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<meta name="DC.Title" content="Prediction of Hemorrhage after Successful Recanalization in Patients with Acute Ischemic Stroke: Improved Risk Stratification Using Dual-Energy CT Parenchymal Iodine Concentration Ratio Relative to the Superior Sagittal Sinus" />
<meta name="DC.Identifier" content="10.3174/ajnr.A6345" />
<meta name="DC.Date" content="2020-01-01" />
<meta name="DC.Publisher" content="American Journal of Neuroradiology" />
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<meta name="DC.Description" content="BACKGROUND AND PURPOSE: Brain parenchymal hyperdensity on postthrombectomy CT in patients with acute stroke can be due to hemorrhage and/or contrast staining. We aimed to determine whether iodine concentration within contrast-stained parenchyma compared with an internal reference in the superior sagittal sinus on dual-energy CT could predict subsequent intracerebral hemorrhage.

MATERIALS AND METHODS: Seventy-one patients with small infarct cores (ASPECTS ≥ 7) and good endovascular recanalization (modified TICI 2b or 3) for anterior circulation large-vessel occlusion were included. Brain parenchymal iodine concentration as per dual-energy CT and the percentage of contrast staining relative to the superior sagittal sinus were recorded and correlated with the development of intracerebral hemorrhage using Mann-Whitney U and Fisher exact tests.

RESULTS: Forty-three of 71 patients had parenchymal hyperdensity on initial dual-energy CT. The median relative iodine concentration compared with the superior sagittal sinus was significantly higher in those with subsequent intracerebral hemorrhage (137.9% versus 109.2%, P  = .007). By means of receiver operating characteristic analysis, a cutoff value of 100% (iodine concentration relative to the superior sagittal sinus) enabled identification of patients going on to develop intracerebral hemorrhage with 94.75% sensitivity, 43.4% specificity, and a likelihood ratio of 1.71.

CONCLUSIONS: Within our cohort of patients, the relative percentage of iodine concentration at dual-energy CT compared with the superior sagittal sinus was a reliable predictor of intracerebral hemorrhage development and may be a useful imaging biomarker for risk stratification after endovascular treatment.

DECT
:   dual-energy CT
ICH
:   intracerebral hemorrhage
SSS
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<meta name="DC.Contributor" content="D. Byrne" />
<meta name="DC.Contributor" content="J.P. Walsh" />
<meta name="DC.Contributor" content="H. Schmiedeskamp" />
<meta name="DC.Contributor" content="F. Settecase" />
<meta name="DC.Contributor" content="M.K.S. Heran" />
<meta name="DC.Contributor" content="B. Niu" />
<meta name="DC.Contributor" content="A.K. Salmeen" />
<meta name="DC.Contributor" content="B. Rohr" />
<meta name="DC.Contributor" content="T.S. Field" />
<meta name="DC.Contributor" content="N. Murray" />
<meta name="DC.Contributor" content="A. Rohr" />
<meta name="article:published_time" content="2020-01-01" />
<meta name="article:section" content="Adult Brain" />
<meta name="citation_title" content="Prediction of Hemorrhage after Successful Recanalization in Patients with Acute Ischemic Stroke: Improved Risk Stratification Using Dual-Energy CT Parenchymal Iodine Concentration Ratio Relative to the Superior Sagittal Sinus" />
<meta name="citation_abstract" lang="en" content="&lt;h3&gt;BACKGROUND AND PURPOSE:&lt;/h3&gt;
&lt;p&gt;Brain parenchymal hyperdensity on postthrombectomy CT in patients with acute stroke can be due to hemorrhage and/or contrast staining. We aimed to determine whether iodine concentration within contrast-stained parenchyma compared with an internal reference in the superior sagittal sinus on dual-energy CT could predict subsequent intracerebral hemorrhage.&lt;/p&gt;&lt;h3&gt;MATERIALS AND METHODS:&lt;/h3&gt;
&lt;p&gt;Seventy-one patients with small infarct cores (ASPECTS ≥ 7) and good endovascular recanalization (modified TICI 2b or 3) for anterior circulation large-vessel occlusion were included. Brain parenchymal iodine concentration as per dual-energy CT and the percentage of contrast staining relative to the superior sagittal sinus were recorded and correlated with the development of intracerebral hemorrhage using Mann-Whitney &lt;i&gt;U&lt;/i&gt; and Fisher exact tests.&lt;/p&gt;&lt;h3&gt;RESULTS:&lt;/h3&gt;
&lt;p&gt;Forty-three of 71 patients had parenchymal hyperdensity on initial dual-energy CT. The median relative iodine concentration compared with the superior sagittal sinus was significantly higher in those with subsequent intracerebral hemorrhage (137.9% versus 109.2%, &lt;i&gt;P &lt;/i&gt;= .007). By means of receiver operating characteristic analysis, a cutoff value of 100% (iodine concentration relative to the superior sagittal sinus) enabled identification of patients going on to develop intracerebral hemorrhage with 94.75% sensitivity, 43.4% specificity, and a likelihood ratio of 1.71.&lt;/p&gt;&lt;h3&gt;CONCLUSIONS:&lt;/h3&gt;
&lt;p&gt;Within our cohort of patients, the relative percentage of iodine concentration at dual-energy CT compared with the superior sagittal sinus was a reliable predictor of intracerebral hemorrhage development and may be a useful imaging biomarker for risk stratification after endovascular treatment.&lt;/p&gt;" />
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<meta name="twitter:title" content="Prediction of Hemorrhage after Successful Recanalization in Patients with Acute Ischemic Stroke: Improved Risk Stratification Using Dual-Energy CT Parenchymal Iodine Concentration Ratio Relative to the Superior Sagittal Sinus" />
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<meta name="twitter:description" content="BACKGROUND AND PURPOSE: Brain parenchymal hyperdensity on postthrombectomy CT in patients with acute stroke can be due to hemorrhage and/or contrast staining. We aimed to determine whether iodine concentration within contrast-stained parenchyma compared with an internal reference in the superior sagittal sinus on dual-energy CT could predict subsequent intracerebral hemorrhage.

