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    <div class="highwire-article-citation highwire-citation-type-highwire-article node54392--5" data-node-nid="54392" id="top-node-54392--6173697805" data-pisa="ajnr;38/5/E31" data-pisa-master="ajnr;ajnr.A5111" data-apath="/ajnr/38/5/E31.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">
  
  
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      <h1 class="highwire-cite-title" id="page-title"><em>Reply:</em></h1>  
    	<div class="highwire-cite-authors"><span  class="highwire-citation-authors"><span class="highwire-citation-author first" data-delta="0">T.N. Booth</span>, <span class="highwire-citation-author" data-delta="1">R. Jacob</span>, <span class="highwire-citation-author" data-delta="2">C. Greenwell</span>, <span class="highwire-citation-author" data-delta="3">K. Reeder</span> and <span class="highwire-citation-author" data-delta="4">K. Koral</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">May 2017,  </span><span  class="highwire-cite-metadata-volume highwire-cite-metadata">38 </span><span  class="highwire-cite-metadata-issue highwire-cite-metadata">(5) </span><span  class="highwire-cite-metadata-pages highwire-cite-metadata">E31; </span><span  class="highwire-cite-metadata-doi highwire-cite-metadata">DOI: https://doi.org/10.3174/ajnr.A5111 </span></div>
  
  
  
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<div id="hw-article-author-popups-top-node-54392--6173697805" style="display: none;"><div class="author-tooltip-0"><div class="author-tooltip-name">T.N. Booth </div><div class="author-tooltip-affiliation"><span class="author-tooltip-text"><div class='author-affiliation'><span class='nlm-sup'>a</span>Children's Health Dallas
University of Texas Southwestern Medical Center
Dallas, Texas</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=T.N.%2BBooth%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=Booth%20T&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%3AT.N.%2BBooth%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/0000-0003-0757-0957" target="_blank" class="" data-icon-position="" data-hide-link-title="0">ORCID record for T.N. Booth</a></li></ul></div><div class="author-tooltip-1"><div class="author-tooltip-name">R. Jacob </div><div class="author-tooltip-affiliation"><span class="author-tooltip-text"><div class='author-affiliation'><span class='nlm-sup'>b</span>University Medical Center Health System
Texas Tech University
Lubbock, Texas</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=R.%2BJacob%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=Jacob%20R&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%3AR.%2BJacob%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/0000-0003-4599-2894" target="_blank" class="" data-icon-position="" data-hide-link-title="0">ORCID record for R. Jacob</a></li></ul></div><div class="author-tooltip-2"><div class="author-tooltip-name">C. Greenwell </div><div class="author-tooltip-affiliation"><span class="author-tooltip-text"><div class='author-affiliation'><span class='nlm-sup'>c</span>Children's Health Dallas
University of Texas Southwestern Medical Center
Dallas, Texas</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=C.%2BGreenwell%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=Greenwell%20C&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%3AC.%2BGreenwell%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/0000-0003-4822-2211" target="_blank" class="" data-icon-position="" data-hide-link-title="0">ORCID record for C. Greenwell</a></li></ul></div><div class="author-tooltip-3"><div class="author-tooltip-name">K. Reeder </div><div class="author-tooltip-affiliation"><span class="author-tooltip-text"><div class='author-affiliation'><span class='nlm-sup'>c</span>Children's Health Dallas
University of Texas Southwestern Medical Center
Dallas, Texas</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=K.%2BReeder%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=Reeder%20K&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%3AK.%2BReeder%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/0000-0002-2795-7967" target="_blank" class="" data-icon-position="" data-hide-link-title="0">ORCID record for K. Reeder</a></li></ul></div><div class="author-tooltip-4"><div class="author-tooltip-name">K. Koral </div><div class="author-tooltip-affiliation"><span class="author-tooltip-text"><div class='author-affiliation'><span class='nlm-sup'>c</span>Children's Health Dallas
University of Texas Southwestern Medical Center
Dallas, Texas</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=K.%2BKoral%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=Koral%20K&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%3AK.%2BKoral%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/0000-0002-8695-300X" target="_blank" class="" data-icon-position="" data-hide-link-title="0">ORCID record for K. Koral</a></li></ul></div></div></div>  </div>

