%2Fspan%3E%5Bidentity%3Ainstitutional_display_name%5D%22%3B%7D"></span></div>  </div>

  
  </div>
</div>
  </div>
</div>
    </div>
  </div>
</div>  </div>
</div>  </div>
</div>  
  <div id="zone-branding" class="zone zone-branding clearfix mobile-hidden print-display-block container-30">
    <div class="grid-19 prefix-1 region region-branding print-display-block" id="region-branding">
  <div class="region-inner region-branding-inner">
        <div class="branding-data clearfix">
            <div class="logo-img">
        <a href="/" rel="home" class="" data-icon-position="" data-hide-link-title="0"><img alt="American Journal of Neuroradiology" src="http://ajnr-stage2.stage.highwire.org/sites/default/files/ajnr-web-logo_0.png" /></a>      </div>
                        <hgroup class="site-name-slogan element-invisible">        
                                <h2 class="site-name element-invisible"><a href="/" title="Home" class="" data-icon-position="" data-hide-link-title="0">American Journal of Neuroradiology</a></h2>
                              </hgroup>
          </div>
          </div>
</div><div class="grid-9 suffix-1 region region-branding-second print-hidden" id="region-branding-second">
  <div class="region-inner region-branding-second-inner">
    <div class="block block-panels-mini text-right no-margin-bottom block-jnl-ajnr-user-menu block-panels-mini-jnl-ajnr-user-menu odd block-without-title" id="block-panels-mini-jnl-ajnr-user-menu">
  <div class="block-inner clearfix">
                
    <div class="content clearfix">
      <div class="panel-display panel-1col clearfix" id="mini-panel-jnl_ajnr_user_menu">
  <div class="panel-panel panel-col">
    <div><div class="panel-pane pane-block pane-system-user-menu links inline pane-system" >
  
      
  
  <div class="pane-content">
    <nav class="menubar-nav"><ul class="menu" role="menu"><li class="first leaf" role="menuitem"><a href="/content/subscriber-help-and-services" data-hide-link-title="0" class="" data-icon-position="">Subscribe</a></li>
<li class="leaf" role="menuitem"><a href="/alerts" data-hide-link-title="0" class="" data-icon-position="">Alerts</a></li>
<li class="leaf" role="menuitem"><a href="/user/login?destination=/content/38/8/E53" class="" data-icon-position="" data-hide-link-title="0">Log in</a></li>
<li class="last leaf" role="menuitem"><a href="/user/logout?current=node/55506" class="" data-icon-position="" data-hide-link-title="0">Log out</a></li>
</ul></nav>  </div>

  
  </div>
</div>
  </div>
</div>
    </div>
  </div>
</div><div class="block block-panels-mini block-jnl-ajnr-search-box block-panels-mini-jnl-ajnr-search-box even block-without-title" id="block-panels-mini-jnl-ajnr-search-box">
  <div class="block-inner clearfix">
                
    <div class="content clearfix">
      <div class="panel-display panel-1col clearfix" id="mini-panel-jnl_ajnr_search_box">
  <div class="panel-panel panel-col">
    <div><div class="panel-pane pane-highwire-seach-quicksearch no-margin-bottom" >
  
      
  
  <div class="pane-content">
    <form class="highwire-quicksearch button-style-mini button-style-mini" action="/content/38/8/E53" method="post" id="highwire-search-quicksearch-form-0" accept-charset="UTF-8"><div><div class="form-item form-item-label-invisible form-type-textfield form-item-keywords">
  <label class="element-invisible" for="search_rightsidebar_keywords_1117493652">Search for this keyword </label>
 <input placeholder="search" type="text" id="search_rightsidebar_keywords_1117493652" name="keywords" value="" size="60" maxlength="128" class="form-text" />
</div>
<div class="button-wrapper button-mini"><span class="icon-search"></span><input data-icon-only="1" data-font-icon="icon-search" data-icon-position="after" type="submit" id="search_rightsidebar_submit_1165362072" name="op" value="Search" class="form-submit" /></div><input type="hidden" name="form_build_id" value="form-mIwunN6W5yRTKFZiElCrBO7RspWx7aXOy500ZtKyG8A" />
<input type="hidden" name="form_id" value="highwire_search_quicksearch_form_0" />
</div></form>  </div>

  
  </div>
<div class="panel-separator"></div><div class="panel-pane pane-custom pane-2" >
  
      
  
  <div class="pane-content">
    <p><a href="/search">Advanced Search</a></p>  </div>

  
  </div>
</div>
  </div>
</div>
    </div>
  </div>
</div>  </div>
</div>  </div>
  
  <div id="zone-menu" class="zone zone-menu clearfix mobile-hidden container-30">
    <div class="grid-28 suffix-1 prefix-1 region region-menu region-menu-bg-opaque region-menu-no-border" id="region-menu">
  <div class="region-inner region-menu-inner">
        <div class="block block-nice-menus block-1 block-nice-menus-1 odd block-without-title" id="block-nice-menus-1">
  <div class="block-inner clearfix">
                
    <div class="content clearfix">
      <nav class="menubar-nav"><ul class="nice-menu nice-menu-down nice-menu-main-menu" id="nice-menu-1" role="menu"><li class="menu-772 menu-path-front first odd " role="menuitem"><a href="/" class="" data-icon-position="" data-hide-link-title="0">Home</a></li>
<li class="menu-773 menuparent  menu-path-content-current active-trail  even " role="menuitem"><a href="/content/current" data-hide-link-title="0" class="active" data-icon-position="">Content</a><ul role="menu"><li class="menu-774 menu-path-content-current first odd " role="menuitem"><a href="/content/current" data-hide-link-title="0" class="" data-icon-position="">Current Issue</a></li>
<li class="menu-1747 menu-path-content-early-preprint  even " role="menuitem"><a href="/content/early/preprint" data-hide-link-title="0" class="" data-icon-position="">Publication Preview--Preprint</a></li>
<li class="menu-775 menu-path-content-early-recent  odd " role="menuitem"><a href="/content/early/recent" data-hide-link-title="0" class="" data-icon-position="">Publication Preview--Ahead of Print</a></li>
<li class="menu-776 menu-path-content-by-year  even " role="menuitem"><a href="/content/by/year" data-hide-link-title="0" class="" data-icon-position="">Past Issue Archive</a></li>
<li class="menu-900 menu-path-cow-by-year  odd " role="menuitem"><a href="/cow/by/year" data-hide-link-title="0" class="" data-icon-position="">Case of the Week Archive</a></li>
<li class="menu-1006 menu-path-cc-by-year  even " role="menuitem"><a href="/cc/by/year" data-hide-link-title="0" class="" data-icon-position="">Classic Case Archive</a></li>
<li class="menu-901 menu-path-com-by-year  odd " role="menuitem"><a href="/com/by/year" data-hide-link-title="0" class="" data-icon-position="">Case of the Month Archive</a></li>
<li class="menu-1334 menu-path-ajnrorg-content-covid-19-content-and-resources  even last" role="menuitem"><a href="http://www.ajnr.org/content/covid-19-content-and-resources" data-hide-link-title="0" class="" data-icon-position="">COVID-19 Content and Resources</a></li>
</ul></li>
<li class="menu-784 menuparent  menu-path-node-7  odd " role="menuitem"><a href="/content/about-us" class="" data-icon-position="" data-hide-link-title="0">About Us</a><ul role="menu"><li class="menu-785 menu-path-node-935 first odd " role="menuitem"><a href="/page/content/About" data-hide-link-title="0" class="" data-icon-position="">About AJNR</a></li>
<li class="menu-899 menu-path-sajnrorg-page-content-ed-board  even " role="menuitem"><a href="https://www.ajnr.org/page/content/Ed-Board" data-hide-link-title="0" class="" data-icon-position="">Editorial Board</a></li>
<li class="menu-864 menu-path-asnrorg  odd last" role="menuitem"><a href="http://www.asnr.org" data-hide-link-title="0" target="_blank" class="" data-icon-position="">American Society of Neuroradiology</a></li>
</ul></li>
<li class="menu-1746 menuparent  menu-path-front  even " role="menuitem"><a href="/" class="" data-icon-position="" data-hide-link-title="0">For Authors</a><ul role="menu"><li class="menu-1725 menu-path-sajnrorg-content-author-policies first odd " role="menuitem"><a href="https://www.ajnr.org/content/author-policies" data-hide-link-title="0" class="" data-icon-position="">Author Policies</a></li>
<li class="menu-1856 menu-path-sajnrorg-preprint-publishing  even " role="menuitem"><a href="https://www.ajnr.org/preprint_publishing" data-hide-link-title="0" class="" data-icon-position="">Preprint Publishing</a></li>
<li class="menu-1726 menu-path-sajnrorg-content-manuscript-submission-guidelines  odd last" role="menuitem"><a href="https://www.ajnr.org/content/manuscript-submission-guidelines" data-hide-link-title="0" class="" data-icon-position="">Manuscript Submission Guidelines</a></li>
</ul></li>
<li class="menu-862 menu-path-smcmanuscriptcentralcom-ajnr  odd " role="menuitem"><a href="https://mc.manuscriptcentral.com/ajnr" data-hide-link-title="0" target="_blank" class="" data-icon-position="">Submit a Manuscript</a></li>
<li class="menu-1184 menuparent  menu-path-node-7  even " role="menuitem"><a href="/content/about-us" data-hide-link-title="0" class="" data-icon-position="">Special Collections</a><ul role="menu"><li class="menu-1733 menu-path-ajnrorg-cc-csf-spinal-leak first odd " role="menuitem"><a href="http://www.ajnr.org/cc/CSF-Spinal-Leak" data-hide-link-title="0" class="" data-icon-position="">Spinal CSF Leak Articles (Jan 2020-June 2024)</a></li>
<li class="menu-1185 menu-path-ajnrorg-cc-most-impactful-ajnr-articles  even " role="menuitem"><a href="http://www.ajnr.org/cc/most-impactful-ajnr-articles" data-hide-link-title="0" class="" data-icon-position="">Most Impactful AJNR Articles</a></li>
<li class="menu-1896 menu-path-ajnrorg-cc-2024-awards  odd last" role="menuitem"><a href="http://www.ajnr.org/cc/2024-Awards" data-hide-link-title="0" class="" data-icon-position="">2024 AJNR Journal Awards</a></li>
</ul></li>
<li class="menu-788 menuparent  menu-path-node-9  odd last" role="menuitem"><a href="/content/advertising" class="" data-icon-position="" data-hide-link-title="0">More</a><ul role="menu"><li class="menu-780 menu-path-node-960 first odd " role="menuitem"><a href="/content/subscriber-help-and-services" data-hide-link-title="0" class="" data-icon-position="">Subscribers</a></li>
<li class="menu-863 menu-path-smarketplacecopyrightcom-rs-ui-web-mp-details-journal-122810747  even " role="menuitem"><a href="https://marketplace.copyright.com/rs-ui-web/mp/details/journal/122810747" data-hide-link-title="0" class="" data-icon-position="">Permissions</a></li>
<li class="menu-782 menu-path-node-937  odd " role="menuitem"><a href="/page/content/Ads" data-hide-link-title="0" class="" data-icon-position="">Advertisers</a></li>
<li class="menu-790 menu-path-alerts  even " role="menuitem"><a href="/alerts" data-hide-link-title="0" class="" data-icon-position="">Alerts</a></li>
<li class="menu-791 menu-path-node-10  odd last" role="menuitem"><a href="/feedback" class="" data-icon-position="" data-hide-link-title="0">Feedback</a></li>
</ul></li>
</ul></nav>
    </div>
  </div>
</div><div class="block block-menu text-right block-menu-social-media block-menu-menu-social-media even block-without-title" id="block-menu-menu-social-media">
  <div class="block-inner clearfix">
                