MATERIALS AND METHODS: Seventy-one patients with small infarct cores (ASPECTS ≥ 7) and good endovascular recanalization (modified TICI 2b or 3) for anterior circulation large-vessel occlusion were included. Brain parenchymal iodine concentration as per dual-energy CT and the percentage of contrast staining relative to the superior sagittal sinus were recorded and correlated with the development of intracerebral hemorrhage using Mann-Whitney U and Fisher exact tests.

RESULTS: Forty-three of 71 patients had parenchymal hyperdensity on initial dual-energy CT. The median relative iodine concentration compared with the superior sagittal sinus was significantly higher in those with subsequent intracerebral hemorrhage (137.9% versus 109.2%, P  = .007). By means of receiver operating characteristic analysis, a cutoff value of 100% (iodine concentration relative to the superior sagittal sinus) enabled identification of patients going on to develop intracerebral hemorrhage with 94.75% sensitivity, 43.4% specificity, and a likelihood ratio of 1.71.

CONCLUSIONS: Within our cohort of patients, the relative percentage of iodine concentration at dual-energy CT compared with the superior sagittal sinus was a reliable predictor of intracerebral hemorrhage development and may be a useful imaging biomarker for risk stratification after endovascular treatment.

DECT
:   dual-energy CT
ICH
:   intracerebral hemorrhage
SSS
:   superior sagittal sinus" />
<meta name="og-title" property="og:title" content="Prediction of Hemorrhage after Successful Recanalization in Patients with Acute Ischemic Stroke: Improved Risk Stratification Using Dual-Energy CT Parenchymal Iodine Concentration Ratio Relative to the Superior Sagittal Sinus" />
<meta name="og-url" property="og:url" content="http://ajnr-stage2.stage.highwire.org/content/41/1/64" />
<meta name="og-site-name" property="og:site_name" content="American Journal of Neuroradiology" />
<meta name="og-description" property="og:description" content="BACKGROUND AND PURPOSE: Brain parenchymal hyperdensity on postthrombectomy CT in patients with acute stroke can be due to hemorrhage and/or contrast staining. We aimed to determine whether iodine concentration within contrast-stained parenchyma compared with an internal reference in the superior sagittal sinus on dual-energy CT could predict subsequent intracerebral hemorrhage.

