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<meta name="DC.Title" content="Facet Joint Signal Change on MRI at Levels of Acute/Subacute Lumbar Compression Fractures" />
<meta name="DC.Identifier" content="10.3174/ajnr.A3449" />
<meta name="DC.Date" content="2013-07-01" />
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<meta name="DC.Description" content="BACKGROUND AND PURPOSE: The prevalence of facet joint signal change in acute/subacute lumbar vertebral body compression fractures is unknown. We hypothesized that facet joint signal change on MR imaging is more common in facet joints associated with an acute/subacute lumbar compression fracture than those associated with normal vertebral bodies or ones that have a chronic compression fracture.

MATERIALS AND METHODS: Three neuroradiologists and a neuroradiology fellow retrospectively graded facet joint inflammatory change on MR imaging in 900 facet joints in 75 patients with at least 1 painful osteoporotic lumbar compression fracture. Facet joint signal change was assessed on T2-weighted images with chemical fat-saturation, STIR images, and/or gadolinium-enhanced T1-weighted images with chemical fat-saturation. Each facet joint from the T12/L1 to L5/S1 level was assessed individually. An overall facet joint signal-change score, which is a composite measure of the grade of signal change for all 4 facet joints associated with a given lumbar vertebral level, was devised, and statistical significance was assessed via Wilcoxon rank sum tests.

RESULTS: The overall facet joint signal-change scores were significantly higher at vertebral body levels affected by an acute/subacute compression fracture compared with control levels, which were associated with either normal bodies or chronic compression fractures.

CONCLUSIONS: Our findings suggest an association between facet joint signal change on MR imaging and acute/subacute lumbar vertebral body compression fractures.

STIR
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<meta name="DC.Contributor" content="V.T. Lehman" />
<meta name="DC.Contributor" content="C.P. Wood" />
<meta name="DC.Contributor" content="C.H. Hunt" />
<meta name="DC.Contributor" content="R.E. Carter" />
<meta name="DC.Contributor" content="J.B. Allred" />
<meta name="DC.Contributor" content="F.E. Diehn" />
<meta name="DC.Contributor" content="J.M. Morris" />
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<meta name="DC.Contributor" content="K.R. Thielen" />
<meta name="article:published_time" content="2013-07-01" />
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<meta name="citation_title" content="Facet Joint Signal Change on MRI at Levels of Acute/Subacute Lumbar Compression Fractures" />
<meta name="citation_abstract" lang="en" content="&lt;h3&gt;BACKGROUND AND PURPOSE:&lt;/h3&gt;
&lt;p&gt;The prevalence of facet joint signal change in acute/subacute lumbar vertebral body compression fractures is unknown. We hypothesized that facet joint signal change on MR imaging is more common in facet joints associated with an acute/subacute lumbar compression fracture than those associated with normal vertebral bodies or ones that have a chronic compression fracture.&lt;/p&gt;&lt;h3&gt;MATERIALS AND METHODS:&lt;/h3&gt;
&lt;p&gt;Three neuroradiologists and a neuroradiology fellow retrospectively graded facet joint inflammatory change on MR imaging in 900 facet joints in 75 patients with at least 1 painful osteoporotic lumbar compression fracture. Facet joint signal change was assessed on T2-weighted images with chemical fat-saturation, STIR images, and/or gadolinium-enhanced T1-weighted images with chemical fat-saturation. Each facet joint from the T12/L1 to L5/S1 level was assessed individually. An overall facet joint signal-change score, which is a composite measure of the grade of signal change for all 4 facet joints associated with a given lumbar vertebral level, was devised, and statistical significance was assessed via Wilcoxon rank sum tests.&lt;/p&gt;&lt;h3&gt;RESULTS:&lt;/h3&gt;
&lt;p&gt;The overall facet joint signal-change scores were significantly higher at vertebral body levels affected by an acute/subacute compression fracture compared with control levels, which were associated with either normal bodies or chronic compression fractures.&lt;/p&gt;&lt;h3&gt;CONCLUSIONS:&lt;/h3&gt;
&lt;p&gt;Our findings suggest an association between facet joint signal change on MR imaging and acute/subacute lumbar vertebral body compression fractures.&lt;/p&gt;" />
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MATERIALS AND METHODS: Three neuroradiologists and a neuroradiology fellow retrospectively graded facet joint inflammatory change on MR imaging in 900 facet joints in 75 patients with at least 1 painful osteoporotic lumbar compression fracture. Facet joint signal change was assessed on T2-weighted images with chemical fat-saturation, STIR images, and/or gadolinium-enhanced T1-weighted images with chemical fat-saturation. Each facet joint from the T12/L1 to L5/S1 level was assessed individually. An overall facet joint signal-change score, which is a composite measure of the grade of signal change for all 4 facet joints associated with a given lumbar vertebral level, was devised, and statistical significance was assessed via Wilcoxon rank sum tests.

RESULTS: The overall facet joint signal-change scores were significantly higher at vertebral body levels affected by an acute/subacute compression fracture compared with control levels, which were associated with either normal bodies or chronic compression fractures.

CONCLUSIONS: Our findings suggest an association between facet joint signal change on MR imaging and acute/subacute lumbar vertebral body compression fractures.