    <div class="content clearfix">
      <nav class="menubar-nav"><ul class="menu" role="menu"><li class="first leaf" role="menuitem"><a href="http://www.twitter.com/TheAJNR" target="_blank" class="link-icon-only link-icon"><span class="hw-icon-x-twitter"></span> <span class="title element-invisible">Follow AJNR on Twitter</span></a></li>
<li class="leaf" role="menuitem"><a href="http://www.facebook.com/AmJNeuroradiol" target="_blank" class="link-icon-only link-icon"><span class="icon-facebook-sign icon-2x"></span> <span class="title element-invisible">Visit AJNR on Facebook</span></a></li>
<li class="leaf" role="menuitem"><a href="https://www.instagram.com/the_ajnr/?hl=en" class="link-icon-only link-icon"><span class="icon-instagram icon-2x"></span> <span class="title element-invisible">Follow AJNR on Instagram</span></a></li>
<li class="leaf" role="menuitem"><a href="https://www.linkedin.com/company/american-journal-of-neuroradiology" class="link-icon-only link-icon"><span class="icon-linkedin icon-2x"></span> <span class="title element-invisible">Join AJNR on LinkedIn</span></a></li>
<li class="last leaf" role="menuitem"><a href="/rss" class="link-icon-only link-icon"><span class="icon-rss icon-2x"></span> <span class="title element-invisible">RSS Feeds</span></a></li>
</ul></nav>    </div>
  </div>
</div>  </div>
</div>
  </div>
  
  <div id="zone-header" class="zone zone-header clearfix container-30">
  	      </div>
</header>    
      <section id="section-content" class="section section-content">
    
  <div id="zone-content" class="zone zone-content clearfix container-30">    
        
    <div class="grid-28 suffix-1 prefix-1 region region-content" id="region-content">
  <div class="region-inner region-content-inner">
    <a id="main-content"></a>
                        <div class="block block-system block-main block-system-main odd block-without-title" id="block-system-main">
  <div class="block-inner clearfix">
                
    <div class="content clearfix">
      <div class="panel-display panels-960-layout jcore-2col-layout" >
	  <div class="panel-row-wrapper panel-row-first clearfix">
		
		<div class="top-wrapper">
			<div class="panel-panel panel-region-top">
			  <div class="inside"><div class="panel-pane pane-highwire-article-citation" >
  
      
  
  <div class="pane-content">
    <div class="highwire-article-citation highwire-citation-type-highwire-article node55506--5" data-node-nid="55506" id="top-node-55506--6585975729" data-pisa="ajnr;38/8/E53" data-pisa-master="ajnr;ajnr.A5231" data-apath="/ajnr/38/8/E53.atom" data-hw-author-tooltip-instance="highwire_author_tooltip"><div class="highwire-cite highwire-cite-highwire-article highwire-citation-jcore-article-title-complete clearfix has-author-tooltip highwire-citation-highwire-article-top-a">
  
  
      <div class="highwire-cite-overline"><span  class="highwire-cite-metadata-article-type highwire-cite-metadata">Letter</span></div>
  
      <div class="highwire-cite-access"><span class="highwire-citation-access highwire-citation-access-check" data-pisa-id="ajnr;ajnr.A5231" data-atom-uri="/ajnr/38/8/E53.atom" data-request-view="full"></span></div>
  
      <h1 class="highwire-cite-title" id="page-title">Regarding “What Is the Ideal Core Number for Ultrasonography-Guided Thyroid Biopsy of Cytologically Inconclusive Nodules?”</h1>  
    	<div class="highwire-cite-authors"><span  class="highwire-citation-authors"><span class="highwire-citation-author first" data-delta="0">H.S. Park</span>, <span class="highwire-citation-author" data-delta="1">J.H. Baek</span> and <span class="highwire-citation-author" data-delta="2">N.D. Gyu</span></span></div>
  
    	<div class="highwire-cite-metadata"><span  class="highwire-cite-metadata-journal highwire-cite-metadata">American Journal of Neuroradiology </span><span  class="highwire-cite-metadata-date highwire-cite-metadata">August 2017,  </span><span  class="highwire-cite-metadata-volume highwire-cite-metadata">38 </span><span  class="highwire-cite-metadata-issue highwire-cite-metadata">(8) </span><span  class="highwire-cite-metadata-pages highwire-cite-metadata">E53-E54; </span><span  class="highwire-cite-metadata-doi highwire-cite-metadata">DOI: https://doi.org/10.3174/ajnr.A5231 </span></div>
  
  
  
</div>
<div id="hw-article-author-popups-top-node-55506--6585975729" style="display: none;"><div class="author-tooltip-0"><div class="author-tooltip-name">H.S. Park </div><div class="author-tooltip-affiliation"><span class="author-tooltip-text"><div class='author-affiliation'><span class='nlm-sup'>a</span>Department of Radiology and Research Institute of Radiology
University of Ulsan College of Medicine
Asan Medical Center
Seoul, Korea</div></span></div><ul class="author-tooltip-find-more"><li class="author-tooltip-gs-link first"><a href="/lookup/google-scholar?link_type=googlescholar&amp;gs_type=author&amp;author%5B0%5D=H.S.%2BPark%2B" target="_blank" class="" data-icon-position="" data-hide-link-title="0">Find this author on Google Scholar</a></li><li class="author-tooltip-pubmed-link"><a href="/lookup/external-ref?access_num=Park%20H&amp;link_type=AUTHORSEARCH" target="_blank" class="" data-icon-position="" data-hide-link-title="0">Find this author on PubMed</a></li><li class="author-site-search-link"><a href="/search/author1%3AH.S.%2BPark%2B" rel="nofollow" class="" data-icon-position="" data-hide-link-title="0">Search for this author on this site</a></li><li class="author-orcid-link last"><a href="http://orcid.org/0000-0003-0707-1875" target="_blank" class="" data-icon-position="" data-hide-link-title="0">ORCID record for H.S. Park</a></li></ul></div><div class="author-tooltip-1"><div class="author-tooltip-name">J.H. Baek </div><div class="author-tooltip-affiliation"><span class="author-tooltip-text"><div class='author-affiliation'><span class='nlm-sup'>a</span>Department of Radiology and Research Institute of Radiology
University of Ulsan College of Medicine
Asan Medical Center
Seoul, Korea</div></span></div><ul class="author-tooltip-find-more"><li class="author-tooltip-gs-link first"><a href="/lookup/google-scholar?link_type=googlescholar&amp;gs_type=author&amp;author%5B0%5D=J.H.%2BBaek%2B" target="_blank" class="" data-icon-position="" data-hide-link-title="0">Find this author on Google Scholar</a></li><li class="author-tooltip-pubmed-link"><a href="/lookup/external-ref?access_num=Baek%20J&amp;link_type=AUTHORSEARCH" target="_blank" class="" data-icon-position="" data-hide-link-title="0">Find this author on PubMed</a></li><li class="author-site-search-link"><a href="/search/author1%3AJ.H.%2BBaek%2B" rel="nofollow" class="" data-icon-position="" data-hide-link-title="0">Search for this author on this site</a></li><li class="author-orcid-link last"><a href="http://orcid.org/0000-0003-0480-4754" target="_blank" class="" data-icon-position="" data-hide-link-title="0">ORCID record for J.H. Baek</a></li></ul></div><div class="author-tooltip-2"><div class="author-tooltip-name">N.D. Gyu </div><div class="author-tooltip-affiliation"><span class="author-tooltip-text"><div class='author-affiliation'><span class='nlm-sup'>b</span>Department of Radiology
GangNeung Asan Hospital
Seoul, Korea</div><div class='author-affiliation'><span class='nlm-sup'>c</span>Department of Radiology
Human Medical Imaging and Intervention Center
Seoul, Korea</div></span></div><ul class="author-tooltip-find-more"><li class="author-tooltip-gs-link first"><a href="/lookup/google-scholar?link_type=googlescholar&amp;gs_type=author&amp;author%5B0%5D=N.D.%2BGyu%2B" target="_blank" class="" data-icon-position="" data-hide-link-title="0">Find this author on Google Scholar</a></li><li class="author-tooltip-pubmed-link"><a href="/lookup/external-ref?access_num=Gyu%20N&amp;link_type=AUTHORSEARCH" target="_blank" class="" data-icon-position="" data-hide-link-title="0">Find this author on PubMed</a></li><li class="author-site-search-link"><a href="/search/author1%3AN.D.%2BGyu%2B" rel="nofollow" class="" data-icon-position="" data-hide-link-title="0">Search for this author on this site</a></li><li class="author-orcid-link last"><a href="http://orcid.org/0000-0001-6422-1652" target="_blank" class="" data-icon-position="" data-hide-link-title="0">ORCID record for N.D. Gyu</a></li></ul></div></div></div>  </div>