MATERIALS AND METHODS: Seventy-one patients with small infarct cores (ASPECTS ≥ 7) and good endovascular recanalization (modified TICI 2b or 3) for anterior circulation large-vessel occlusion were included. Brain parenchymal iodine concentration as per dual-energy CT and the percentage of contrast staining relative to the superior sagittal sinus were recorded and correlated with the development of intracerebral hemorrhage using Mann-Whitney U and Fisher exact tests.

RESULTS: Forty-three of 71 patients had parenchymal hyperdensity on initial dual-energy CT. The median relative iodine concentration compared with the superior sagittal sinus was significantly higher in those with subsequent intracerebral hemorrhage (137.9% versus 109.2%, P  = .007). By means of receiver operating characteristic analysis, a cutoff value of 100% (iodine concentration relative to the superior sagittal sinus) enabled identification of patients going on to develop intracerebral hemorrhage with 94.75% sensitivity, 43.4% specificity, and a likelihood ratio of 1.71.

CONCLUSIONS: Within our cohort of patients, the relative percentage of iodine concentration at dual-energy CT compared with the superior sagittal sinus was a reliable predictor of intracerebral hemorrhage development and may be a useful imaging biomarker for risk stratification after endovascular treatment.

DECT
:   dual-energy CT
ICH
:   intracerebral hemorrhage
SSS
:   superior sagittal sinus" />
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      <div class="highwire-cite-overline"><span  class="highwire-cite-metadata-article-type highwire-cite-metadata">Research Article</span><span class="separator-pipe"></span><span  class="highwire-cite-metadata-art-cat highwire-cite-metadata"><span class="wrapper">Adult Brain</span></span></div>
  
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      <h1 class="highwire-cite-title" id="page-title">Prediction of Hemorrhage after Successful Recanalization in Patients with Acute Ischemic Stroke: Improved Risk Stratification Using Dual-Energy CT Parenchymal Iodine Concentration Ratio Relative to the Superior Sagittal Sinus</h1>  
    	<div class="highwire-cite-authors"><span  class="highwire-citation-authors"><span class="highwire-citation-author first" data-delta="0">D. Byrne</span>, <span class="highwire-citation-author" data-delta="1">J.P. Walsh</span>, <span class="highwire-citation-author" data-delta="2">H. Schmiedeskamp</span>, <span class="highwire-citation-author" data-delta="3">F. Settecase</span>, <span class="highwire-citation-author" data-delta="4">M.K.S. Heran</span>, <span class="highwire-citation-author" data-delta="5">B. Niu</span>, <span class="highwire-citation-author" data-delta="6">A.K. Salmeen</span>, <span class="highwire-citation-author" data-delta="7">B. Rohr</span>, <span class="highwire-citation-author" data-delta="8">T.S. Field</span>, <span class="highwire-citation-author" data-delta="9">N. Murray</span> and <span class="highwire-citation-author" data-delta="10">A. Rohr</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">January 2020,  </span><span  class="highwire-cite-metadata-volume highwire-cite-metadata">41 </span><span  class="highwire-cite-metadata-issue highwire-cite-metadata">(1) </span><span  class="highwire-cite-metadata-pages highwire-cite-metadata">64-70; </span><span  class="highwire-cite-metadata-doi highwire-cite-metadata">DOI: https://doi.org/10.3174/ajnr.A6345 </span></div>
  
  
  