STIR
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<meta name="og-description" property="og:description" content="BACKGROUND AND PURPOSE: The prevalence of facet joint signal change in acute/subacute lumbar vertebral body compression fractures is unknown. We hypothesized that facet joint signal change on MR imaging is more common in facet joints associated with an acute/subacute lumbar compression fracture than those associated with normal vertebral bodies or ones that have a chronic compression fracture.

MATERIALS AND METHODS: Three neuroradiologists and a neuroradiology fellow retrospectively graded facet joint inflammatory change on MR imaging in 900 facet joints in 75 patients with at least 1 painful osteoporotic lumbar compression fracture. Facet joint signal change was assessed on T2-weighted images with chemical fat-saturation, STIR images, and/or gadolinium-enhanced T1-weighted images with chemical fat-saturation. Each facet joint from the T12/L1 to L5/S1 level was assessed individually. An overall facet joint signal-change score, which is a composite measure of the grade of signal change for all 4 facet joints associated with a given lumbar vertebral level, was devised, and statistical significance was assessed via Wilcoxon rank sum tests.

RESULTS: The overall facet joint signal-change scores were significantly higher at vertebral body levels affected by an acute/subacute compression fracture compared with control levels, which were associated with either normal bodies or chronic compression fractures.

CONCLUSIONS: Our findings suggest an association between facet joint signal change on MR imaging and acute/subacute lumbar vertebral body compression fractures.

STIR
:   short tau inversion recovery" />
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      <h1 class="highwire-cite-title" id="page-title">Facet Joint Signal Change on MRI at Levels of Acute/Subacute Lumbar Compression Fractures</h1>  
    	<div class="highwire-cite-authors"><span  class="highwire-citation-authors"><span class="highwire-citation-author first" data-delta="0">V.T. Lehman</span>, <span class="highwire-citation-author" data-delta="1">C.P. Wood</span>, <span class="highwire-citation-author" data-delta="2">C.H. Hunt</span>, <span class="highwire-citation-author" data-delta="3">R.E. Carter</span>, <span class="highwire-citation-author" data-delta="4">J.B. Allred</span>, <span class="highwire-citation-author" data-delta="5">F.E. Diehn</span>, <span class="highwire-citation-author" data-delta="6">J.M. Morris</span>, <span class="highwire-citation-author" data-delta="7">J.T. Wald</span> and <span class="highwire-citation-author" data-delta="8">K.R. Thielen</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">July 2013,  </span><span  class="highwire-cite-metadata-volume highwire-cite-metadata">34 </span><span  class="highwire-cite-metadata-issue highwire-cite-metadata">(7) </span><span  class="highwire-cite-metadata-pages highwire-cite-metadata">1468-1473; </span><span  class="highwire-cite-metadata-doi highwire-cite-metadata">DOI: https://doi.org/10.3174/ajnr.A3449 </span></div>
  
  
  