  
  </div>
</div>
			</div>
		</div>
	
	</div> <!-- /.panel-row-wrapper -->	
	  
  <div class="panel-row-wrapper clearfix">
		
		<div class="main-content-wrapper grid-17 suffix-1 alpha">
			<div class="panel-panel panel-region-content">
			  <div class="inside"><div class="panel-pane pane-highwire-panel-tabs pane-panels-ajax-tab-tabs" >
  
      
  
  <div class="pane-content">
    <div class="item-list"><ul class="tabs inline panels-ajax-tab"><li class="first"><a href="/content/38/8/E53" class="panels-ajax-tab-tab" data-panel-name="jnl_ajnr_tab_art" data-target-id="highwire_article_tabs" data-entity-context="node:55506" data-trigger="" data-url-enabled="1">Article</a><a href="/panels_ajax_tab/jnl_ajnr_tab_art/node:55506/1" rel="nofollow" style="display:none" class="js-crawler-link"></a></li><li><a href="/content/38/8/E53/tab-references" class="panels-ajax-tab-tab" data-panel-name="jnl_ajnr_tab_refs" data-target-id="highwire_article_tabs" data-entity-context="node:55506" data-trigger="tab-references" data-url-enabled="1">References</a><a href="/panels_ajax_tab/jnl_ajnr_tab_refs/node:55506/1" rel="nofollow" style="display:none" class="js-crawler-link"></a></li><li><a href="/content/38/8/E53/tab-article-info" class="panels-ajax-tab-tab" data-panel-name="jnl_ajnr_tab_info" data-target-id="highwire_article_tabs" data-entity-context="node:55506" data-trigger="tab-article-info" data-url-enabled="1">Info &amp; Metrics</a><a href="/panels_ajax_tab/jnl_ajnr_tab_info/node:55506/1" rel="nofollow" style="display:none" class="js-crawler-link"></a></li><li class="last"><a href="/content/ajnr/38/8/E53.full.pdf" class="panels-ajax-tab-tab" data-panel-name="jnl_ajnr_tab_pdf" data-target-id="highwire_article_tabs" data-entity-context="node:55506" data-trigger="tab-pdf" data-url-enabled="1"><i class="icon-file-alt"></i> PDF</a><a href="/panels_ajax_tab/jnl_ajnr_tab_pdf/node:55506/1" rel="nofollow" style="display:none" class="js-crawler-link"></a></li></ul></div>  </div>

  
  </div>
<div class="panel-separator"></div><div class="panel-pane pane-highwire-panel-tabs-container" >
  
      
  
  <div class="pane-content">
    <div data-panels-ajax-tab-preloaded="jnl_ajnr_tab_art" id="panels-ajax-tab-container-highwire_article_tabs" class="panels-ajax-tab-container"><div class="panels-ajax-tab-loading" style ="display:none"><img class="loading" src="http://ajnr-stage2.stage.highwire.org/sites/all/modules/contrib/panels_ajax_tab/images/loading.gif" alt="Loading" title="Loading" /></div><div class="panels-ajax-tab-wrap-jnl_ajnr_tab_art"><div class="panel-display panel-1col clearfix" >
  <div class="panel-panel panel-col">
    <div><div class="panel-pane pane-highwire-markup" >
  
      
  
