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<meta name="DC.Description" content="The MR scans of seven patients with intracranial carotid occlusion (five proved, two presumed) were reviewed to evaluate the MR signal characteristics seen in this disorder. Five patients had clinical signs of cerebral infarction. Of the remaining two patients, one was asymptomatic and the other had a long-standing occlusion and headaches. We correlated the MR findings with cerebral angiography in five patients and with CT scans in six patients. All occluded vessels demonstrated MR signal predominantly isointense to brain on proton-density- T1- and T2-weighted images. Since there is an absence of flow, the MR signal is based on the intrinsic properties of the arterial thrombus and possibly on the chronicity of the occlusion. The pathogenesis and histopathology of intravascular thrombus differ significantly from extravascular hematoma, which accounts for the differences in their MR signal characteristics.

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The demonstration of occluded intracranial vessels may solidify the diagnosis of stroke in cases in which clinical and/or CT findings are equivocal. In patients presenting with infarction, an occluded carotid artery by MR may obviate the need for angiography; however, the demonstration of a patent carotid in conjunction with infarction suggests the possibility of an embolus, which may require angiography. We believe that MR is a valuable adjunct to CT in evaluating patients with cerebrovascular infarction." />
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      <h1 class="highwire-cite-title" id="page-title">MR Imaging of Intracranial Carotid Occlusion</h1>  
    	<div class="highwire-cite-authors"><span  class="highwire-citation-authors"><span class="highwire-citation-author first" data-delta="0">Barry H. Katz</span>, <span class="highwire-citation-author" data-delta="1">Robert M. Quencer</span>, <span class="highwire-citation-author" data-delta="2">Jack O. Kaplan</span>, <span class="highwire-citation-author" data-delta="3">R. Scott Hinks</span> and <span class="highwire-citation-author" data-delta="4">M. Judith Donovan Post</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">March 1989,  </span><span  class="highwire-cite-metadata-volume highwire-cite-metadata">10 </span><span  class="highwire-cite-metadata-issue highwire-cite-metadata">(2) </span><span  class="highwire-cite-metadata-pages highwire-cite-metadata">345-350; </span></div>
  
  
  
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<div id="hw-article-author-popups-top-node-13377--8957629562" style="display: none;"><div class="author-tooltip-0"><div class="author-tooltip-name">Barry H. Katz </div><div class="author-tooltip-affiliation"><span class="author-tooltip-text"><div class='author-affiliation'><span class='nlm-sup'>1</span> Department of Radiology, University of Miami/Jackson Memorial Medical Center, Miami, FL. Address reprint requests to R. M. Quencer, Department of Radiology (R-308), University of Miami MRI Center, 1115 N.W. 14th St., Miami, FL 33136.</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=Barry%2BH.%2BKatz%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=Katz%20BH&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%3ABarry%2BH.%2BKatz%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">Robert M. Quencer </div><div class="author-tooltip-affiliation"><span class="author-tooltip-text"><div class='author-affiliation'><span class='nlm-sup'>1</span> Department of Radiology, University of Miami/Jackson Memorial Medical Center, Miami, FL. Address reprint requests to R. M. Quencer, Department of Radiology (R-308), University of Miami MRI Center, 1115 N.W. 14th St., Miami, FL 33136.</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=Robert%2BM.%2BQuencer%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=Quencer%20RM&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%3ARobert%2BM.%2BQuencer%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">Jack O. Kaplan </div><div class="author-tooltip-affiliation"><span class="author-tooltip-text"><div class='author-affiliation'><span class='nlm-sup'>1</span> Department of Radiology, University of Miami/Jackson Memorial Medical Center, Miami, FL. Address reprint requests to R. M. Quencer, Department of Radiology (R-308), University of Miami MRI Center, 1115 N.W. 14th St., Miami, FL 33136.</div><div class='author-affiliation'><span class='nlm-sup'>2</span> Department of Medical Imaging, Baptist Hospital of Miami, Miami, FL 33176.</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=Jack%2BO.%2BKaplan%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=Kaplan%20JO&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%3AJack%2BO.%2BKaplan%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. Scott Hinks </div><div class="author-tooltip-affiliation"><span class="author-tooltip-text"><div class='author-affiliation'><span class='nlm-sup'>1</span> Department of Radiology, University of Miami/Jackson Memorial Medical Center, Miami, FL. Address reprint requests to R. M. Quencer, Department of Radiology (R-308), University of Miami MRI Center, 1115 N.W. 14th St., Miami, FL 33136.</div><div class='author-affiliation'><span class='nlm-sup'>3</span> Picker International, Inc., NMR Imaging Research at the University of Miami, Miami, FL 33101.</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.%2BScott%2BHinks%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=Hinks%20RS&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.%2BScott%2BHinks%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">M. Judith Donovan Post </div><div class="author-tooltip-affiliation"><span class="author-tooltip-text"><div class='author-affiliation'><span class='nlm-sup'>1</span> Department of Radiology, University of Miami/Jackson Memorial Medical Center, Miami, FL. Address reprint requests to R. M. 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    <div class="highwire-markup"><div xmlns="http://www.w3.org/1999/xhtml" class="content-block-markup" xmlns:xhtml="http://www.w3.org/1999/xhtml"><div xmlns:xhtml="http://www.w3.org/1999/xhtml" class="contributors"><ol class="contributor-list" id="contrib-group-1"><li class="contributor" id="contrib-1"><span class="name">Barry H. Katz</span><a id="xref-aff-1-1" class="xref-aff" href="#aff-1">1</a>, </li><li class="contributor" id="contrib-2"><span class="name">Robert M. Quencer</span><a id="xref-aff-1-2" class="xref-aff" href="#aff-1">1</a>, </li><li class="contributor" id="contrib-3"><span class="name">Jack O. Kaplan</span><a id="xref-aff-1-3" class="xref-aff" href="#aff-1">1</a><span class="xref-sep">,</span><a id="xref-aff-2-1" class="xref-aff" href="#aff-2">2</a>, </li><li class="contributor" id="contrib-4"><span class="name">R. Scott Hinks</span><a id="xref-aff-1-4" class="xref-aff" href="#aff-1">1</a><span class="xref-sep">,</span><a id="xref-aff-3-1" class="xref-aff" href="#aff-3">3</a> and </li><li class="last" id="contrib-5"><span class="name">M. Judith Donovan Post</span><a id="xref-aff-1-5" class="xref-aff" href="#aff-1">1</a></li></ol><ol class="affiliation-list"><li class="aff"><a id="aff-1" name="aff-1"></a><address><sup>1</sup> Department of Radiology, University of Miami/Jackson Memorial Medical Center, Miami, FL. Address reprint requests to R. M. Quencer, Department of Radiology (R-308), University of Miami MRI Center, 1115 N.W. 14th St., Miami, FL 33136.</address></li><li class="aff"><a id="aff-2" name="aff-2"></a><address><sup>2</sup> Department of Medical Imaging, Baptist Hospital of Miami, Miami, FL 33176.</address></li><li class="aff"><a id="aff-3" name="aff-3"></a><address><sup>3</sup> Picker International, Inc., NMR Imaging Research at the University of Miami, Miami, FL 33101.</address></li></ol></div></div></div>  </div>

  
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        	<div class="highwire-cite-metadata"><span  class="highwire-cite-metadata-volume highwire-cite-metadata">Vol. 10</span>, <span  class="highwire-cite-metadata-issue highwire-cite-metadata">Issue 2 </span><div  class="highwire-cite-metadata-pubdate highwire-cite-metadata">1 Mar 1989 </div></div>
      
      
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