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<div id="hw-article-author-popups-top-node-72465--61630652391" style="display: none;"><div class="author-tooltip-0"><div class="author-tooltip-name">D. Byrne </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 (D.B., F.S., M.K.S.H., A.R.)</div><div class='author-affiliation'><span class='nlm-sup'>f</span>University of British Columbia (D.B., J.P.W., F.S., M.K.S.H., B.R., T.S.F., N.M., A.R.), Vancouver, British Columbia, Canada.</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=D.%2BByrne%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=Byrne%20D&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%3AD.%2BByrne%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="https://orcid.org/0000-0002-8168-2159" target="_blank" class="" data-icon-position="" data-hide-link-title="0">ORCID record for D. Byrne</a></li></ul></div><div class="author-tooltip-1"><div class="author-tooltip-name">J.P. Walsh </div><div class="author-tooltip-affiliation"><span class="author-tooltip-text"><div class='author-affiliation'><span class='nlm-sup'>b</span>Department of Emergency Radiology (J.P.W., N.M.)</div><div class='author-affiliation'><span class='nlm-sup'>f</span>University of British Columbia (D.B., J.P.W., F.S., M.K.S.H., B.R., T.S.F., N.M., A.R.), Vancouver, British Columbia, Canada.</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.P.%2BWalsh%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=Walsh%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.P.%2BWalsh%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="https://orcid.org/0000-0002-9859-9685" target="_blank" class="" data-icon-position="" data-hide-link-title="0">ORCID record for J.P. Walsh</a></li></ul></div><div class="author-tooltip-2"><div class="author-tooltip-name">H. Schmiedeskamp </div><div class="author-tooltip-affiliation"><span class="author-tooltip-text"><div class='author-affiliation'><span class='nlm-sup'>d</span>Siemens Medical Solutions USA (H.S.), Malvern, Pennsylvania</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.%2BSchmiedeskamp%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=Schmiedeskamp%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.%2BSchmiedeskamp%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="https://orcid.org/0000-0003-3968-457X" target="_blank" class="" data-icon-position="" data-hide-link-title="0">ORCID record for H. Schmiedeskamp</a></li></ul></div><div class="author-tooltip-3"><div class="author-tooltip-name">F. Settecase </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 (D.B., F.S., M.K.S.H., A.R.)</div><div class='author-affiliation'><span class='nlm-sup'>f</span>University of British Columbia (D.B., J.P.W., F.S., M.K.S.H., B.R., T.S.F., N.M., A.R.), Vancouver, British Columbia, Canada.</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.%2BSettecase%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=Settecase%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"><a href="/search/author1%3AF.%2BSettecase%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="https://orcid.org/0000-0002-5829-3163" target="_blank" class="" data-icon-position="" data-hide-link-title="0">ORCID record for F. Settecase</a></li></ul></div><div class="author-tooltip-4"><div class="author-tooltip-name">M.K.S. Heran </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 (D.B., F.S., M.K.S.H., A.R.)</div><div class='author-affiliation'><span class='nlm-sup'>f</span>University of British Columbia (D.B., J.P.W., F.S., M.K.S.H., B.R., T.S.F., N.M., A.R.), Vancouver, British Columbia, Canada.</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=M.K.S.%2BHeran%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=Heran%20M&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%3AM.K.S.%2BHeran%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="https://orcid.org/0000-0003-0040-6054" target="_blank" class="" data-icon-position="" data-hide-link-title="0">ORCID record for M.K.S. Heran</a></li></ul></div><div class="author-tooltip-5"><div class="author-tooltip-name">B. Niu </div><div class="author-tooltip-affiliation"><span class="author-tooltip-text"><div class='author-affiliation'><span class='nlm-sup'>c</span>Vancouver Imaging (B.N.), Vancouver General Hospital, Vancouver, British Columbia, Canada</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=B.%2BNiu%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=Niu%20B&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%3AB.%2BNiu%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="https://orcid.org/0000-0002-9295-2564" target="_blank" class="" data-icon-position="" data-hide-link-title="0">ORCID record for B. Niu</a></li></ul></div><div class="author-tooltip-6"><div class="author-tooltip-name">A.K. Salmeen </div><div class="author-tooltip-affiliation"><span class="author-tooltip-text"><div class='author-affiliation'><span class='nlm-sup'>e</span>Division of Neurology (A.K.S., T.S.F.), Department of Medicine, Vancouver Stroke Program, Brain Research Center, University of British Columbia, Vancouver, British Columbia, Canada</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=A.K.%2BSalmeen%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=Salmeen%20A&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%3AA.K.%2BSalmeen%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="https://orcid.org/0000-0003-0469-8955" target="_blank" class="" data-icon-position="" data-hide-link-title="0">ORCID record for A.K. Salmeen</a></li></ul></div><div class="author-tooltip-7"><div class="author-tooltip-name">B. Rohr </div><div class="author-tooltip-affiliation"><span class="author-tooltip-text"><div class='author-affiliation'><span class='nlm-sup'>f</span>University of British Columbia (D.B., J.P.W., F.S., M.K.S.H., B.R., T.S.F., N.M., A.R.), Vancouver, British Columbia, Canada.</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=B.%2BRohr%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=Rohr%20B&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%3AB.