  <div class="pane-content">
    <div class="highwire-markup"><div xmlns="http://www.w3.org/1999/xhtml" data-highwire-cite-ref-tooltip-instance="highwire_reflinks_tooltip" class="content-block-markup" xmlns:xhtml="http://www.w3.org/1999/xhtml"><div class="article fulltext-view "><span class="highwire-journal-article-marker-start"></span><p id="p-1">We read with great interest the article “What Is the Ideal Core Number for Ultrasonography-Guided Thyroid Biopsy of Cytologically Inconclusive Nodules?” by Hahn et al.<sup><a id="xref-ref-1-1" class="xref-bibr" href="#ref-1">1</a></sup> In that study, the authors evaluated the correct number of core-needle specimens for patients with previously inconclusive fine-needle aspiration cytology (FNA) results and suggested that at least 2 core specimens containing intranodular and capsular tissue are necessary for a proper diagnosis. In their results, the diagnostic ability of 2 specimens was found to be higher than that of 1 specimen and was similar to that of 3 specimens. This concept is concordant with that of the recent core-needle biopsy (CNB) guidelines published by the Korean Society of Thyroid Radiology.<sup><a id="xref-ref-2-1" class="xref-bibr" href="#ref-2">2</a></sup> Application of the results of Hahn et al<sup><a id="xref-ref-1-2" class="xref-bibr" href="#ref-1">1</a></sup> will help patients to avoid repeated FNAs or diagnostic surgery. Thanks to the valuable results in CNB skills and pathologic evaluation of core specimens. This study explained comprehensive aspects of the number of core specimens, and this concept had not been reported to date. The authors revealed several important aspects of core biopsy after previously inconclusive FNA results: 1) CNB achieved no nondiagnostic results; 2) the rate of inconclusive results was just 6.7% (4 of 60); 3) the final surgical pathology was well correlated with the core biopsy results; and 4) CNB procedures were tolerable in all patients. Thus, CNB is an effective and safe procedure for patients with previously inconclusive results, and these findings are concordant with those of previous CNB studies.</p><p id="p-2">Although the study of Hahn et al<sup><a id="xref-ref-1-3" class="xref-bibr" href="#ref-1">1</a></sup> obtained informative results, there are 3 points to be considered. The first is the relationship between the number of core specimens and the size of the specimen notch of the core device. Second, capsule information is necessary, especially for diagnosing follicular neoplasm; however, a core technique including the capsule is not recommended in all patients, especially those with suspected papillary thyroid cancers. Finally, to justify 2 core specimens, the complications of the 3 groups should be compared. Regarding the relationship between the core specimen number and the size of the specimen notch of the core device, a core device with a large specimen notch requires fewer core specimens. The authors used a 1.1-cm excursion core device, which has a 0.7-cm specimen notch. This obtains a core specimen of approximately 0.7 cm in length. A 1.6-cm excursion core device can obtain a 1.2-cm specimen length, whereas a 2-cm excursion device can obtain a 1.6-cm specimen length. Therefore, 2 specimens obtained by a 1.1-cm device are similar to 1 specimen obtained by a 1.6- or 2-cm core device. In addition, an 18-gauge core device can obtain larger-bore tissue than a 20- or 21-gauge core device. However, complications should be compared among devices with different lengths or thicknesses. Regarding capsule information, capsules can help to diagnose follicular neoplasms. Current CNB guidelines recommend that a nodule capsule be obtained during core biopsy.<sup><a id="xref-ref-2-2" class="xref-bibr" href="#ref-2">2</a></sup> However, capsule information is unnecessary for the diagnosis of papillary thyroid cancers. Therefore, the use of an extra core biopsy should be restricted to certain types of thyroid nodules. Suh et al<sup><a id="xref-ref-3-1" class="xref-bibr" href="#ref-3">3</a></sup> performed less than 2 core biopsy, but inconclusive results is not high in their factor analysis. Multiple biopsies can cause more complications; this issue should be considered during CNB procedures. To minimize complications, the operators performing CNB should understand the basic techniques and perithyroidal structures.<sup><a id="xref-ref-4-1" class="xref-bibr" href="#ref-4">4</a></sup></p><p id="p-3">In conclusion, Hahn et al<sup><a id="xref-ref-1-4" class="xref-bibr" href="#ref-1">1</a></sup> have reported valuable results on the number of core specimens needed for patients with previously inconclusive FNA results in thyroid biopsy. Although these data are practically important, knowledge of the core device, the relationship between specimen notch and specimen length, the type of thyroid nodule, and possible complications is essential for operators to perform thyroid CNB.</p><div class="section fn-group" id="fn-group-1"><h2>Footnotes</h2><ul><li class="fn-financial-disclosure" id="fn-1"><p id="p-4">Disclosures: Jung Hwan Baek—<em>UNRELATED</em>: <em>Consultancy</em>: RFA Company, ATARmed and RF Medical, <em>Comments</em>: since 2017, $2700/year.</p></li></ul></div><div class="section ref-list" id="ref-list-1"><h2 class="">REFERENCES</h2><ol class="cit-list ref-use-labels"><li><span class="ref-label">1.</span><a class="rev-xref-ref" href="#xref-ref-1-1" title="View reference 1. in text" id="ref-1">↵</a><div class="cit ref-cit ref-journal" id="cit-38.8.E53.1" data-doi="10.3174/ajnr.A5075"><div class="cit-metadata"><ol class="cit-auth-list"><li>
</li><li><span class="cit-auth"><span class="cit-name-surname">Hahn</span>  <span class="cit-name-given-names">SY</span></span>, </li><li><span class="cit-auth"><span class="cit-name-surname">Shin</span>  <span class="cit-name-given-names">JH</span></span>, </li><li><span class="cit-auth"><span class="cit-name-surname">Oh</span>  <span class="cit-name-given-names">YL</span></span></li></ol><cite>. <span class="cit-article-title">What is the ideal core number for ultrasonography-guided thyroid biopsy of cytologically inconclusive nodules?</span> <abbr class="cit-jnl-abbrev">AJNR Am J Neuroradiol</abbr> <span class="cit-pub-date">2017</span>;<span class="cit-vol">38</span>:<span class="cit-fpage">777</span>–<span class="cit-lpage">81</span><span class="cit-pub-id-sep cit-pub-id-doi-sep"> </span><span class="cit-pub-id cit-pub-id-doi"><span class="cit-pub-id-scheme-doi">doi:</span>10.3174/ajnr.A5075</span><span class="cit-pub-id-sep cit-pub-id-pmid-sep"> </span><span class="cit-pub-id cit-pub-id-pmid"><span class="cit-pub-id-scheme-pmid">pmid:</span>28154123</span></cite></div><div class="cit-extra"><a href="/lookup/ijlink/YTozOntzOjQ6InBhdGgiO3M6MTQ6Ii9sb29rdXAvaWpsaW5rIjtzOjU6InF1ZXJ5IjthOjQ6e3M6ODoibGlua1R5cGUiO3M6NDoiQUJTVCI7czoxMToiam91cm5hbENvZGUiO3M6NDoiYWpuciI7czo1OiJyZXNpZCI7czo4OiIzOC80Lzc3NyI7czo0OiJhdG9tIjtzOjE5OiIvYWpuci8zOC84L0U1My5hdG9tIjt9czo4OiJmcmFnbWVudCI7czowOiIiO30=" class="cit-ref-sprinkles cit-ref-sprinkles-ijlink"><span><span class="cit-reflinks-abstract">Abstract</span><span class="cit-sep cit-reflinks-variant-name-sep">/</span><span class="cit-reflinks-full-text"><span class="free-full-text">FREE </span>Full Text</span></span></a></div></div></li><li><span class="ref-label">2.</span><a class="rev-xref-ref" href="#xref-ref-2-1" title="View reference 2. in text" id="ref-2">↵</a><div class="cit ref-cit ref-journal" id="cit-38.8.E53.2" data-doi="10.3348/kjr.2017.18.1.217"><div class="cit-metadata"><ol class="cit-auth-list"><li>
</li><li><span class="cit-auth"><span class="cit-name-surname">Na</span>  <span class="cit-name-given-names">DG</span></span>, </li><li><span class="cit-auth"><span class="cit-name-surname">Baek</span>  <span class="cit-name-given-names">JH</span></span>, </li><li><span class="cit-auth"><span class="cit-name-surname">Jung</span>  <span class="cit-name-given-names">SL</span></span>, <span class="cit-etal">et al</span></li></ol><cite>. <span class="cit-article-title">Core needle biopsy of the thyroid: 2016 consensus statement and recommendations from Korean Society of Thyroid Radiology</span>. <abbr class="cit-jnl-abbrev">Korean J Radiol</abbr> <span class="cit-pub-date">2017</span>;<span class="cit-vol">18</span>:<span class="cit-fpage">217</span>–<span class="cit-lpage">37</span><span class="cit-pub-id-sep cit-pub-id-doi-sep"> </span><span class="cit-pub-id cit-pub-id-doi"><span class="cit-pub-id-scheme-doi">doi:</span>10.3348/kjr.2017.18.1.217</span><span class="cit-pub-id-sep cit-pub-id-pmid-sep"> </span><span class="cit-pub-id cit-pub-id-pmid"><span class="cit-pub-id-scheme-pmid">pmid:</span>28096731</span></cite></div><div class="cit-extra"><a href="/lookup/external-ref?access_num=10.3348/kjr.2017.18.1.217&amp;link_type=DOI" class="cit-ref-sprinkles cit-ref-sprinkles-doi cit-ref-sprinkles-crossref"><span>CrossRef</span></a><a href="/lookup/external-ref?access_num=28096731&amp;link_type=MED&amp;atom=%2Fajnr%2F38%2F8%2FE53.atom" class="cit-ref-sprinkles cit-ref-sprinkles-medline"><span>PubMed</span></a></div></div></li><li><span class="ref-label">3.</span><a class="rev-xref-ref" href="#xref-ref-3-1" title="View reference 3. in text" id="ref-3">↵</a><div class="cit ref-cit ref-journal" id="cit-38.8.E53.3" data-doi="10.1089/thy.2015.0404"><div class="cit-metadata"><ol class="cit-auth-list"><li>
</li><li><span class="cit-auth"><span class="cit-name-surname">Suh</span>  <span class="cit-name-given-names">CH</span></span>, </li><li><span class="cit-auth"><span class="cit-name-surname">Baek</span>  <span class="cit-name-given-names">JH</span></span>, </li><li><span class="cit-auth"><span class="cit-name-surname">Lee</span>  <span class="cit-name-given-names">JH</span></span>, <span class="cit-etal">et al</span></li></ol><cite>. <span class="cit-article-title">The role of core-needle biopsy as a first-line diagnostic tool for initially detected thyroid nodules</span>. <abbr class="cit-jnl-abbrev">Thyroid</abbr> <span class="cit-pub-date">2016</span>;<span class="cit-vol">26</span>:<span class="cit-fpage">395</span>–<span class="cit-lpage">403</span><span class="cit-pub-id-sep cit-pub-id-doi-sep"> </span><span class="cit-pub-id cit-pub-id-doi"><span class="cit-pub-id-scheme-doi">doi:</span>10.1089/thy.2015.0404</span><span class="cit-pub-id-sep cit-pub-id-pmid-sep"> </span><span class="cit-pub-id cit-pub-id-pmid"><span class="cit-pub-id-scheme-pmid">pmid:</span>26651390</span></cite></div><div class="cit-extra"><a href="/lookup/external-ref?access_num=10.1089/thy.2015.0404&amp;link_type=DOI" class="cit-ref-sprinkles cit-ref-sprinkles-doi cit-ref-sprinkles-crossref"><span>CrossRef</span></a><a href="/lookup/external-ref?access_num=26651390&amp;link_type=MED&amp;atom=%2Fajnr%2F38%2F8%2FE53.atom" class="cit-ref-sprinkles cit-ref-sprinkles-medline"><span>PubMed</span></a></div></div></li><li><span class="ref-label">4.</span><a class="rev-xref-ref" href="#xref-ref-4-1" title="View reference 4. in text" id="ref-4">↵</a><div class="cit ref-cit ref-journal" id="cit-38.8.E53.4" data-doi="10.3348/kjr.2015.16.4.749"><div class="cit-metadata"><ol class="cit-auth-list"><li>
</li><li><span class="cit-auth"><span class="cit-name-surname">Ha</span>  <span class="cit-name-given-names">EJ</span></span>, </li><li><span class="cit-auth"><span class="cit-name-surname">Baek</span>  <span class="cit-name-given-names">JH</span></span>, </li><li><span class="cit-auth"><span class="cit-name-surname">Lee</span>  <span class="cit-name-given-names">JH</span></span></li></ol><cite>. <span class="cit-article-title">Ultrasonography-based thyroidal and perithyroidal anatomy and its clinical significance</span>. <abbr class="cit-jnl-abbrev">Korean J Radiol</abbr> <span class="cit-pub-date">2015</span>;<span class="cit-vol">16</span>:<span class="cit-fpage">749</span>–<span class="cit-lpage">66</span><span class="cit-pub-id-sep cit-pub-id-doi-sep"> </span><span class="cit-pub-id cit-pub-id-doi"><span class="cit-pub-id-scheme-doi">doi:</span>10.3348/kjr.2015.16.4.749</span><span class="cit-pub-id-sep cit-pub-id-pmid-sep"> </span><span class="cit-pub-id cit-pub-id-pmid"><span class="cit-pub-id-scheme-pmid">pmid:</span>26175574</span></cite></div><div class="cit-extra"><a href="/lookup/external-ref?access_num=10.3348/kjr.2015.16.4.749&amp;link_type=DOI" class="cit-ref-sprinkles cit-ref-sprinkles-doi cit-ref-sprinkles-crossref"><span>CrossRef</span></a><a href="/lookup/external-ref?access_num=26175574&amp;link_type=MED&amp;atom=%2Fajnr%2F38%2F8%2FE53.atom" class="cit-ref-sprinkles cit-ref-sprinkles-medline"><span>PubMed</span></a></div></div></li></ol></div><ul class="copyright-statement"><li class="fn" id="copyright-statement-1">© 2017 by American Journal of Neuroradiology</li></ul><span class="highwire-journal-article-marker-end"></span></div><span class="related-urls"></span></div></div>  </div>

  
  </div>
<div class="panel-separator"></div><div class="panel-pane pane-highwire-article-trendmd" >
  
      
  
  <div class="pane-content">
    <div id="trendmd-suggestions"></div>  </div>

  
  </div>
</div>
  </div>
</div>
</div></div>  </div>

  
  </div>
<div class="panel-separator"></div><div class="panel-pane pane-highwire-node-pager" >
  
      
  
  <div class="pane-content">
    <div class="pager highwire-pager pager-mini clearfix highwire-node-pager highwire-article-pager"><span class="pager-prev"><a href="/content/38/8/E52" title="REPLY:" rel="prev" class="pager-link-prev link-icon"><span class="icon-circle-arrow-left"></span> <span class="title">Previous</span></a></span><span class="pager-next"><a href="/content/38/8/E55" title="Regarding “Measured Head CT/CTA Skin Dose and Intensive Care Unit Patient Cumulative Exposure”" rel="next" class="pager-link-next link-icon-right link-icon"><span class="title">Next</span> <span class="icon-circle-arrow-right"></span></a></span></div>  </div>

