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<meta name="DC.Title" content="Endovascular Treatment Decisions in Patients with M2 Segment MCA Occlusions" />
<meta name="DC.Identifier" content="10.3174/ajnr.A6397" />
<meta name="DC.Date" content="2020-02-01" />
<meta name="DC.Publisher" content="American Journal of Neuroradiology" />
<meta name="DC.Rights" content="© 2020 by American Journal of Neuroradiology" />
<meta name="DC.AccessRights" content="restricted" />
<meta name="DC.Description" content="BACKGROUND AND PURPOSE: Endovascular therapy in acute ischemic stroke is rapidly evolving. We explored physicians’ treatment attitudes and practice in patients with acute ischemic stroke due to M2 occlusion, given the absence of Level-1 guidelines.

MATERIALS AND METHODS: We conducted an international multidisciplinary survey among physicians involved in acute stroke care. Respondents were presented with 10 of 22 case scenarios (4 with proximal M2 occlusions and 1 with a small-branch M2 occlusion) and asked about their treatment approach under A) current local resources, and B) assumed ideal conditions (no monetary or infrastructural restraints). Overall treatment decisions were evaluated; subgroup analyses by physician and patient baseline characteristics were performed.

RESULTS: A total of 607 physicians participated. Most of the respondents decided in favor of endovascular therapy in M2 occlusions, both under current local resources and assumed ideal conditions (65.4% versus 69.6%; P = .017). Under current local resources, older patient age ( P &lt; .001), longer time since symptom onset ( P &lt; .001), high center endovascular therapy volume ( P &lt; .001), high personal endovascular therapy volume ( P = .005), and neurosurgeons ( P &lt; .001) were more likely to favor endovascular therapy. European respondents were less likely to favor endovascular therapy ( P = .001). Under assumed ideal conditions, older patient age ( P &lt; .001), longer time since symptom onset ( P &lt; .001), high center endovascular therapy volume ( P = .041), high personal endovascular therapy volume ( P = .002), and Asian respondents were more likely to favor endovascular therapy ( P = .037). Respondents with more experience ( P = .048) and high annual stroke thrombolysis treatment volume ( P = .001) were less likely to favor endovascular therapy.

CONCLUSIONS: Patients with M2 occlusions are considered appropriate candidates for endovascular therapy by most respondents in this survey, especially by those performing endovascular therapy more often and those practicing in high-volume centers.