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<div id="hw-article-author-popups-top-node-12541--61360770572" style="display: none;"><div class="author-tooltip-0"><div class="author-tooltip-name">V.T. Lehman </div><div class="author-tooltip-affiliation"><span class="author-tooltip-text"><div class='author-affiliation'><span class='nlm-sup'>a</span>From the Division of Neuroradiology (V.T.L., C.P.W., C.H.H., F.E.D., J.M.M., J.T.W., K.R.T.), Department of Radiology, Mayo Clinic College of Graduate Medical Education, Rochester, Minnesota</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=V.T.%2BLehman%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=Lehman%20V&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 last"><a href="/search/author1%3AV.T.%2BLehman%2B" rel="nofollow" class="" data-icon-position="" data-hide-link-title="0">Search for this author on this site</a></li></ul></div><div class="author-tooltip-1"><div class="author-tooltip-name">C.P. Wood </div><div class="author-tooltip-affiliation"><span class="author-tooltip-text"><div class='author-affiliation'><span class='nlm-sup'>a</span>From the Division of Neuroradiology (V.T.L., C.P.W., C.H.H., F.E.D., J.M.M., J.T.W., K.R.T.), Department of Radiology, Mayo Clinic College of Graduate Medical Education, Rochester, Minnesota</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.P.%2BWood%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=Wood%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 last"><a href="/search/author1%3AC.P.%2BWood%2B" rel="nofollow" class="" data-icon-position="" data-hide-link-title="0">Search for this author on this site</a></li></ul></div><div class="author-tooltip-2"><div class="author-tooltip-name">C.H. Hunt </div><div class="author-tooltip-affiliation"><span class="author-tooltip-text"><div class='author-affiliation'><span class='nlm-sup'>a</span>From the Division of Neuroradiology (V.T.L., C.P.W., C.H.H., F.E.D., J.M.M., J.T.W., K.R.T.), Department of Radiology, Mayo Clinic College of Graduate Medical Education, Rochester, Minnesota</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.H.%2BHunt%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=Hunt%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 last"><a href="/search/author1%3AC.H.%2BHunt%2B" rel="nofollow" class="" data-icon-position="" data-hide-link-title="0">Search for this author on this site</a></li></ul></div><div class="author-tooltip-3"><div class="author-tooltip-name">R.E. Carter </div><div class="author-tooltip-affiliation"><span class="author-tooltip-text"><div class='author-affiliation'><span class='nlm-sup'>b</span>Division of Biomedical Statistics and Informatics (R.E.C., J.B.A.), Mayo Clinic Department of Health Sciences Research, Rochester, Minnesota.</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.E.%2BCarter%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=Carter%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 last"><a href="/search/author1%3AR.E.%2BCarter%2B" rel="nofollow" class="" data-icon-position="" data-hide-link-title="0">Search for this author on this site</a></li></ul></div><div class="author-tooltip-4"><div class="author-tooltip-name">J.B. Allred </div><div class="author-tooltip-affiliation"><span class="author-tooltip-text"><div class='author-affiliation'><span class='nlm-sup'>b</span>Division of Biomedical Statistics and Informatics (R.E.C., J.B.A.), Mayo Clinic Department of Health Sciences Research, Rochester, Minnesota.</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.B.%2BAllred%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=Allred%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 last"><a href="/search/author1%3AJ.B.%2BAllred%2B" rel="nofollow" class="" data-icon-position="" data-hide-link-title="0">Search for this author on this site</a></li></ul></div><div class="author-tooltip-5"><div class="author-tooltip-name">F.E. Diehn </div><div class="author-tooltip-affiliation"><span class="author-tooltip-text"><div class='author-affiliation'><span class='nlm-sup'>a</span>From the Division of Neuroradiology (V.T.L., C.P.W., C.H.H., F.E.D., J.M.M., J.T.W., K.R.T.), Department of Radiology, Mayo Clinic College of Graduate Medical Education, Rochester, Minnesota</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=F.E.%2BDiehn%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=Diehn%20F&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 last"><a href="/search/author1%3AF.E.%2BDiehn%2B" rel="nofollow" class="" data-icon-position="" data-hide-link-title="0">Search for this author on this site</a></li></ul></div><div class="author-tooltip-6"><div class="author-tooltip-name">J.M. Morris </div><div class="author-tooltip-affiliation"><span class="author-tooltip-text"><div class='author-affiliation'><span class='nlm-sup'>a</span>From the Division of Neuroradiology (V.T.L., C.P.W., C.H.H., F.E.D., J.M.M., J.T.W., K.R.T.), Department of Radiology, Mayo Clinic College of Graduate Medical Education, Rochester, Minnesota</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.M.%2BMorris%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=Morris%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 last"><a href="/search/author1%3AJ.M.%2BMorris%2B" rel="nofollow" class="" data-icon-position="" data-hide-link-title="0">Search for this author on this site</a></li></ul></div><div class="author-tooltip-7"><div class="author-tooltip-name">J.T. Wald </div><div class="author-tooltip-affiliation"><span class="author-tooltip-text"><div class='author-affiliation'><span class='nlm-sup'>a</span>From the Division of Neuroradiology (V.T.L., C.P.W., C.H.H., F.E.D., J.M.M., J.T.W., K.R.T.), Department of Radiology, Mayo Clinic College of Graduate Medical Education, Rochester, Minnesota</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.T.%2BWald%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=Wald%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 last"><a href="/search/author1%3AJ.T.%2BWald%2B" rel="nofollow" class="" data-icon-position="" data-hide-link-title="0">Search for this author on this site</a></li></ul></div><div class="author-tooltip-8"><div class="author-tooltip-name">K.R. Thielen </div><div class="author-tooltip-affiliation"><span class="author-tooltip-text"><div class='author-affiliation'><span class='nlm-sup'>a</span>From the Division of Neuroradiology (V.T.L., C.P.W., C.H.H., F.E.D., J.M.M., J.T.W., K.R.T.), Department of Radiology, Mayo Clinic College of Graduate Medical Education, Rochester, Minnesota</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.R.%2BThielen%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=Thielen%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 last"><a href="/search/author1%3AK.R.%2BThielen%2B" rel="nofollow" class="" data-icon-position="" data-hide-link-title="0">Search for this author on this site</a></li></ul></div></div></div>  </div>