  
  </div>
<div class="panel-separator"></div><div class="panel-pane pane-highwire-back-to-top" >
  
      
  
  <div class="pane-content">
    <a href="#page" class="back-to-top" data-icon-position="" data-hide-link-title="0"><span class="icon-chevron-up"></span> Back to top</a>  </div>

  
  </div>
</div>
			</div>
		</div>
		
		<div class="sidebar-right-wrapper grid-10 omega">
			<div class="panel-panel panel-region-sidebar-right">
			  <div class="inside"><div class="panel-pane pane-panels-mini pane-jnl-ajnr-art-issue pane-style-alt-content" >
  
        <h2 class="pane-title">In this issue</h2>
    
  
  <div class="pane-content">
    <div class="panel-display panel-1col clearfix" id="mini-panel-jnl_ajnr_art_issue">
  <div class="panel-panel panel-col">
    <div><div class="panel-pane pane-highwire-article-citation" >
  
      
  
  <div class="pane-content">
    <div class="highwire-article-citation highwire-citation-type-highwire-issue node55504" data-node-nid="55504" id="node-55504--21844684991" data-pisa="ajnr;38/8" data-pisa-master="ajnr;38/8" data-apath="/ajnr/38/8.atom"><div class="highwire-cite highwire-cite-highwire-issue highwire-citation-jcore-issue-widget clearfix">
    
      <div class="highwire-cite-highlight"><a href="/content/38/8"  class="highlight-image-linked"><img class="highlight-image" src="http://ajnr-stage2.stage.highwire.org/sites/default/files/styles/medium/public/highwire/ajnr/38/8.cover-source.jpg?itok=3XCMiGLj" alt="American Journal of Neuroradiology: 38 (8)" /></a></div>
  
  <div class="highwire-cite-col">
      
      
          <a href="/content/38/8" class="highwire-cite-linked-title" data-icon-position="" data-hide-link-title="0"><span class="highwire-cite-title">American Journal of Neuroradiology</span></a>      
      
        	<div class="highwire-cite-metadata"><span  class="highwire-cite-metadata-volume highwire-cite-metadata">Vol. 38</span>, <span  class="highwire-cite-metadata-issue highwire-cite-metadata">Issue 8 </span><div  class="highwire-cite-metadata-pubdate highwire-cite-metadata">1 Aug 2017 </div></div>
      
      
        	<div class="highwire-cite-extras"><div class='highwire-article-citation-variant-list'><ul class="links variants-list"><li class="toc first"><a href="/content/38/8.toc" class="highwire-variant-link variant-toc " title="Table of Contents" rel="alternate" type="text/html" data-icon-position="" data-hide-link-title="0">Table of Contents</a></li><li class="index-by-author"><a href="/content/38/8.index-by-author" class="highwire-variant-link variant-index-by-author " title="Index by author" rel="alternate" data-icon-position="" data-hide-link-title="0">Index by author</a></li><li class="enclosure-complete-issue last"><a href="/content/ajnr/38/8/local/complete-issue.pdf" class="highwire-variant-link variant-enclosure" title="Complete Issue (PDF)" rel="alternative" data-icon-position="" data-hide-link-title="0">Complete Issue (PDF)</a></li></ul></div></div>
      </div>

</div></div>  </div>

  
  </div>
</div>
  </div>
</div>
  </div>

  
  </div>
<div class="panel-separator"></div><div class="panel-pane pane-panels-mini pane-jnl-ajnr-ad-rhs" >
  
      
  
  <div class="pane-content">
    <div class="panel-display panel-1col clearfix" id="mini-panel-jnl_ajnr_ad_rhs">
  <div class="panel-panel panel-col">
    <div><div class="panel-pane pane-dfp-pane text-center" >
  
      
  
  <div class="pane-content">
    <div id="dfp-ad-rhs-wrapper" class="dfp-tag-wrapper">
<div class="slug">Advertisement</div>
<div  id="dfp-ad-rhs" class="dfp-tag-wrapper">
  <script type="text/javascript">
    googletag.cmd.push(function() {
      googletag.display("dfp-ad-rhs");
    });
  </script>
</div>
</div>  </div>

  
  </div>
</div>
  </div>
</div>
  </div>

  
  </div>
<div class="panel-separator"></div><div class="panel-pane pane-panels-mini pane-jnl-ajnr-art-tools" >
  
      
  
  <div class="pane-content">
    <div id="mini-panel-jnl_ajnr_art_tools" class="highwire-2col-stacked panel-display">
	  
  <div class="panel-row-wrapper clearfix">
		<div class="content-left-wrapper content-column">
          <div class="panel-panel panel-region-content-left">
            <div class="inside"><div class="panel-pane pane-highwire-variant-link" >
  
      
  
  <div class="pane-content">
    <a href="/content/ajnr/38/8/E53.full-text.print" target="_blank" rel="nofollow" class="link-icon"><span class="icon-print"></span> <span class="title">Print</span></a>  </div>

  
  </div>
<div class="panel-pane pane-highwire-variant-link text-no-wrap" >
  
      
  
  <div class="pane-content">
    <a href="/content/ajnr/38/8/E53.full-text.pdf" target="_blank" class="link-icon"><span class="icon-download-alt"></span> <span class="title">Download PDF</span></a>  </div>

  
  </div>
<div class="panel-pane pane-minipanel-dialog-link pane-jnl-ajnr-art-email" >
  
      
  
  <div class="pane-content">
    <div class='minipanel-dialog-wrapper'><div class='minipanel-dialog-link-link'><a href="/" oncontextmenu="javascript: return false;" class="minipanel-dialog-link-trigger link-icon" title="Email this Article"><span class="icon-envelope"></span> <span class="title">Email Article</span></a></div><div class='minipanel-dialog-link-mini' style='display:none'><div class="panel-display panel-1col clearfix" id="mini-panel-jnl_ajnr_art_email">
  <div class="panel-panel panel-col">
    <div><div class="panel-pane pane-block pane-forward-form pane-forward" >
  
      
  
  <div class="pane-content">
    <form action="/content/38/8/E53" method="post" id="forward-form" accept-charset="UTF-8"><div><div id="edit-instructions" class="form-item form-item-label-before form-type-item">
 <p>Thank you for your interest in spreading the word on American Journal of Neuroradiology.</p><p>NOTE: We only request your email address so that the person you are recommending the page to knows that you wanted them to see it, and that it is not junk mail. We do not capture any email address.</p>
</div>
<div class="form-item form-item-label-before form-type-textfield form-item-email">
  <label for="edit-email">Your Email <span class="form-required" title="This field is required.">*</span></label>
 <input type="text" id="edit-email" name="email" value="" size="58" maxlength="256" class="form-text required" />
</div>
<div class="form-item form-item-label-before form-type-textfield form-item-name">
  <label for="edit-name">Your Name <span class="form-required" title="This field is required.">*</span></label>
 <input type="text" id="edit-name" name="name" value="" size="58" maxlength="256" class="form-text required" />
</div>
<div class="form-item form-item-label-before form-type-textarea form-item-recipients">
  <label for="edit-recipients">Send To <span class="form-required" title="This field is required.">*</span></label>
 <div class="form-textarea-wrapper resizable"><textarea id="edit-recipients" name="recipients" cols="50" rows="5" class="form-textarea required"></textarea></div>
<div class="description">Enter multiple addresses on separate lines or separate them with commas.</div>
</div>
<div id="edit-page" class="form-item form-item-label-before form-type-item">
  <label for="edit-page">You are going to email the following </label>
 <a href="/content/38/8/E53" class="active" data-icon-position="" data-hide-link-title="0">Regarding “What Is the Ideal Core Number for Ultrasonography-Guided Thyroid Biopsy of Cytologically Inconclusive Nodules?”</a>
</div>
<div id="edit-subject" class="form-item form-item-label-before form-type-item">
  <label for="edit-subject">Message Subject </label>
 (Your Name) has sent you a message from American Journal of Neuroradiology
</div>
<div id="edit-body" class="form-item form-item-label-before form-type-item">
  <label for="edit-body">Message Body </label>
 (Your Name) thought you would like to see the American Journal of Neuroradiology web site.
</div>
<div class="form-item form-item-label-before form-type-textarea form-item-message">
  <label for="edit-message--2">Your Personal Message </label>
 <div class="form-textarea-wrapper resizable"><textarea id="edit-message--2" name="message" cols="50" rows="10" class="form-textarea"></textarea></div>
</div>
<input type="hidden" name="path" value="node/55506" />
<input type="hidden" name="path_cid" value="" />
<input type="hidden" name="forward_footer" value="" />
<input type="hidden" name="form_build_id" value="form-dJYTbMejsQZi_kfPvlVPo6w12I3vJlxIEOPRE3muY4g" />
<input type="hidden" name="form_id" value="forward_form" />
<fieldset class="captcha form-wrapper"><legend><span class="fieldset-legend">CAPTCHA</span></legend><div class="fieldset-wrapper"><div class="fieldset-description">This question is for testing whether or not you are a human visitor and to prevent automated spam submissions.</div><input type="hidden" name="captcha_sid" value="108762454" />
<input type="hidden" name="captcha_token" value="a8aa839bac296925178bf4ef62006862" />
<input type="hidden" name="captcha_response" value="Google no captcha" />
<div class="g-recaptcha" data-sitekey="6LfnJVIUAAAAAE-bUOMg0MJGki4lqSvDmhJp19fN" data-theme="light" data-type="image"></div></div></fieldset>
<div class="form-actions form-wrapper" id="edit-actions"><input type="submit" id="edit-submit" name="op" value="Send Message" class="form-submit" /></div></div></form>  </div>

  
  </div>
</div>
  </div>
</div>
</div></div>  </div>

  
  </div>
<div class="panel-pane pane-minipanel-dialog-link pane-jnl-ajnr-cite-tool" >
  
      
  