EVT
:   endovascular therapy
IQR
:   interquartile range" />
<meta name="DC.Contributor" content="M. Almekhlafi" />
<meta name="DC.Contributor" content="J.M. Ospel" />
<meta name="DC.Contributor" content="G. Saposnik" />
<meta name="DC.Contributor" content="N. Kashani" />
<meta name="DC.Contributor" content="A. Demchuk" />
<meta name="DC.Contributor" content="M.D. Hill" />
<meta name="DC.Contributor" content="M. Goyal" />
<meta name="DC.Contributor" content="B.K. Menon" />
<meta name="article:published_time" content="2020-02-01" />
<meta name="article:section" content="Interventional" />
<meta name="citation_title" content="Endovascular Treatment Decisions in Patients with M2 Segment MCA Occlusions" />
<meta name="citation_abstract" lang="en" content="&lt;h3&gt;BACKGROUND AND PURPOSE:&lt;/h3&gt;
&lt;p&gt;Endovascular therapy in acute ischemic stroke is rapidly evolving. We explored physicians’ treatment attitudes and practice in patients with acute ischemic stroke due to M2 occlusion, given the absence of Level-1 guidelines.&lt;/p&gt;&lt;h3&gt;MATERIALS AND METHODS:&lt;/h3&gt;
&lt;p&gt;We conducted an international multidisciplinary survey among physicians involved in acute stroke care. Respondents were presented with 10 of 22 case scenarios (4 with proximal M2 occlusions and 1 with a small-branch M2 occlusion) and asked about their treatment approach under A) current local resources, and B) assumed ideal conditions (no monetary or infrastructural restraints). Overall treatment decisions were evaluated; subgroup analyses by physician and patient baseline characteristics were performed.&lt;/p&gt;&lt;h3&gt;RESULTS:&lt;/h3&gt;
&lt;p&gt;A total of 607 physicians participated. Most of the respondents decided in favor of endovascular therapy in M2 occlusions, both under current local resources and assumed ideal conditions (65.4% versus 69.6%; &lt;i&gt;P&lt;/i&gt; = .017). Under current local resources, older patient age (&lt;i&gt;P&lt;/i&gt; &amp;lt; .001), longer time since symptom onset (&lt;i&gt;P&lt;/i&gt; &amp;lt; .001), high center endovascular therapy volume (&lt;i&gt;P&lt;/i&gt; &amp;lt; .001), high personal endovascular therapy volume (&lt;i&gt;P&lt;/i&gt; = .005), and neurosurgeons (&lt;i&gt;P&lt;/i&gt; &amp;lt; .001) were more likely to favor endovascular therapy. European respondents were less likely to favor endovascular therapy (&lt;i&gt;P&lt;/i&gt; = .001). Under assumed ideal conditions, older patient age (&lt;i&gt;P&lt;/i&gt; &amp;lt; .001), longer time since symptom onset (&lt;i&gt;P&lt;/i&gt; &amp;lt; .001), high center endovascular therapy volume (&lt;i&gt;P&lt;/i&gt; = .041), high personal endovascular therapy volume (&lt;i&gt;P&lt;/i&gt; = .002), and Asian respondents were more likely to favor endovascular therapy (&lt;i&gt;P&lt;/i&gt; = .037). Respondents with more experience (&lt;i&gt;P&lt;/i&gt; = .048) and high annual stroke thrombolysis treatment volume (&lt;i&gt;P&lt;/i&gt; = .001) were less likely to favor endovascular therapy.&lt;/p&gt;&lt;h3&gt;CONCLUSIONS:&lt;/h3&gt;
&lt;p&gt;Patients with M2 occlusions are considered appropriate candidates for endovascular therapy by most respondents in this survey, especially by those performing endovascular therapy more often and those practicing in high-volume centers.&lt;/p&gt;" />
<meta name="citation_journal_title" content="American Journal of Neuroradiology" />
<meta name="citation_publisher" content="American Journal of Neuroradiology" />
<meta name="citation_publication_date" content="2020/02/01" />
<meta name="citation_mjid" content="ajnr;41/2/280" />
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<meta name="citation_firstpage" content="280" />
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<meta name="citation_author" content="M. Almekhlafi" />
<meta name="citation_author_institution" content="aFrom the Department of Clinical Neurosciences (M.A., J.M.O., A.D., M.D.H., M.G., B.K.M.), Hotchkiss Brain Institute" />
<meta name="citation_author_institution" content="band Departments of Radiology (M.A., N.K., A.D., M.D.H., M.G., B.K.M.) and" />
<meta name="citation_author_institution" content="cCommunity Health Sciences (M.A., M.D.H., B.K.M.), University of Calgary, Calgary, Alberta, Canada" />
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<meta name="citation_author_institution" content="aFrom the Department of Clinical Neurosciences (M.A., J.M.O., A.D., M.D.H., M.G., B.K.M.), Hotchkiss Brain Institute" />
<meta name="citation_author_institution" content="dDepartment of Radiology (J.M.O.), University Hospital Basel, University Basel, Basel, Switzerland" />
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<meta name="twitter:title" content="Endovascular Treatment Decisions in Patients with M2 Segment MCA Occlusions" />
<meta name="twitter:card" content="summary_large_image" />
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<meta name="twitter:description" content="BACKGROUND AND PURPOSE: Endovascular therapy in acute ischemic stroke is rapidly evolving. We explored physicians’ treatment attitudes and practice in patients with acute ischemic stroke due to M2 occlusion, given the absence of Level-1 guidelines.

MATERIALS AND METHODS: We conducted an international multidisciplinary survey among physicians involved in acute stroke care. Respondents were presented with 10 of 22 case scenarios (4 with proximal M2 occlusions and 1 with a small-branch M2 occlusion) and asked about their treatment approach under A) current local resources, and B) assumed ideal conditions (no monetary or infrastructural restraints). Overall treatment decisions were evaluated; subgroup analyses by physician and patient baseline characteristics were performed.

RESULTS: A total of 607 physicians participated. Most of the respondents decided in favor of endovascular therapy in M2 occlusions, both under current local resources and assumed ideal conditions (65.4% versus 69.6%; P = .017). Under current local resources, older patient age ( P &lt; .001), longer time since symptom onset ( P &lt; .001), high center endovascular therapy volume ( P &lt; .001), high personal endovascular therapy volume ( P = .005), and neurosurgeons ( P &lt; .001) were more likely to favor endovascular therapy. European respondents were less likely to favor endovascular therapy ( P = .001). Under assumed ideal conditions, older patient age ( P &lt; .001), longer time since symptom onset ( P &lt; .001), high center endovascular therapy volume ( P = .041), high personal endovascular therapy volume ( P = .002), and Asian respondents were more likely to favor endovascular therapy ( P = .037). Respondents with more experience ( P = .048) and high annual stroke thrombolysis treatment volume ( P = .001) were less likely to favor endovascular therapy.