  
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    <div class="highwire-markup"><div xmlns="http://www.w3.org/1999/xhtml" xmlns:xhtml="http://www.w3.org/1999/xhtml" class="section ref-list" id="ref-list-1"><h2>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-34.7.1468.1" data-doi="10.1111/j.1526-4637.2010.00963.x"><div class="cit-metadata"><ol class="cit-auth-list"><li><span class="cit-auth"><span class="cit-name-surname">Bogduk</span>  <span class="cit-name-given-names">N</span></span>, </li><li><span class="cit-auth"><span class="cit-name-surname">MacVicar</span>  <span class="cit-name-given-names">J</span></span>, </li><li><span class="cit-auth"><span class="cit-name-surname">Borowczyk</span>  <span class="cit-name-given-names">J</span></span></li></ol><cite>. <span class="cit-article-title">The pain of vertebral body compression fractures can arise in the posterior elements</span>. <abbr class="cit-jnl-abbrev">Pain Med</abbr> <span class="cit-pub-date">2010</span>;<span class="cit-vol">11</span>:<span class="cit-fpage">1666</span>–<span class="cit-lpage">73</span></cite></div><div class="cit-extra"><a href="/lookup/external-ref?access_num=10.1111/j.1526-4637.2010.00963.x&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=21044256&amp;link_type=MED&amp;atom=%2Fajnr%2F34%2F7%2F1468.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-34.7.1468.2" data-doi="10.1007/s00330-011-2115-5"><div class="cit-metadata"><ol class="cit-auth-list"><li><span class="cit-auth"><span class="cit-name-surname">Wilson</span>  <span class="cit-name-given-names">DJ</span></span>, </li><li><span class="cit-auth"><span class="cit-name-surname">Owen</span>  <span class="cit-name-given-names">S</span></span>, </li><li><span class="cit-auth"><span class="cit-name-surname">Corkill</span>  <span class="cit-name-given-names">RA</span></span></li></ol><cite>. <span class="cit-article-title">Facet injections as a means of reducing the need for vertebroplasty in insufficiency fractures of the spine</span>. <abbr class="cit-jnl-abbrev">Eur Radiol</abbr> <span class="cit-pub-date">2011</span>;<span class="cit-vol">21</span>:<span class="cit-fpage">1772</span>–<span class="cit-lpage">78</span></cite></div><div class="cit-extra"><a href="/lookup/external-ref?access_num=10.1007/s00330-011-2115-5&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=21487701&amp;link_type=MED&amp;atom=%2Fajnr%2F34%2F7%2F1468.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-34.7.1468.3" data-doi="10.1016/0021-9290(96)00023-1"><div class="cit-metadata"><ol class="cit-auth-list"><li><span class="cit-auth"><span class="cit-name-surname">Cavanaugh</span>  <span class="cit-name-given-names">JM</span></span>, </li><li><span class="cit-auth"><span class="cit-name-surname">Ozaktay</span>  <span class="cit-name-given-names">AC</span></span>, </li><li><span class="cit-auth"><span class="cit-name-surname">Yamashita</span>  <span class="cit-name-given-names">HT</span></span>, </li><li><span class="cit-etal">et al</span></li></ol><cite>. <span class="cit-article-title">Lumbar facet pain: biomechanics, neuroanatomy, and neurophysiology</span>. <abbr class="cit-jnl-abbrev">J Biomech</abbr> <span class="cit-pub-date">1996</span>;<span class="cit-vol">29</span>:<span class="cit-fpage">1117</span>–<span class="cit-lpage">29</span></cite></div><div class="cit-extra"><a href="/lookup/external-ref?access_num=10.1016/0021-9290(96)00023-1&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=8872268&amp;link_type=MED&amp;atom=%2Fajnr%2F34%2F7%2F1468.atom" class="cit-ref-sprinkles cit-ref-sprinkles-medline"><span>PubMed</span></a><a href="/lookup/external-ref?access_num=A1996VD99800001&amp;link_type=ISI" class="cit-ref-sprinkles cit-ref-sprinkles-newisilink cit-ref-sprinkles-webofscience"><span>Web of Science</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-34.7.1468.4" data-doi="10.1097/00000542-200703000-00024"><div class="cit-metadata"><ol class="cit-auth-list"><li><span class="cit-auth"><span class="cit-name-surname">Cohen</span>  <span class="cit-name-given-names">SP</span></span>, </li><li><span class="cit-auth"><span class="cit-name-surname">Raja</span>  <span class="cit-name-given-names">SN</span></span></li></ol><cite>. <span class="cit-article-title">Pathogenesis, diagnosis, and treatment of lumbar zygapophysial (facet) joint pain</span>. <abbr class="cit-jnl-abbrev">Anesthesiology</abbr> <span class="cit-pub-date">2007</span>;<span class="cit-vol">106</span>:<span class="cit-fpage">591</span>–<span class="cit-lpage">614</span></cite></div><div class="cit-extra"><a href="/lookup/external-ref?access_num=10.1097/00000542-200703000-00024&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=17325518&amp;link_type=MED&amp;atom=%2Fajnr%2F34%2F7%2F1468.atom" class="cit-ref-sprinkles cit-ref-sprinkles-medline"><span>PubMed</span></a><a href="/lookup/external-ref?access_num=000244617400023&amp;link_type=ISI" class="cit-ref-sprinkles cit-ref-sprinkles-newisilink cit-ref-sprinkles-webofscience"><span>Web of Science</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-34.7.1468.5" data-doi="10.1148/radiol.2382041930"><div class="cit-metadata"><ol class="cit-auth-list"><li><span class="cit-auth"><span class="cit-name-surname">Pneumaticos</span>  <span class="cit-name-given-names">SG</span></span>, </li><li><span class="cit-auth"><span class="cit-name-surname">Chatziioannou</span>  <span class="cit-name-given-names">SN</span></span>, </li><li><span class="cit-auth"><span class="cit-name-surname">Hipp</span>  <span class="cit-name-given-names">JA</span></span>, </li><li><span class="cit-etal">et al</span></li></ol><cite>. <span class="cit-article-title">Low back pain: prediction of short-term outcome of facet injection with bone scintigraphy</span>. <abbr class="cit-jnl-abbrev">Radiology</abbr> <span class="cit-pub-date">2006</span>;<span class="cit-vol">238</span>:<span class="cit-fpage">693</span>–<span class="cit-lpage">98</span></cite></div><div class="cit-extra"><a href="/lookup/external-ref?access_num=10.1148/radiol.2382041930&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=16436824&amp;link_type=MED&amp;atom=%2Fajnr%2F34%2F7%2F1468.atom" class="cit-ref-sprinkles cit-ref-sprinkles-medline"><span>PubMed</span></a><a href="/lookup/external-ref?access_num=000234859100037&amp;link_type=ISI" class="cit-ref-sprinkles cit-ref-sprinkles-newisilink cit-ref-sprinkles-webofscience"><span>Web of Science</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-34.7.1468.6" data-doi="10.1111/j.1526-4637.2007.00313.x"><div class="cit-metadata"><ol class="cit-auth-list"><li><span class="cit-auth"><span class="cit-name-surname">Czervionke</span>  <span class="cit-name-given-names">LF</span></span>, </li><li><span class="cit-auth"><span class="cit-name-surname">Fenton</span>  <span class="cit-name-given-names">DS</span></span></li></ol><cite>. <span class="cit-article-title">Fat-saturated MR imaging in the detection of painful facet arthropathy (facet synovitis) in the lumbar spine</span>. <abbr class="cit-jnl-abbrev">Pain Med</abbr> <span class="cit-pub-date">2008</span>;<span class="cit-vol">9</span>:<span class="cit-fpage">400</span>–<span class="cit-lpage">06</span></cite></div><div class="cit-extra"><a href="/lookup/external-ref?access_num=10.1111/j.1526-4637.2007.00313.x&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=18489631&amp;link_type=MED&amp;atom=%2Fajnr%2F34%2F7%2F1468.atom" class="cit-ref-sprinkles cit-ref-sprinkles-medline"><span>PubMed</span></a></div></div></li><li><span class="ref-label">7.</span><a class="rev-xref-ref" href="#xref-ref-7-1" title="View reference 7. in text" id="ref-7">↵</a>