  <div class="pane-content">
    <div class='minipanel-dialog-wrapper'><div class='minipanel-dialog-link-link'><a href="/highwire/citation/55506/download" oncontextmenu="javascript: return false;" class="minipanel-dialog-link-trigger link-icon" title="Citation Tools"><span class="icon-globe"></span> <span class="title">Citation Tools</span></a></div><div class='minipanel-dialog-link-mini' style='display:none'><div class="panel-display panel-1col clearfix" id="mini-panel-jnl_ajnr_cite_tool">
  <div class="panel-panel panel-col">
    <div><div class="panel-pane pane-highwire-citation-export" >
  
      
  
  <div class="pane-content">
    <div class="highwire-citation-export">  
  <div class="highwire-citation-info">
      <div class="highwire-article-citation highwire-citation-type-highwire-article cite-tool-node55506" data-node-nid="55506" id="citation-node-55506--21744323184" data-pisa="ajnr;38/8/E53" data-pisa-master="ajnr;ajnr.A5231" data-apath="/ajnr/38/8/E53.atom"><div class="highwire-cite highwire-cite-highwire-article highwire-citation-jcore-standard clearfix">
  
  
  
  
      <div class="highwire-cite-title">Regarding “What Is the Ideal Core Number for Ultrasonography-Guided Thyroid Biopsy of Cytologically Inconclusive Nodules?”</div>  
    	<div class="highwire-cite-authors"><span  class="highwire-citation-authors"><span class="highwire-citation-author first" data-delta="0"><span class="nlm-given-names">H.S.</span> <span class="nlm-surname">Park</span></span>, <span class="highwire-citation-author" data-delta="1"><span class="nlm-given-names">J.H.</span> <span class="nlm-surname">Baek</span></span>, <span class="highwire-citation-author" data-delta="2"><span class="nlm-given-names">N.D.</span> <span class="nlm-surname">Gyu</span></span></span></div>
  
    	<div class="highwire-cite-metadata"><span  class="highwire-cite-metadata-journal highwire-cite-metadata">American Journal of Neuroradiology </span><span  class="highwire-cite-metadata-date highwire-cite-metadata">Aug 2017, </span><span  class="highwire-cite-metadata-volume highwire-cite-metadata">38 </span><span  class="highwire-cite-metadata-issue highwire-cite-metadata">(8) </span><span  class="highwire-cite-metadata-pages highwire-cite-metadata">E53-E54; </span><span  class="highwire-cite-metadata-doi highwire-cite-metadata"><span class="label">DOI:</span> 10.3174/ajnr.A5231 </span></div>
  
  
  
</div>
</div>  </div>
  <div class="highwire-citation-formats">
  	      <h2>Citation Manager Formats</h2>
        <div class="highwire-citation-formats-links">
      <span class="Z3988" title="ctx_ver=Z39.88-2004&amp;rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&amp;rft.spage=E53&amp;rft.epage=E54&amp;rft.atitle=Regarding%20%E2%80%9CWhat%20Is%20the%20Ideal%20Core%20Number%20for%20Ultrasonography-Guided%20Thyroid%20Biopsy%20of%20Cytologically%20Inconclusive%20Nodules%3F%E2%80%9D&amp;rft.volume=38&amp;rft.issue=8&amp;rft.date=2017-08-01%2000%3A00%3A00&amp;rft.stitle&amp;rft.jtitle=American%20Journal%20of%20Neuroradiology&amp;rft.au=Park%2C+H.S.&amp;rft.au=Baek%2C+J.H.&amp;rft.au=Gyu%2C+N.D."></span><ul class="hw-citation-links inline button button-alt button-grid clearfix"><li class="bibtext first"><a href="/highwire/citation/55506/bibtext" class="hw-download-citation-link" data-icon-position="" data-hide-link-title="0">BibTeX</a></li><li class="bookends"><a href="/highwire/citation/55506/bookends" class="hw-download-citation-link" data-icon-position="" data-hide-link-title="0">Bookends</a></li><li class="easybib"><a href="/highwire/citation/55506/easybib" class="hw-download-citation-link" data-icon-position="" data-hide-link-title="0">EasyBib</a></li><li class="endnote-tagged"><a href="/highwire/citation/55506/endnote-tagged" class="hw-download-citation-link" data-icon-position="" data-hide-link-title="0">EndNote (tagged)</a></li><li class="endnote-8-xml"><a href="/highwire/citation/55506/endnote-8-xml" class="hw-download-citation-link" data-icon-position="" data-hide-link-title="0">EndNote 8 (xml)</a></li><li class="medlars"><a href="/highwire/citation/55506/medlars" class="hw-download-citation-link" data-icon-position="" data-hide-link-title="0">Medlars</a></li><li class="mendeley"><a href="/highwire/citation/55506/mendeley" class="hw-download-citation-link" data-icon-position="" data-hide-link-title="0">Mendeley</a></li><li class="papers"><a href="/highwire/citation/55506/papers" class="hw-download-citation-link" data-icon-position="" data-hide-link-title="0">Papers</a></li><li class="refworks-tagged"><a href="/highwire/citation/55506/refworks-tagged" class="hw-download-citation-link" data-icon-position="" data-hide-link-title="0">RefWorks Tagged</a></li><li class="reference-manager"><a href="/highwire/citation/55506/reference-manager" class="hw-download-citation-link" data-icon-position="" data-hide-link-title="0">Ref Manager</a></li><li class="ris"><a href="/highwire/citation/55506/ris" class="hw-download-citation-link" data-icon-position="" data-hide-link-title="0">RIS</a></li><li class="zotero last"><a href="/highwire/citation/55506/zotero" class="hw-download-citation-link" data-icon-position="" data-hide-link-title="0">Zotero</a></li></ul>    </div>
  </div>
</div>
  </div>

  
  </div>
</div>
  </div>
</div>
</div></div>  </div>

  
  </div>
</div>
          </div>
        </div>
        
        <div class="content-right-wrapper content-column">
          <div class="panel-panel panel-region-content-right">
            <div class="inside"><div class="panel-pane pane-highwire-share-link highwire_clipboard_link_ajax"  id="shareit">
  
      
  
  <div class="pane-content">
    <a href="/" class="link-icon"><span class="icon-share-alt"></span> <span class="title">Share</span></a>  </div>

  
  </div>
<div class="panel-pane pane-panels-mini pane-jnl-ajnr-share highwire_clipboard_form_ajax_shareit" >
  
      
  
  <div class="pane-content">
    <div class="panel-display panel-1col clearfix" id="mini-panel-jnl_ajnr_share">
  <div class="panel-panel panel-col">
    <div><div class="panel-pane pane-highwire-article-citation large-margin-bottom" >
  
      
  
  <div class="pane-content">
    <div class="highwire-article-citation highwire-citation-type-highwire-article node55506--3" data-node-nid="55506" id="share-node-55506--4949931393" data-pisa="ajnr;38/8/E53" data-pisa-master="ajnr;ajnr.A5231" data-apath="/ajnr/38/8/E53.atom"><div class="highwire-cite highwire-cite-highwire-article highwire-citation-jcore-standard clearfix">
  
  
  
  
      <div class="highwire-cite-title">Regarding “What Is the Ideal Core Number for Ultrasonography-Guided Thyroid Biopsy of Cytologically Inconclusive Nodules?”</div>  
    	<div class="highwire-cite-authors"><span  class="highwire-citation-authors"><span class="highwire-citation-author first" data-delta="0"><span class="nlm-given-names">H.S.</span> <span class="nlm-surname">Park</span></span>, <span class="highwire-citation-author" data-delta="1"><span class="nlm-given-names">J.H.</span> <span class="nlm-surname">Baek</span></span>, <span class="highwire-citation-author" data-delta="2"><span class="nlm-given-names">N.D.</span> <span class="nlm-surname">Gyu</span></span></span></div>
  
    	<div class="highwire-cite-metadata"><span  class="highwire-cite-metadata-journal highwire-cite-metadata">American Journal of Neuroradiology </span><span  class="highwire-cite-metadata-date highwire-cite-metadata">Aug 2017, </span><span  class="highwire-cite-metadata-volume highwire-cite-metadata">38 </span><span  class="highwire-cite-metadata-issue highwire-cite-metadata">(8) </span><span  class="highwire-cite-metadata-pages highwire-cite-metadata">E53-E54; </span><span  class="highwire-cite-metadata-doi highwire-cite-metadata"><span class="label">DOI:</span> 10.3174/ajnr.A5231 </span></div>
  
  
  
</div>
</div>  </div>

  
  </div>
<div class="panel-separator"></div><div class="panel-pane pane-highwire-article-clipboard-copy large-margin-bottom" >
  
      
  
  <div class="pane-content">
    <div class = "clipboard-copy">
  <span class="label-url">
    <label for="dynamic">Share This Article:</label>
  </span>
  <span class="input-text-url">
    <input type="text" id="dynamic" value="http://ajnr-stage2.stage.highwire.org/content/38/8/E53" size="50"/>
  </span>
  <span class="copy-button button">
    <button id="copy-dynamic" class="clipboardjs-button" data-clipboard-target="#dynamic" data-clipboard-alert-style="tooltip" data-clipboard-alert-text="Copied!">Copy</button>
  </span>
</div>
  </div>

  
  </div>
<div class="panel-separator"></div><div class="panel-pane pane-service-links" >
  
      
  