CONCLUSIONS: Patients with M2 occlusions are considered appropriate candidates for endovascular therapy by most respondents in this survey, especially by those performing endovascular therapy more often and those practicing in high-volume centers.

EVT
:   endovascular therapy
IQR
:   interquartile range" />
<meta name="og-title" property="og:title" content="Endovascular Treatment Decisions in Patients with M2 Segment MCA Occlusions" />
<meta name="og-url" property="og:url" content="http://ajnr-stage2.stage.highwire.org/content/41/2/280" />
<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: Endovascular therapy in acute ischemic stroke is rapidly evolving. We explored physicians’ treatment attitudes and practice in patients with acute ischemic stroke due to M2 occlusion, given the absence of Level-1 guidelines.

MATERIALS AND METHODS: We conducted an international multidisciplinary survey among physicians involved in acute stroke care. Respondents were presented with 10 of 22 case scenarios (4 with proximal M2 occlusions and 1 with a small-branch M2 occlusion) and asked about their treatment approach under A) current local resources, and B) assumed ideal conditions (no monetary or infrastructural restraints). Overall treatment decisions were evaluated; subgroup analyses by physician and patient baseline characteristics were performed.

RESULTS: A total of 607 physicians participated. Most of the respondents decided in favor of endovascular therapy in M2 occlusions, both under current local resources and assumed ideal conditions (65.4% versus 69.6%; P = .017). Under current local resources, older patient age ( P &lt; .001), longer time since symptom onset ( P &lt; .001), high center endovascular therapy volume ( P &lt; .001), high personal endovascular therapy volume ( P = .005), and neurosurgeons ( P &lt; .001) were more likely to favor endovascular therapy. European respondents were less likely to favor endovascular therapy ( P = .001). Under assumed ideal conditions, older patient age ( P &lt; .001), longer time since symptom onset ( P &lt; .001), high center endovascular therapy volume ( P = .041), high personal endovascular therapy volume ( P = .002), and Asian respondents were more likely to favor endovascular therapy ( P = .037). Respondents with more experience ( P = .048) and high annual stroke thrombolysis treatment volume ( P = .001) were less likely to favor endovascular therapy.

CONCLUSIONS: Patients with M2 occlusions are considered appropriate candidates for endovascular therapy by most respondents in this survey, especially by those performing endovascular therapy more often and those practicing in high-volume centers.

EVT
:   endovascular therapy
IQR
:   interquartile range" />
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    <div class="highwire-article-citation highwire-citation-type-highwire-article node73051--5" data-node-nid="73051" id="top-node-73051--62106220703" data-pisa="ajnr;41/2/280" data-pisa-master="ajnr;ajnr.A6397" data-apath="/ajnr/41/2/280.atom" data-hw-author-tooltip-instance="highwire_author_tooltip"><div class="highwire-cite highwire-cite-highwire-article highwire-citation-jcore-article-title-complete clearfix has-author-tooltip highwire-citation-highwire-article-top-a">
  
  
      <div class="highwire-cite-overline"><span  class="highwire-cite-metadata-article-type highwire-cite-metadata">Research Article</span><span class="separator-pipe"></span><span  class="highwire-cite-metadata-art-cat highwire-cite-metadata"><span class="wrapper">Interventional</span></span></div>
  
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      <h1 class="highwire-cite-title" id="page-title">Endovascular Treatment Decisions in Patients with M2 Segment MCA Occlusions</h1>  
    	<div class="highwire-cite-authors"><span  class="highwire-citation-authors"><span class="highwire-citation-author first" data-delta="0">M. Almekhlafi</span>, <span class="highwire-citation-author" data-delta="1">J.M. Ospel</span>, <span class="highwire-citation-author" data-delta="2">G. Saposnik</span>, <span class="highwire-citation-author" data-delta="3">N. Kashani</span>, <span class="highwire-citation-author" data-delta="4">A. Demchuk</span>, <span class="highwire-citation-author" data-delta="5">M.D. Hill</span>, <span class="highwire-citation-author" data-delta="6">M. Goyal</span> and <span class="highwire-citation-author" data-delta="7">B.K. Menon</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">February 2020,  </span><span  class="highwire-cite-metadata-volume highwire-cite-metadata">41 </span><span  class="highwire-cite-metadata-issue highwire-cite-metadata">(2) </span><span  class="highwire-cite-metadata-pages highwire-cite-metadata">280-285; </span><span  class="highwire-cite-metadata-doi highwire-cite-metadata">DOI: https://doi.org/10.3174/ajnr.A6397 </span></div>
  