<div class="cit ref-cit ref-journal" id="cit-34.7.1468.7"><div class="cit-metadata"><ol class="cit-auth-list"><li><span class="cit-auth"><span class="cit-name-surname">Qaseem</span>  <span class="cit-name-given-names">A</span></span>, </li><li><span class="cit-auth"><span class="cit-name-surname">Snow</span>  <span class="cit-name-given-names">V</span></span>, </li><li><span class="cit-auth"><span class="cit-name-surname">Shekelle</span>  <span class="cit-name-given-names">P</span></span>, </li><li><span class="cit-etal">et al</span></li></ol><cite>. <span class="cit-article-title">Screening for osteoporosis in men: a clinical practice guideline from the American College of Physicians</span>. <abbr class="cit-jnl-abbrev">Ann Intern Med</abbr> <span class="cit-pub-date">2008</span>;<span class="cit-vol">148</span>:<span class="cit-fpage">680</span>–<span class="cit-lpage">84</span></cite></div><div class="cit-extra"><a href="/lookup/external-ref?access_num=18458281&amp;link_type=MED&amp;atom=%2Fajnr%2F34%2F7%2F1468.atom" class="cit-ref-sprinkles cit-ref-sprinkles-medline"><span>PubMed</span></a><a href="/lookup/external-ref?access_num=000255731800006&amp;link_type=ISI" class="cit-ref-sprinkles cit-ref-sprinkles-newisilink cit-ref-sprinkles-webofscience"><span>Web of Science</span></a></div></div></li><li><span class="ref-label">8.</span><a class="rev-xref-ref" href="#xref-ref-8-1" title="View reference 8. in text" id="ref-8">↵</a>

<div class="cit ref-cit ref-journal" id="cit-34.7.1468.8"><div class="cit-metadata"><ol class="cit-auth-list"><li><span class="cit-auth"><span class="cit-name-surname">Voormolen</span>  <span class="cit-name-given-names">MH</span></span>, </li><li><span class="cit-auth"><span class="cit-name-surname">van Rooij</span>  <span class="cit-name-given-names">WJ</span></span>, </li><li><span class="cit-auth"><span class="cit-name-surname">van der Graf</span>  <span class="cit-name-given-names">Y</span></span>, </li><li><span class="cit-etal">et al</span></li></ol><cite>. <span class="cit-article-title">Bone marrow edema in osteoporotic vertebral compression fractures after percutaneous vertebroplasty and relation with clinical outcome</span>. <abbr class="cit-jnl-abbrev">AJNR Am J Neuroradiol</abbr> <span class="cit-pub-date">2006</span>;<span class="cit-vol">27</span>:<span class="cit-fpage">983</span>–<span class="cit-lpage">88</span></cite></div><div class="cit-extra"><a href="/lookup/ijlink/YTozOntzOjQ6InBhdGgiO3M6MTQ6Ii9sb29rdXAvaWpsaW5rIjtzOjU6InF1ZXJ5IjthOjQ6e3M6ODoibGlua1R5cGUiO3M6NDoiQUJTVCI7czoxMToiam91cm5hbENvZGUiO3M6NDoiYWpuciI7czo1OiJyZXNpZCI7czo4OiIyNy81Lzk4MyI7czo0OiJhdG9tIjtzOjIwOiIvYWpuci8zNC83LzE0NjguYXRvbSI7fXM6ODoiZnJhZ21lbnQiO3M6MDoiIjt9" 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">9.</span><a class="rev-xref-ref" href="#xref-ref-9-1" title="View reference 9. in text" id="ref-9">↵</a>