  
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    <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 would like to thank the authors of a letter in reference to our recently published study, “MR Imaging of the Cervical Spine in Nonaccidental Trauma: A Tertiary Institution Experience.” The word “clearance” was not in the title of the study as suggested by the preceding letter, and our article did not address whether the MR imaging findings could determine cervical spine stability or instability. However, MR imaging with negative findings has been shown to be useful in clearing the cervical spine,<sup><a id="xref-ref-1-1" class="xref-bibr" href="#ref-1">1</a></sup> which would have been the case in 31% of our patients. We agree that positive findings relating to instability are less well-defined and posterior ligamentous injury is likely a stable injury. The additional findings of capsular injury with distension (13%) and tectorial ligament injury (4%) are more worrisome, and we believe these would alter management, but again this was not the purpose of our study.</p><p id="p-2">These children do not necessarily have a history of a traumatic incident, and positive findings on MR imaging may be helpful to define the injury as traumatic. We do not advocate the use of MR imaging for defining a ligamentous injury as accidental or nonaccidental because these injuries have similar findings, but the positive findings are significantly more common in the nonaccidental cohort as reported by Choudhary et al.<sup><a id="xref-ref-2-1" class="xref-bibr" href="#ref-2">2</a></sup> Most interesting, the presence of spinal subdural hemorrhage, likely from redistribution, may be indicative of a nonaccidental mechanism because it was rarely seen in the accidental cohort.<sup><a id="xref-ref-3-1" class="xref-bibr" href="#ref-3">3</a></sup> Spinal subdural hemorrhage was seen in 18% of our patients.</p><p id="p-3">In our study, the cervical spine injuries were statistically associated with parenchymal brain injury; therefore, poor outcome may not be due to the cervical spine injury but related to the associated brain injury. We realize that the prior study by Kadom et al<sup><a id="xref-ref-4-1" class="xref-bibr" href="#ref-4">4</a></sup> did not find an association between outcome and cervical spine injury as diagnosed on MR imaging and further study is needed. Additionally, a positive finding on cervical MR imaging would strengthen the case for trauma as an etiology for the brain injury.</p><p id="p-4">The letter indicates that only 43% of the MR imaging studies in our study were of superior quality, but studies of all patients were categorized as superior or diagnostic. It is more important to realize the inherent insensitivity of cervical radiographs in the evaluation of cervical spine injury, especially in young children.<sup><a id="xref-ref-5-1" class="xref-bibr" href="#ref-5">5</a></sup> Also, most of our injuries were at the cervical-occipital junction, and CT criteria for evaluating this injury have recently been re-evaluated and found to be suboptimal.<sup><a id="xref-ref-6-1" class="xref-bibr" href="#ref-6">6</a></sup></p><p id="p-5">In this vulnerable population, MR imaging of the cervical spine may provide additional answers. Many of these examinations can be performed in conjunction with brain MR imaging without additional sedation/anesthesia. A small number of children in our study had normal brain imaging findings and evidence of cervical spine injury. This information would be extremely helpful in the evaluation of a child with suspected nonaccidental trauma. We believe our study supports the use of cervical MR imaging in this cohort of patients.</p><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-38.5.E31.1" data-doi="10.1097/00007632-200206010-00008"><div class="cit-metadata"><ol class="cit-auth-list"><li>
</li><li><span class="cit-auth"><span class="cit-name-surname">Frank</span>  <span class="cit-name-given-names">JB</span></span>, </li><li><span class="cit-auth"><span class="cit-name-surname">Lim</span>  <span class="cit-name-given-names">CK</span></span>, </li><li><span class="cit-auth"><span class="cit-name-surname">Flynn</span>  <span class="cit-name-given-names">JM</span></span>, <span class="cit-etal">et al</span></li></ol><cite>. <span class="cit-article-title">The efficacy of magnetic resonance imaging in pediatric cervical spine clearance</span>. <abbr class="cit-jnl-abbrev">Spine</abbr> <span class="cit-pub-date">2002</span>;<span class="cit-vol">27</span>:<span class="cit-fpage">1176</span>–<span class="cit-lpage">79</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>10.1097/00007632-200206010-00008</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>12045514</span></cite></div><div class="cit-extra"><a href="/lookup/external-ref?access_num=10.1097/00007632-200206010-00008&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=12045514&amp;link_type=MED&amp;atom=%2Fajnr%2F38%2F5%2FE31.atom" class="cit-ref-sprinkles cit-ref-sprinkles-medline"><span>PubMed</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-38.5.E31.2" data-doi="10.1007/s00247-014-2959-3"><div class="cit-metadata"><ol class="cit-auth-list"><li>
</li><li><span class="cit-auth"><span class="cit-name-surname">Choudhary</span>  <span class="cit-name-given-names">AK</span></span>, </li><li><span class="cit-auth"><span class="cit-name-surname">Ishak</span>  <span class="cit-name-given-names">R</span></span>, </li><li><span class="cit-auth"><span class="cit-name-surname">Zacharia</span>  <span class="cit-name-given-names">TT</span></span>, <span class="cit-etal">et al</span></li></ol><cite>. <span class="cit-article-title">Imaging of spinal injury in abusive head trauma: a retrospective study</span>. <abbr class="cit-jnl-abbrev">Pediatr Radiol</abbr> <span class="cit-pub-date">2014</span>;<span class="cit-vol">44</span>:<span class="cit-fpage">1130</span>–<span class="cit-lpage">40</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>10.1007/s00247-014-2959-3</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>24687620</span></cite></div><div class="cit-extra"><a href="/lookup/external-ref?access_num=10.1007/s00247-014-2959-3&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=24687620&amp;link_type=MED&amp;atom=%2Fajnr%2F38%2F5%2FE31.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-38.5.E31.3" data-doi="10.1148/radiol.11102390"><div class="cit-metadata"><ol class="cit-auth-list"><li>