%2BRohr%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="https://orcid.org/0000-0001-9008-6204" target="_blank" class="" data-icon-position="" data-hide-link-title="0">ORCID record for B. Rohr</a></li></ul></div><div class="author-tooltip-8"><div class="author-tooltip-name">T.S. Field </div><div class="author-tooltip-affiliation"><span class="author-tooltip-text"><div class='author-affiliation'><span class='nlm-sup'>e</span>Division of Neurology (A.K.S., T.S.F.), Department of Medicine, Vancouver Stroke Program, Brain Research Center, University of British Columbia, Vancouver, British Columbia, Canada</div><div class='author-affiliation'><span class='nlm-sup'>f</span>University of British Columbia (D.B., J.P.W., F.S., M.K.S.H., B.R., T.S.F., N.M., A.R.), Vancouver, British Columbia, Canada.</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.S.%2BField%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=Field%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.S.%2BField%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="https://orcid.org/0000-0002-1176-0633" target="_blank" class="" data-icon-position="" data-hide-link-title="0">ORCID record for T.S. 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Murray </div><div class="author-tooltip-affiliation"><span class="author-tooltip-text"><div class='author-affiliation'><span class='nlm-sup'>b</span>Department of Emergency Radiology (J.P.W., N.M.)</div><div class='author-affiliation'><span class='nlm-sup'>f</span>University of British Columbia (D.B., J.P.W., F.S., M.K.S.H., B.R., T.S.F., N.M., A.R.), Vancouver, British Columbia, Canada.</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.%2BMurray%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=Murray%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.%2BMurray%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="https://orcid.org/0000-0002-1832-7453" target="_blank" class="" data-icon-position="" data-hide-link-title="0">ORCID record for N. 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Rohr </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 (D.B., F.S., M.K.S.H., A.R.)</div><div class='author-affiliation'><span class='nlm-sup'>f</span>University of British Columbia (D.B., J.P.W., F.S., M.K.S.H., B.R., T.S.F., N.M., A.R.), Vancouver, British Columbia, Canada.</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=A.%2BRohr%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=Rohr%20A&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%3AA.%2BRohr%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="https://orcid.org/0000-0003-4684-7920" target="_blank" class="" data-icon-position="" data-hide-link-title="0">ORCID record for A. 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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 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-41.1.64.1" data-doi="10.1161/01.STR.30.11.2280"><div class="cit-metadata"><ol class="cit-auth-list"><li><span class="cit-auth"><span class="cit-name-surname">Fiorelli</span>  <span class="cit-name-given-names">M</span></span>, </li><li><span class="cit-auth"><span class="cit-name-surname">Bastianello</span>  <span class="cit-name-given-names">S</span></span>, </li><li><span class="cit-auth"><span class="cit-name-surname">von Kummer</span>  <span class="cit-name-given-names">R</span></span>, <span class="cit-etal">et al</span></li></ol><cite>. <span class="cit-article-title">Hemorrhagic 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<span class="cit-pub-date">2018</span>;<span class="cit-vol">287</span>:<span class="cit-fpage">224</span>–<span class="cit-lpage">34</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.2017170896</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>29185902</span></cite></div><div class="cit-extra"><a href="/lookup/external-ref?access_num=10.1148/radiol.2017170896&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=29185902&amp;link_type=MED&amp;atom=%2Fajnr%2F41%2F1%2F64.atom" class="cit-ref-sprinkles cit-ref-sprinkles-medline"><span>PubMed</span></a></div></div></li></ol></div></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">D.</span> <span class="nlm-surname">Byrne</span></span>, <span class="highwire-citation-author" data-delta="1"><span class="nlm-given-names">J.P.</span> <span class="nlm-surname">Walsh</span></span>, <span class="highwire-citation-author" data-delta="2"><span class="nlm-given-names">H.</span> <span class="nlm-surname">Schmiedeskamp</span></span>, <span class="highwire-citation-author" data-delta="3"><span class="nlm-given-names">F.</span> <span class="nlm-surname">Settecase</span></span>, <span class="highwire-citation-author" data-delta="4"><span class="nlm-given-names">M.K.S.</span> <span class="nlm-surname">Heran</span></span>, <span class="highwire-citation-author" data-delta="5"><span class="nlm-given-names">B.</span> <span class="nlm-surname">Niu</span></span>, <span class="highwire-citation-author" data-delta="6"><span class="nlm-given-names">A.K.</span> <span class="nlm-surname">Salmeen</span></span>, <span class="highwire-citation-author" data-delta="7"><span class="nlm-given-names">B.</span> <span class="nlm-surname">Rohr</span></span>, <span class="highwire-citation-author" data-delta="8"><span class="nlm-given-names">T.S.</span> <span class="nlm-surname">Field</span></span>, <span class="highwire-citation-author" data-delta="9"><span class="nlm-given-names">N.</span> <span class="nlm-surname">Murray</span></span>, <span class="highwire-citation-author" data-delta="10"><span class="nlm-given-names">A.</span> <span class="nlm-surname">Rohr</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">Jan 2020, </span><span  class="highwire-cite-metadata-volume highwire-cite-metadata">41 </span><span  class="highwire-cite-metadata-issue highwire-cite-metadata">(1) </span><span  class="highwire-cite-metadata-pages highwire-cite-metadata">64-70; </span><span  class="highwire-cite-metadata-doi highwire-cite-metadata"><span class="label">DOI:</span> 10.3174/ajnr.A6345 </span></div>
  