<div class="cit ref-cit ref-journal" id="cit-34.7.1468.9"><div class="cit-metadata"><ol class="cit-auth-list"><li><span class="cit-auth"><span class="cit-name-surname">Dansie</span>  <span class="cit-name-given-names">DM</span></span>, </li><li><span class="cit-auth"><span class="cit-name-surname">Luetmer</span>  <span class="cit-name-given-names">PH</span></span>, </li><li><span class="cit-auth"><span class="cit-name-surname">Lane</span>  <span class="cit-name-given-names">JI</span></span>, </li><li><span class="cit-etal">et al</span></li></ol><cite>. <span class="cit-article-title">MRI findings after successful vertebroplasty</span>. <abbr class="cit-jnl-abbrev">AJNR Am J Neuroradiol</abbr> <span class="cit-pub-date">2005</span>;<span class="cit-vol">26</span>:<span class="cit-fpage">1595</span>–<span class="cit-lpage">600</span></cite></div><div class="cit-extra"><a href="/lookup/ijlink/YTozOntzOjQ6InBhdGgiO3M6MTQ6Ii9sb29rdXAvaWpsaW5rIjtzOjU6InF1ZXJ5IjthOjQ6e3M6ODoibGlua1R5cGUiO3M6NDoiQUJTVCI7czoxMToiam91cm5hbENvZGUiO3M6NDoiYWpuciI7czo1OiJyZXNpZCI7czo5OiIyNi82LzE1OTUiO3M6NDoiYXRvbSI7czoyMDoiL2FqbnIvMzQvNy8xNDY4LmF0b20iO31zOjg6ImZyYWdtZW50IjtzOjA6IiI7fQ==" 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">10.</span><a class="rev-xref-ref" href="#xref-ref-10-1" title="View reference 10. in text" id="ref-10">↵</a>

<div class="cit ref-cit ref-book" id="cit-34.7.1468.10"><div class="cit-metadata"><ol class="cit-auth-list"><li><span class="cit-auth"><span class="cit-name-surname">Bogduk</span>  <span class="cit-name-given-names">N</span></span></li></ol><cite>. <span class="cit-source">Clinical Anatomy of the Lumbar Spine and Sacrum</span>. <span class="cit-edition">5th ed</span>. <span class="cit-publ-loc">New York</span>: <span class="cit-publ-name">Churchill Livingstone</span>; <span class="cit-pub-date">2012</span>;<span class="cit-fpage">29</span>–<span class="cit-lpage">37</span>, <span class="cit-fpage">73</span>–<span class="cit-lpage">89</span></cite></div><div class="cit-extra"></div></div></li><li><span class="ref-label">11.</span><a class="rev-xref-ref" href="#xref-ref-11-1" title="View reference 11. in text" id="ref-11">↵</a>

<div class="cit ref-cit ref-journal" id="cit-34.7.1468.11" data-doi="10.1007/s00256-007-0293-7"><div class="cit-metadata"><ol class="cit-auth-list"><li><span class="cit-auth"><span class="cit-name-surname">Friedrich</span>  <span class="cit-name-given-names">KM</span></span>, </li><li><span class="cit-auth"><span class="cit-name-surname">Nemec</span>  <span class="cit-name-given-names">S</span></span>, </li><li><span class="cit-auth"><span class="cit-name-surname">Peloschek</span>  <span class="cit-name-given-names">P</span></span>, </li><li><span class="cit-etal">et al</span></li></ol><cite>. <span class="cit-article-title">The prevalence of lumbar facet edema in patients with low back pain</span>. <abbr class="cit-jnl-abbrev">Skelet Radiol</abbr> <span class="cit-pub-date">2007</span>;<span class="cit-vol">36</span>:<span class="cit-fpage">755</span>–<span class="cit-lpage">60</span></cite></div><div class="cit-extra"><a href="/lookup/external-ref?access_num=10.1007/s00256-007-0293-7&amp;link_type=DOI" class="cit-ref-sprinkles cit-ref-sprinkles-doi cit-ref-sprinkles-crossref"><span>CrossRef</span></a></div></div></li><li><span class="ref-label">12.</span><a class="rev-xref-ref" href="#xref-ref-12-1" title="View reference 12. in text" id="ref-12">↵</a>