  <div class="pane-content">
    <div class="service-links"><a href="http://del.icio.us/post?url=http%3A//ajnr-stage2.stage.highwire.org/content/38/8/E53&amp;title=Regarding%20%E2%80%9CWhat%20Is%20the%20Ideal%20Core%20Number%20for%20Ultrasonography-Guided%20Thyroid%20Biopsy%20of%20Cytologically%20Inconclusive%20Nodules%3F%E2%80%9D" id="delicious" title="Bookmark this post on del.icio.us" class="service-links-delicious" rel="nofollow" target="_blank" data-icon-position="" data-hide-link-title="0"><img src="http://ajnr-stage2.stage.highwire.org/sites/all/modules/highwire/highwire/images/delicious-32.png" alt="del.icio.us logo" /></a> <a href="http://twitter.com/share?url=http%3A//ajnr-stage2.stage.highwire.org/content/38/8/E53&amp;text=Regarding%20%E2%80%9CWhat%20Is%20the%20Ideal%20Core%20Number%20for%20Ultrasonography-Guided%20Thyroid%20Biopsy%20of%20Cytologically%20Inconclusive%20Nodules%3F%E2%80%9D" id="twitter" title="Share this on Twitter" class="service-links-twitter" rel="nofollow" target="_blank" data-icon-position="" data-hide-link-title="0"><img src="http://ajnr-stage2.stage.highwire.org/sites/all/modules/highwire/highwire/images/twitter.png" alt="Twitter logo" /></a> <a href="http://www.facebook.com/sharer.php?u=http%3A//ajnr-stage2.stage.highwire.org/content/38/8/E53&amp;t=Regarding%20%E2%80%9CWhat%20Is%20the%20Ideal%20Core%20Number%20for%20Ultrasonography-Guided%20Thyroid%20Biopsy%20of%20Cytologically%20Inconclusive%20Nodules%3F%E2%80%9D" id="facebook" title="Share on Facebook" class="service-links-facebook" rel="nofollow" target="_blank" data-icon-position="" data-hide-link-title="0"><img src="http://ajnr-stage2.stage.highwire.org/sites/all/modules/highwire/highwire/images/fb-blue.png" alt="Facebook logo" /></a> <a href="http://www.mendeley.com/import/?url=http%3A//ajnr-stage2.stage.highwire.org/content/38/8/E53&amp;title=Regarding%20%E2%80%9CWhat%20Is%20the%20Ideal%20Core%20Number%20for%20Ultrasonography-Guided%20Thyroid%20Biopsy%20of%20Cytologically%20Inconclusive%20Nodules%3F%E2%80%9D" id="mendeley" title="Share on Mendeley" class="service-links-mendeley" rel="nofollow" target="_blank" data-icon-position="" data-hide-link-title="0"><img src="http://ajnr-stage2.stage.highwire.org/sites/all/modules/highwire/highwire/images/mendeley.png" alt="Mendeley logo" /></a></div>  </div>

  
  </div>
</div>
  </div>
</div>
  </div>

  
  </div>
<div class="panel-pane pane-service-links" >
  
      
  
  <div class="pane-content">
    <div class="service-links"><div class="item-list"><ul><li class="first"><a href="http://twitter.com/share?url=http%3A//ajnr-stage2.stage.highwire.org/content/38/8/E53&amp;count=horizontal&amp;via=&amp;text=Regarding%20%E2%80%9CWhat%20Is%20the%20Ideal%20Core%20Number%20for%20Ultrasonography-Guided%20Thyroid%20Biopsy%20of%20Cytologically%20Inconclusive%20Nodules%3F%E2%80%9D&amp;counturl=http%3A//ajnr-stage2.stage.highwire.org/content/38/8/E53" class="twitter-share-button service-links-twitter-widget" id="twitter_widget" title="Tweet This" rel="nofollow" target="_blank" data-icon-position="" data-hide-link-title="0"><span class="element-invisible">Tweet Widget</span></a></li><li><a href="http://www.facebook.com/plugins/like.php?href=http%3A//ajnr-stage2.stage.highwire.org/content/38/8/E53&amp;layout=button_count&amp;show_faces=false&amp;action=like&amp;colorscheme=light&amp;width=100&amp;height=21&amp;font=&amp;locale=" id="facebook_like" title="I Like it" class="service-links-facebook-like" rel="nofollow" target="_blank" data-icon-position="" data-hide-link-title="0"><span class="element-invisible">Facebook Like</span></a></li><li class="last"><a href="http://ajnr-stage2.stage.highwire.org/content/38/8/E53" id="google_plus_one" title="Plus it" class="service-links-google-plus-one" rel="nofollow" target="_blank" data-icon-position="" data-hide-link-title="0"><span class="element-invisible">Google Plus One</span></a></li></ul></div></div>  </div>

  
  </div>
</div>
          </div>
        </div>
	</div> <!-- /.panel-row-wrapper -->	
	
	</div>

  </div>

  
  </div>
<div class="panel-separator"></div><div class="panel-pane pane-jnl-ajnr-rental" >
  
      
  
  <div class="pane-content">
    <span class="js-deepdyve-link">
            <a class="button btn btn-primary btn-sm" role="button"  href="https://www.deepdyve.com/doc-view?docId=10.3174/ajnr.A5231&fieldName=journal_doi&affiliateId=asnr"><i class="icon-usd"> </i> Purchase</a>  </div>

  
  </div>
<div class="panel-separator"></div><div class="panel-pane pane-highwire-article-nav mobile-hidden pane-style-alt-content" >
  
        <h2 class="pane-title">Jump to section</h2>
    
  
  <div class="pane-content">
    <div class="highwire-list-wrapper highwire-article-nav highwire-nav-float"><div class="highwire-list"><ul data-highwire-float="1" data-highwire-float-class="grid-10 alpha omega"><li class="parent first odd"><a href="/content/38/8/E53" class="highwire-article-nav-jumplink" data-panel-ajax-tab="jnl_ajnr_tab_art" data-is-tab-link="true" data-icon-position="" data-hide-link-title="0">Article</a><div class="highwire-list"><ul><li class="first odd"><a href="#fn-group-1" class="highwire-article-nav-jumplink first" data-panel-ajax-tab="jnl_ajnr_tab_art" data-icon-position="" data-hide-link-title="0">Footnotes</a></li><li class="last even"><a href="#ref-list-1" class="highwire-article-nav-jumplink last" data-panel-ajax-tab="jnl_ajnr_tab_art" data-icon-position="" data-hide-link-title="0">REFERENCES</a></li></ul></div></li><li class="even"><a href="/content/38/8/E53/tab-references" class="highwire-article-nav-jumplink" data-panel-ajax-tab="jnl_ajnr_tab_refs" data-is-tab-link="true" data-icon-position="" data-hide-link-title="0">References</a></li><li class="odd"><a href="/content/38/8/E53/tab-article-info" class="highwire-article-nav-jumplink" data-panel-ajax-tab="jnl_ajnr_tab_info" data-is-tab-link="true" data-icon-position="" data-hide-link-title="0">Info &amp; Metrics</a></li><li class="last even"><a href="/content/38/8/E53.full.pdf" class="highwire-article-nav-jumplink" data-icon-position="" data-hide-link-title="0"><i class="icon-file-alt"></i> PDF</a></li></ul></div></div>  </div>

  
  </div>
<div class="panel-separator"></div><div class="panel-pane pane-panels-mini pane-jnl-ajnr-accordion" >
  
      
  
  <div class="pane-content">
    <div class="panel-display panel-1col clearfix" id="mini-panel-jnl_ajnr_accordion">
  <div class="panel-panel panel-col">
    <div><div id="highwire_article_accordion_container"><h3 ><i class="icon-caret-right"></i> Related Articles</h3><div><div class="highwire-list highwire-related-articles highwire-article-citation-list"><ul class="highwire-related-articles-list"><li class="first last odd"><div class="no-results">No related articles found.</div></li></ul></div><div class='highwire-list-footer'><div class="highwire-related-articles-footer"><ul class="links inline"><li class="related-pubmed first"><a href="/lookup/external-ref?link_type=MED_NBRS&amp;access_num=28619835" target="_blank" class="" data-icon-position="" data-hide-link-title="0">PubMed</a></li><li class="related-google-scholar last"><a href="/lookup/google-scholar?link_type=googlescholar&amp;gs_type=related&amp;author%5B0%5D=H.S.%2BPark&amp;author%5B1%5D=J.H.%2BBaek&amp;author%5B2%5D=N.D.%2BGyu&amp;title=Regarding%2B%E2%80%9CWhat%2BIs%2Bthe%2BIdeal%2BCore%2BNumber%2Bfor%2BUltrasonography-Guided%2BThyroid%2BBiopsy%2Bof%2BCytologically%2BInconclusive%2BNodules%3F%E2%80%9D&amp;publication_year=2017&amp;path=content/38/8/E53" target="_blank" class="" data-icon-position="" data-hide-link-title="0">Google Scholar</a></li></ul></div></div></div><h3 ><i class="icon-caret-right"></i> Cited By...</h3><div><div class="highwire-list highwire-cited-by"><ul><li class="first last odd"><div class="no-results">No citing articles found.</div></li></ul></div><div class='highwire-list-footer'><ul class="links inline"><li class="citing-cross-ref first"><a href="/crossref-forward-links/ajnr/38/8/E53#crossref" class="hw-crossref hw-crossref-link-ajax" data-list-wrapper="hw-crossref-list-wrapper" target="_blank" data-icon-position="" data-hide-link-title="0">Crossref</a></li><li class="citing-google-scholar last"><a href="/lookup/google-scholar?link_type=googlescholar&amp;gs_type=citedby&amp;path=content/38/8/E53" target="_blank" class="" data-icon-position="" data-hide-link-title="0">Google Scholar</a></li></ul></div><div title="Crossref Cited-by Linking Search Results" style="display:none;" class="hw-crossref-list-wrapper"><p class = "hw-crossref-message">This article has not yet been cited by articles in journals that are participating in Crossref Cited-by Linking.</p></div></div><h3 ><i class="icon-caret-right"></i> Similar Articles</h3><div><div class="highwire-search-similar-ajax-wrapper" id="highwire-search-similar-articles-list-1"><div class="highwire-ajax-loading"><span class="icon-spinner icon-spin icon-2x"></span></div></div></div></div></div>
  </div>
</div>
  </div>