</li><li><span class="cit-auth"><span class="cit-name-surname">Choudhary</span>  <span class="cit-name-given-names">AK</span></span>, </li><li><span class="cit-auth"><span class="cit-name-surname">Bradford</span>  <span class="cit-name-given-names">RK</span></span>, </li><li><span class="cit-auth"><span class="cit-name-surname">Dias</span>  <span class="cit-name-given-names">MS</span></span>, <span class="cit-etal">et al</span></li></ol><cite>. <span class="cit-article-title">Spinal subdural hemorrhage in abusive head trauma: a retrospective study</span>. <abbr class="cit-jnl-abbrev">Radiology</abbr> <span class="cit-pub-date">2012</span>;<span class="cit-vol">262</span>:<span class="cit-fpage">216</span>–<span class="cit-lpage">23</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>10.1148/radiol.11102390</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>22069156</span></cite></div><div class="cit-extra"><a href="/lookup/external-ref?access_num=10.1148/radiol.11102390&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=22069156&amp;link_type=MED&amp;atom=%2Fajnr%2F38%2F5%2FE31.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-38.5.E31.4" data-doi="10.1007/s00247-014-2874-77"><div class="cit-metadata"><ol class="cit-auth-list"><li>
</li><li><span class="cit-auth"><span class="cit-name-surname">Kadom</span>  <span class="cit-name-given-names">N</span></span>, </li><li><span class="cit-auth"><span class="cit-name-surname">Khademian</span>  <span class="cit-name-given-names">Z</span></span>, </li><li><span class="cit-auth"><span class="cit-name-surname">Vezina</span>  <span class="cit-name-given-names">G</span></span>, <span class="cit-etal">et al</span></li></ol><cite>. <span class="cit-article-title">Usefulness of MRI detection of cervical spine and brain injuries in the evaluation of abusive head trauma</span>. <abbr class="cit-jnl-abbrev">Pediatr Radiol</abbr> <span class="cit-pub-date">2014</span>;<span class="cit-vol">44</span>:<span class="cit-fpage">839</span>–<span class="cit-lpage">48</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>10.1007/s00247-014-2874-7</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>24557483</span></cite></div><div class="cit-extra"><a href="/lookup/external-ref?access_num=10.1007/s00247-014-2874-77&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=24557483&amp;link_type=MED&amp;atom=%2Fajnr%2F38%2F5%2FE31.atom" class="cit-ref-sprinkles cit-ref-sprinkles-medline"><span>PubMed</span></a></div></div></li><li><span class="ref-label">5.</span><a class="rev-xref-ref" href="#xref-ref-5-1" title="View reference 5. in text" id="ref-5">↵</a><div class="cit ref-cit ref-journal" id="cit-38.5.E31.5" data-doi="10.1007/s00381-016-3273-1"><div class="cit-metadata"><ol class="cit-auth-list"><li>
</li><li><span class="cit-auth"><span class="cit-name-surname">Moore</span>  <span class="cit-name-given-names">JM</span></span>, </li><li><span class="cit-auth"><span class="cit-name-surname">Hall</span>  <span class="cit-name-given-names">J</span></span>, </li><li><span class="cit-auth"><span class="cit-name-surname">Ditchfield</span>  <span class="cit-name-given-names">M</span></span>, <span class="cit-etal">et al</span></li></ol><cite>. <span class="cit-article-title">Utility of plain radiographs and MRI in cervical spine clearance in symptomatic non-obtunded pediatric patients without high-impact trauma</span>. <abbr class="cit-jnl-abbrev">Childs Nerv Syst</abbr> <span class="cit-pub-date">2016</span> 
<span class="cit-month">Dec</span> 
<span class="cit-day">6</span>. <span class="cit-comment">[Epub ahead of print]</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>10.1007/s00381-016-3273-1</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>27924366</span></cite></div><div class="cit-extra"><a href="/lookup/external-ref?access_num=10.1007/s00381-016-3273-1&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=27924366&amp;link_type=MED&amp;atom=%2Fajnr%2F38%2F5%2FE31.atom" class="cit-ref-sprinkles cit-ref-sprinkles-medline"><span>PubMed</span></a></div></div></li><li><span class="ref-label">6.</span><a class="rev-xref-ref" href="#xref-ref-6-1" title="View reference 6. in text" id="ref-6">↵</a><div class="cit ref-cit ref-journal" id="cit-38.5.E31.6" data-doi="10.3174/ajnr.A4641"><div class="cit-metadata"><ol class="cit-auth-list"><li>
</li><li><span class="cit-auth"><span class="cit-name-surname">Corcoran</span>  <span class="cit-name-given-names">B</span></span>, </li><li><span class="cit-auth"><span class="cit-name-surname">Linscott</span>  <span class="cit-name-given-names">LL</span></span>, </li><li><span class="cit-auth"><span class="cit-name-surname">Leach</span>  <span class="cit-name-given-names">JL</span></span>, <span class="cit-etal">et al</span></li></ol><cite>. <span class="cit-article-title">Application of normative occipital condyle-C1 interval measurements to detect atlanto-occipital injury in children</span>. <abbr class="cit-jnl-abbrev">AJNR Am J Neuroradiol</abbr> <span class="cit-pub-date">2016</span>;<span class="cit-vol">37</span>:<span class="cit-fpage">958</span>–<span class="cit-lpage">62</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.A4641</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>26744446</span></cite></div><div class="cit-extra"><a href="/lookup/ijlink/YTozOntzOjQ6InBhdGgiO3M6MTQ6Ii9sb29rdXAvaWpsaW5rIjtzOjU6InF1ZXJ5IjthOjQ6e3M6ODoibGlua1R5cGUiO3M6NDoiQUJTVCI7czoxMToiam91cm5hbENvZGUiO3M6NDoiYWpuciI7czo1OiJyZXNpZCI7czo4OiIzNy81Lzk1OCI7czo0OiJhdG9tIjtzOjE5OiIvYWpuci8zOC81L0UzMS5hdG9tIjt9czo4OiJmcmFnbWVudCI7czowOiIiO30=" 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></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>