<div class="cit ref-cit ref-journal" id="cit-34.7.1468.12"><div class="cit-metadata"><ol class="cit-auth-list"><li><span class="cit-auth"><span class="cit-name-surname">Manchikanti</span>  <span class="cit-name-given-names">L</span></span>, </li><li><span class="cit-auth"><span class="cit-name-surname">Boswell</span>  <span class="cit-name-given-names">MV</span></span>, </li><li><span class="cit-auth"><span class="cit-name-surname">Singh</span>  <span class="cit-name-given-names">V</span></span>, </li><li><span class="cit-etal">et al</span></li></ol><cite>. <span class="cit-article-title">Comprehensive review of neurophysiologic basis and diagnostic interventions in managing chronic spinal pain</span>. <abbr class="cit-jnl-abbrev">Pain Physician</abbr> <span class="cit-pub-date">2009</span>;<span class="cit-vol">12</span>:<span class="cit-fpage">E71</span>–<span class="cit-lpage">120</span></cite></div><div class="cit-extra"><a href="/lookup/external-ref?access_num=19668292&amp;link_type=MED&amp;atom=%2Fajnr%2F34%2F7%2F1468.atom" class="cit-ref-sprinkles cit-ref-sprinkles-medline"><span>PubMed</span></a></div></div></li><li><span class="ref-label">13.</span><a class="rev-xref-ref" href="#xref-ref-13-1" title="View reference 13. in text" id="ref-13">↵</a>

<div class="cit ref-cit ref-journal" id="cit-34.7.1468.13" data-doi="10.3174/ajnr.A2775"><div class="cit-metadata"><ol class="cit-auth-list"><li><span class="cit-auth"><span class="cit-name-surname">Kamalian</span>  <span class="cit-name-given-names">S</span></span>, </li><li><span class="cit-auth"><span class="cit-name-surname">Bordia</span>  <span class="cit-name-given-names">R</span></span>, </li><li><span class="cit-auth"><span class="cit-name-surname">Ortiz</span>  <span class="cit-name-given-names">AO</span></span></li></ol><cite>. <span class="cit-article-title">Post-vertebral augmentation back pain: evaluation and management</span>. <abbr class="cit-jnl-abbrev">AJNR Am J Neuroradiol</abbr> <span class="cit-pub-date">2012</span>;<span class="cit-vol">33</span>:<span class="cit-fpage">370</span>–<span class="cit-lpage">75</span></cite></div><div class="cit-extra"><a href="/lookup/ijlink/YTozOntzOjQ6InBhdGgiO3M6MTQ6Ii9sb29rdXAvaWpsaW5rIjtzOjU6InF1ZXJ5IjthOjQ6e3M6ODoibGlua1R5cGUiO3M6NDoiQUJTVCI7czoxMToiam91cm5hbENvZGUiO3M6NDoiYWpuciI7czo1OiJyZXNpZCI7czo4OiIzMy8yLzM3MCI7czo0OiJhdG9tIjtzOjIwOiIvYWpuci8zNC83LzE0NjguYXRvbSI7fXM6ODoiZnJhZ21lbnQiO3M6MDoiIjt9" 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">14.</span><a class="rev-xref-ref" href="#xref-ref-14-1" title="View reference 14. in text" id="ref-14">↵</a>

<div class="cit ref-cit ref-journal" id="cit-34.7.1468.14" data-doi="10.1056/NEJMoa0900563"><div class="cit-metadata"><ol class="cit-auth-list"><li><span class="cit-auth"><span class="cit-name-surname">Kallmes</span>  <span class="cit-name-given-names">DF</span></span>, </li><li><span class="cit-auth"><span class="cit-name-surname">Comstock</span>  <span class="cit-name-given-names">BA</span></span>, </li><li><span class="cit-auth"><span class="cit-name-surname">Heagerty</span>  <span class="cit-name-given-names">PJ</span></span>, </li><li><span class="cit-etal">et al</span></li></ol><cite>. <span class="cit-article-title">A randomized trial of vertebroplasty for osteoporotic spinal fractures</span>. <abbr class="cit-jnl-abbrev">N Engl J Med</abbr> <span class="cit-pub-date">2009</span>;<span class="cit-vol">361</span>:<span class="cit-fpage">569</span>–<span class="cit-lpage">79</span></cite></div><div class="cit-extra"><a href="/lookup/external-ref?access_num=10.1056/NEJMoa0900563&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=19657122&amp;link_type=MED&amp;atom=%2Fajnr%2F34%2F7%2F1468.atom" class="cit-ref-sprinkles cit-ref-sprinkles-medline"><span>PubMed</span></a><a href="/lookup/external-ref?access_num=000268667300007&amp;link_type=ISI" class="cit-ref-sprinkles cit-ref-sprinkles-newisilink cit-ref-sprinkles-webofscience"><span>Web of Science</span></a></div></div></li><li><span class="ref-label">15.</span><a class="rev-xref-ref" href="#xref-ref-15-1" title="View reference 15. in text" id="ref-15">↵</a>