  
  </div>
</div>
			</div>
		</div>
	
	</div> <!-- /.panel-row-wrapper -->	
	
	</div>

    </div>
  </div>
</div><div class="block block-panels-mini more-padding-top mobile-hiddens block-jnl-ajnr-ad-bot-leaderboard block-panels-mini-jnl-ajnr-ad-bot-leaderboard even block-without-title" id="block-panels-mini-jnl-ajnr-ad-bot-leaderboard">
  <div class="block-inner clearfix">
                
    <div class="content clearfix">
      <div class="panel-display panel-1col clearfix" id="mini-panel-jnl_ajnr_ad_bot_leaderboard">
  <div class="panel-panel panel-col">
    <div><div class="panel-pane pane-dfp-pane text-center" >
  
      
  
  <div class="pane-content">
    <div id="dfp-ad-bottom_leaderboard-wrapper" class="dfp-tag-wrapper">
<div class="slug">Advertisement</div>
<div  id="dfp-ad-bottom_leaderboard" class="dfp-tag-wrapper">
  <script type="text/javascript">
    googletag.cmd.push(function() {
      googletag.display("dfp-ad-bottom_leaderboard");
    });
  </script>
</div>
</div>  </div>

  
  </div>
</div>
  </div>
</div>
    </div>
  </div>
</div>      </div>
</div>  </div>
</section>    
  
      <footer id="section-footer" class="section section-footer">
    
  <div id="zone-postscript" class="zone zone-postscript clearfix container-30">
    <div class="grid-28 suffix-1 prefix-1 region region-postscript-fourth" id="region-postscript-fourth">
  <div class="region-inner region-postscript-fourth-inner">
    <div class="block block-panels-mini block-jnl-ajnr-footer block-panels-mini-jnl-ajnr-footer odd block-without-title" id="block-panels-mini-jnl-ajnr-footer">
  <div class="block-inner clearfix">
                
    <div class="content clearfix">
      <div class="panel-display panels-960-row jcore-row-4col clearfix" id="mini-panel-jnl_ajnr_footer">
  <div class="panel-panel panel-region-col-1 grid-7 alpha">
    <div class="inside"><div class="panel-pane pane-block pane-menu-navigate pane-menu" >
  
        <h2 class="pane-title">News and Updates</h2>
    
  
  <div class="pane-content">
    <nav class="menubar-nav"><ul class="menu" role="menu"><li class="first leaf" role="menuitem"><a href="https://www.ajnr.org/cc/2024-Awards" data-hide-link-title="0" class="" data-icon-position="">2024 Journal Award Winners</a></li>
<li class="last leaf" role="menuitem"><a href="/page/content/Reviewer-Recognition" data-hide-link-title="0" class="" data-icon-position="">Thanks to our 2023 Distinguished Reviewers</a></li>
</ul></nav>  </div>

  
  </div>
</div>
  </div>
  <div class="panel-panel panel-region-col-2 grid-7">
    <div class="inside"><div class="panel-pane pane-block pane-menu-more-information pane-menu" >
  
        <h2 class="pane-title">Resources</h2>
    
  
  <div class="pane-content">
    <nav class="menubar-nav"><ul class="menu" role="menu"><li class="first leaf" role="menuitem"><a href="/page/content/EBM" data-hide-link-title="0" class="" data-icon-position="">Evidence-Based Medicine Level Guide</a></li>
<li class="leaf" role="menuitem"><a href="/content/browse-podcast-archives" data-hide-link-title="0" class="" data-icon-position="">AJNR Podcast Archive</a></li>
<li class="leaf" role="menuitem"><a href="/content/institutional-subscriptions" data-hide-link-title="0" class="" data-icon-position="">Librarian Resources</a></li>
<li class="last leaf" role="menuitem"><a href="http://www.ajnr.org/page/content/Terms-and-Conditions" data-hide-link-title="0" class="" data-icon-position="">Terms and Conditions</a></li>
</ul></nav>  </div>

  
  </div>
</div>
  </div>
  <div class="panel-panel panel-region-col-3 grid-7">
    <div class="inside"><div class="panel-pane pane-block pane-menu-add-journals pane-menu" >
  
        <h2 class="pane-title">Opportunities</h2>
    
  
  <div class="pane-content">
    <nav class="menubar-nav"><ul class="menu" role="menu"><li class="first last leaf" role="menuitem"><a href="/page/content/Publons" data-hide-link-title="0" class="" data-icon-position="">Get Peer Review Credit from Publons</a></li>
</ul></nav>  </div>

  
  </div>
</div>
  </div>
  <div class="panel-panel panel-region-col-4 grid-7 omega">
    <div class="inside"><div class="panel-pane pane-block pane-menu-other-services pane-menu" >
  
        <h2 class="pane-title">American Society of Neuroradiology</h2>
    
  
  <div class="pane-content">
    <nav class="menubar-nav"><ul class="menu" role="menu"><li class="first leaf" role="menuitem"><a href="http://www.neurographics.org/" data-hide-link-title="0" class="" data-icon-position="">Neurographics</a></li>
<li class="leaf" role="menuitem"><a href="http://www.asnr.org/index.php/education/fellowship-portal/" data-hide-link-title="0" class="" data-icon-position="">Fellowship Portal</a></li>
<li class="last leaf" role="menuitem"><a href="https://www.asnr.org/membership-types/" data-hide-link-title="0" class="" data-icon-position="">Not an ASNR Member? Join Now</a></li>
</ul></nav>  </div>

  
  </div>
</div>
  </div>
</div>    </div>
  </div>
</div>  </div>
</div>  </div>
  
  <div id="zone-footer" class="zone zone-footer clearfix container-30">
    <div class="grid-28 suffix-1 prefix-1 region region-footer-first" id="region-footer-first">
  <div class="region-inner region-footer-first-inner">
    <div class="block block-panels-mini block-jnl-ajnr-foot-info block-panels-mini-jnl-ajnr-foot-info odd block-without-title" id="block-panels-mini-jnl-ajnr-foot-info">
  <div class="block-inner clearfix">
                
    <div class="content clearfix">
      <div class="panel-display panel-1col clearfix" id="mini-panel-jnl_ajnr_foot_info">
  <div class="panel-panel panel-col">
    <div><div class="panel-pane pane-page-logo-footer" >
  
      
  
  <div class="pane-content">
    <img class="footer-logo" src="http://ajnr-stage2.stage.highwire.org/sites/default/files/ajnr-logo.png" alt="" />  </div>

  
  </div>
<div class="panel-separator"></div><div class="panel-pane pane-snippet pane-footer-copyright-text" >
  
      
  
  <div class="pane-content">
    <div class="snippet footer-copyright-text" id="footer-copyright-text">
  
      
  <div class="snippet-content">
    <p>&copy; 2025 by the <a href="http://www.asnr.org">American Society of Neuroradiology</a> All rights, including for text and data mining, AI training, and similar technologies, are reserved.<br />
Print ISSN: 0195-6108 Online ISSN: 1936-959X</p>
  </div>

</div>
  </div>

  
  </div>
<div class="panel-separator"></div><div class="panel-pane pane-highwire-branding" >
  
      
  
  <div class="pane-content">
    <a href="http://home.highwire.org" target="_blank" class="highwire-branding-link" data-icon-position="" data-hide-link-title="0"><img class="logo-highwire" src="http://ajnr-stage2.stage.highwire.org/sites/all/modules/highwire/highwire/plugins/content_types/images/logo_small_hw_white.png" width="190" height="31" alt="Powered by HighWire" /></a>  </div>

  
  </div>
</div>
  </div>
</div>
    </div>
  </div>
</div>  </div>
</div>  </div>
</footer>  </div>    <div class="region region-page-bottom" id="region-page-bottom">
  <div class="region-inner region-page-bottom-inner">
      </div>
</div><script type="text/javascript" src="/sites/default/files/advagg_js/js__bnwyEQSuZLC-kZnFqCi5iE02nOCzM7DjY7zYxcN9nsQ__VBiBT_qq_eHMMO2Q1rXK1u-hHff31XLUkmi9dgjuPeY__Op4k-kV4DoWc7bsUP7umKmZ0WXfmoYdRDoZFPNSd-oM.js"></script>
<script type="text/javascript" src="/sites/default/files/advagg_js/js__GM3GJPR36rRIz0TRkjC5OQwrioSyN9aoYRivDhCO_AM__qAl84FcCv2jyN22yFGS5Oc85cjd9zKX6p_cFNLGhe-M__Op4k-kV4DoWc7bsUP7umKmZ0WXfmoYdRDoZFPNSd-oM.js" async="async"></script>
<script type="text/javascript" src="/sites/default/files/advagg_js/js__puuQ6qZuZflSOzhCnY-jgY7Fv9AlRwAQ8SzEc4pSqOs__QdvWVdmkPpxtURk1sK0nHm-KZ4OJQjVuYZTnLqK1Isw__Op4k-kV4DoWc7bsUP7umKmZ0WXfmoYdRDoZFPNSd-oM.js"></script>
<script type="text/javascript">
<!--//--><![CDATA[//><!--
function euCookieComplianceLoadScripts() {}
//--><!]]>
</script>
<script type="text/javascript">
<!--//--><![CDATA[//><!--
var eu_cookie_compliance_cookie_name = "";
//--><!]]>
</script>
<script type="text/javascript" src="/sites/default/files/advagg_js/js__WcTpt-w0y1FyXrxZNriX8Ts1KjsFTDpdvZaw9yhRn24__aFJpdvsZPb1v9rWrq-WXbz_WQ9IThQN-mFTCdm1cfXc__Op4k-kV4DoWc7bsUP7umKmZ0WXfmoYdRDoZFPNSd-oM.js"></script>
  </body>
</html>