  
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        	<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 5 </span><div  class="highwire-cite-metadata-pubdate highwire-cite-metadata">1 May 2017 </div></div>
      
      
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    	<div class="highwire-cite-authors"><span  class="highwire-citation-authors"><span class="highwire-citation-author first" data-delta="0"><span class="nlm-given-names">T.N.</span> <span class="nlm-surname">Booth</span></span>, <span class="highwire-citation-author" data-delta="1"><span class="nlm-given-names">R.</span> <span class="nlm-surname">Jacob</span></span>, <span class="highwire-citation-author" data-delta="2"><span class="nlm-given-names">C.</span> <span class="nlm-surname">Greenwell</span></span>, <span class="highwire-citation-author" data-delta="3"><span class="nlm-given-names">K.</span> <span class="nlm-surname">Reeder</span></span>, <span class="highwire-citation-author" data-delta="4"><span class="nlm-given-names">K.</span> <span class="nlm-surname">Koral</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">May 2017, </span><span  class="highwire-cite-metadata-volume highwire-cite-metadata">38 </span><span  class="highwire-cite-metadata-issue highwire-cite-metadata">(5) </span><span  class="highwire-cite-metadata-pages highwire-cite-metadata">E31; </span><span  class="highwire-cite-metadata-doi highwire-cite-metadata"><span class="label">DOI:</span> 10.3174/ajnr.A5111 </span></div>
  
  
  
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    	<div class="highwire-cite-authors"><span  class="highwire-citation-authors"><span class="highwire-citation-author first" data-delta="0"><span class="nlm-given-names">T.N.</span> <span class="nlm-surname">Booth</span></span>, <span class="highwire-citation-author" data-delta="1"><span class="nlm-given-names">R.</span> <span class="nlm-surname">Jacob</span></span>, <span class="highwire-citation-author" data-delta="2"><span class="nlm-given-names">C.</span> <span class="nlm-surname">Greenwell</span></span>, <span class="highwire-citation-author" data-delta="3"><span class="nlm-given-names">K.</span> <span class="nlm-surname">Reeder</span></span>, <span class="highwire-citation-author" data-delta="4"><span class="nlm-given-names">K.</span> <span class="nlm-surname">Koral</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">May 2017, </span><span  class="highwire-cite-metadata-volume highwire-cite-metadata">38 </span><span  class="highwire-cite-metadata-issue highwire-cite-metadata">(5) </span><span  class="highwire-cite-metadata-pages highwire-cite-metadata">E31; </span><span  class="highwire-cite-metadata-doi highwire-cite-metadata"><span class="label">DOI:</span> 10.3174/ajnr.A5111 </span></div>
  
  
  
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