<div class="cit ref-cit ref-journal" id="cit-34.7.1468.15" data-doi="10.1056/NEJMoa0900429"><div class="cit-metadata"><ol class="cit-auth-list"><li><span class="cit-auth"><span class="cit-name-surname">Buchbinder</span>  <span class="cit-name-given-names">R</span></span>, </li><li><span class="cit-auth"><span class="cit-name-surname">Osborne</span>  <span class="cit-name-given-names">RH</span></span>, </li><li><span class="cit-auth"><span class="cit-name-surname">Ebeling</span>  <span class="cit-name-given-names">PR</span></span>, </li><li><span class="cit-etal">et al</span></li></ol><cite>. <span class="cit-article-title">A randomized trial of vertebroplasty for painful osteoporotic vertebral fractures</span>. <abbr class="cit-jnl-abbrev">N Engl J Med</abbr> <span class="cit-pub-date">2009</span>;<span class="cit-vol">361</span>:<span class="cit-fpage">557</span>–<span class="cit-lpage">68</span></cite></div><div class="cit-extra"><a href="/lookup/external-ref?access_num=10.1056/NEJMoa0900429&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=19657121&amp;link_type=MED&amp;atom=%2Fajnr%2F34%2F7%2F1468.atom" class="cit-ref-sprinkles cit-ref-sprinkles-medline"><span>PubMed</span></a><a href="/lookup/external-ref?access_num=000268667300006&amp;link_type=ISI" class="cit-ref-sprinkles cit-ref-sprinkles-newisilink cit-ref-sprinkles-webofscience"><span>Web of Science</span></a></div></div></li></ol></div></div>  </div>

  
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        	<div class="highwire-cite-metadata"><span  class="highwire-cite-metadata-volume highwire-cite-metadata">Vol. 34</span>, <span  class="highwire-cite-metadata-issue highwire-cite-metadata">Issue 7 </span><div  class="highwire-cite-metadata-pubdate highwire-cite-metadata">1 Jul 2013 </div></div>
      
      
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      <div class="highwire-cite-title">Facet Joint Signal Change on MRI at Levels of Acute/Subacute Lumbar Compression Fractures</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">V.T.</span> <span class="nlm-surname">Lehman</span></span>, <span class="highwire-citation-author" data-delta="1"><span class="nlm-given-names">C.P.</span> <span class="nlm-surname">Wood</span></span>, <span class="highwire-citation-author" data-delta="2"><span class="nlm-given-names">C.H.</span> <span class="nlm-surname">Hunt</span></span>, <span class="highwire-citation-author" data-delta="3"><span class="nlm-given-names">R.E.</span> <span class="nlm-surname">Carter</span></span>, <span class="highwire-citation-author" data-delta="4"><span class="nlm-given-names">J.B.</span> <span class="nlm-surname">Allred</span></span>, <span class="highwire-citation-author" data-delta="5"><span class="nlm-given-names">F.E.</span> <span class="nlm-surname">Diehn</span></span>, <span class="highwire-citation-author" data-delta="6"><span class="nlm-given-names">J.M.</span> <span class="nlm-surname">Morris</span></span>, <span class="highwire-citation-author" data-delta="7"><span class="nlm-given-names">J.T.</span> <span class="nlm-surname">Wald</span></span>, <span class="highwire-citation-author" data-delta="8"><span class="nlm-given-names">K.R.</span> <span class="nlm-surname">Thielen</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">Jul 2013, </span><span  class="highwire-cite-metadata-volume highwire-cite-metadata">34 </span><span  class="highwire-cite-metadata-issue highwire-cite-metadata">(7) </span><span  class="highwire-cite-metadata-pages highwire-cite-metadata">1468-1473; </span><span  class="highwire-cite-metadata-doi highwire-cite-metadata"><span class="label">DOI:</span> 10.3174/ajnr.A3449 </span></div>
  
  
  
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      <div class="highwire-cite-title">Facet Joint Signal Change on MRI at Levels of Acute/Subacute Lumbar Compression Fractures</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">V.T.</span> <span class="nlm-surname">Lehman</span></span>, <span class="highwire-citation-author" data-delta="1"><span class="nlm-given-names">C.P.</span> <span class="nlm-surname">Wood</span></span>, <span class="highwire-citation-author" data-delta="2"><span class="nlm-given-names">C.H.</span> <span class="nlm-surname">Hunt</span></span>, <span class="highwire-citation-author" data-delta="3"><span class="nlm-given-names">R.E.</span> <span class="nlm-surname">Carter</span></span>, <span class="highwire-citation-author" data-delta="4"><span class="nlm-given-names">J.B.</span> <span class="nlm-surname">Allred</span></span>, <span class="highwire-citation-author" data-delta="5"><span class="nlm-given-names">F.E.</span> <span class="nlm-surname">Diehn</span></span>, <span class="highwire-citation-author" data-delta="6"><span class="nlm-given-names">J.M.</span> <span class="nlm-surname">Morris</span></span>, <span class="highwire-citation-author" data-delta="7"><span class="nlm-given-names">J.T.</span> <span class="nlm-surname">Wald</span></span>, <span class="highwire-citation-author" data-delta="8"><span class="nlm-given-names">K.R.</span> <span class="nlm-surname">Thielen</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">Jul 2013, </span><span  class="highwire-cite-metadata-volume highwire-cite-metadata">34 </span><span  class="highwire-cite-metadata-issue highwire-cite-metadata">(7) </span><span  class="highwire-cite-metadata-pages highwire-cite-metadata">1468-1473; </span><span  class="highwire-cite-metadata-doi highwire-cite-metadata"><span class="label">DOI:</span> 10.3174/ajnr.A3449 </span></div>
  
  
  
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