  
  
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      <div class="highwire-cite-title">Prediction of Hemorrhage after Successful Recanalization in Patients with Acute Ischemic Stroke: Improved Risk Stratification Using Dual-Energy CT Parenchymal Iodine Concentration Ratio Relative to the Superior Sagittal Sinus</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">D.</span> <span class="nlm-surname">Byrne</span></span>, <span class="highwire-citation-author" data-delta="1"><span class="nlm-given-names">J.P.</span> <span class="nlm-surname">Walsh</span></span>, <span class="highwire-citation-author" data-delta="2"><span class="nlm-given-names">H.</span> <span class="nlm-surname">Schmiedeskamp</span></span>, <span class="highwire-citation-author" data-delta="3"><span class="nlm-given-names">F.</span> <span class="nlm-surname">Settecase</span></span>, <span class="highwire-citation-author" data-delta="4"><span class="nlm-given-names">M.K.S.</span> <span class="nlm-surname">Heran</span></span>, <span class="highwire-citation-author" data-delta="5"><span class="nlm-given-names">B.</span> <span class="nlm-surname">Niu</span></span>, <span class="highwire-citation-author" data-delta="6"><span class="nlm-given-names">A.K.</span> <span class="nlm-surname">Salmeen</span></span>, <span class="highwire-citation-author" data-delta="7"><span class="nlm-given-names">B.</span> <span class="nlm-surname">Rohr</span></span>, <span class="highwire-citation-author" data-delta="8"><span class="nlm-given-names">T.S.</span> <span class="nlm-surname">Field</span></span>, <span class="highwire-citation-author" data-delta="9"><span class="nlm-given-names">N.</span> <span class="nlm-surname">Murray</span></span>, <span class="highwire-citation-author" data-delta="10"><span class="nlm-given-names">A.</span> <span class="nlm-surname">Rohr</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">Jan 2020, </span><span  class="highwire-cite-metadata-volume highwire-cite-metadata">41 </span><span  class="highwire-cite-metadata-issue highwire-cite-metadata">(1) </span><span  class="highwire-cite-metadata-pages highwire-cite-metadata">64-70; </span><span  class="highwire-cite-metadata-doi highwire-cite-metadata"><span class="label">DOI:</span> 10.3174/ajnr.A6345 </span></div>
  
  
  
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