  
  
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<div id="hw-article-author-popups-top-node-73051--62106220703" style="display: none;"><div class="author-tooltip-0"><div class="author-tooltip-name">M. Almekhlafi </div><div class="author-tooltip-affiliation"><span class="author-tooltip-text"><div class='author-affiliation'><span class='nlm-sup'>a</span>From the Department of Clinical Neurosciences (M.A., J.M.O., A.D., M.D.H., M.G., B.K.M.), Hotchkiss Brain Institute</div><div class='author-affiliation'><span class='nlm-sup'>b</span>and Departments of Radiology (M.A., N.K., A.D., M.D.H., M.G., B.K.M.) and</div><div class='author-affiliation'><span class='nlm-sup'>c</span>Community Health Sciences (M.A., M.D.H., B.K.M.), University of Calgary, Calgary, Alberta, 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.%2BAlmekhlafi%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=Almekhlafi%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.%2BAlmekhlafi%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/0000-0001-9550-8197" target="_blank" class="" data-icon-position="" data-hide-link-title="0">ORCID record for M. Almekhlafi</a></li></ul></div><div class="author-tooltip-1"><div class="author-tooltip-name">J.M. Ospel </div><div class="author-tooltip-affiliation"><span class="author-tooltip-text"><div class='author-affiliation'><span class='nlm-sup'>a</span>From the Department of Clinical Neurosciences (M.A., J.M.O., A.D., M.D.H., M.G., B.K.M.), Hotchkiss Brain Institute</div><div class='author-affiliation'><span class='nlm-sup'>d</span>Department of Radiology (J.M.O.), University Hospital Basel, University Basel, Basel, Switzerland</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.%2BOspel%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=Ospel%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.M.%2BOspel%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/0000-0003-0029-6764" target="_blank" class="" data-icon-position="" data-hide-link-title="0">ORCID record for J.M. Ospel</a></li></ul></div><div class="author-tooltip-2"><div class="author-tooltip-name">G. Saposnik </div><div class="author-tooltip-affiliation"><span class="author-tooltip-text"><div class='author-affiliation'><span class='nlm-sup'>e</span>and Stroke Outcomes and Decision Neuroscience Research Unit (G.S.), Department of Medicine,</div><div class='author-affiliation'><span class='nlm-sup'>f</span>Li Ka Shing Knowledge Institute (G.S.), St. Michael’s Hospital, University of Toronto, Toronto, Ontario, 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=G.%2BSaposnik%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=Saposnik%20G&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%3AG.%2BSaposnik%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/0000-0002-5950-9886" target="_blank" class="" data-icon-position="" data-hide-link-title="0">ORCID record for G. Saposnik</a></li></ul></div><div class="author-tooltip-3"><div class="author-tooltip-name">N. Kashani </div><div class="author-tooltip-affiliation"><span class="author-tooltip-text"><div class='author-affiliation'><span class='nlm-sup'>b</span>and Departments of Radiology (M.A., N.K., A.D., M.D.H., M.G., B.K.M.) and</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.%2BKashani%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=Kashani%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.%2BKashani%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/0000-0002-9752-784X" target="_blank" class="" data-icon-position="" data-hide-link-title="0">ORCID record for N. Kashani</a></li></ul></div><div class="author-tooltip-4"><div class="author-tooltip-name">A. Demchuk </div><div class="author-tooltip-affiliation"><span class="author-tooltip-text"><div class='author-affiliation'><span class='nlm-sup'>a</span>From the Department of Clinical Neurosciences (M.A., J.M.O., A.D., M.D.H., M.G., B.K.M.), Hotchkiss Brain Institute</div><div class='author-affiliation'><span class='nlm-sup'>b</span>and Departments of Radiology (M.A., N.K., A.D., M.D.H., M.G., B.K.M.) and</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.%2BDemchuk%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=Demchuk%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.%2BDemchuk%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/0000-0002-4930-7789" target="_blank" class="" data-icon-position="" data-hide-link-title="0">ORCID record for A. Demchuk</a></li></ul></div><div class="author-tooltip-5"><div class="author-tooltip-name">M.D. Hill </div><div class="author-tooltip-affiliation"><span class="author-tooltip-text"><div class='author-affiliation'><span class='nlm-sup'>a</span>From the Department of Clinical Neurosciences (M.A., J.M.O., A.D., M.D.H., M.G., B.K.M.), Hotchkiss Brain Institute</div><div class='author-affiliation'><span class='nlm-sup'>b</span>and Departments of Radiology (M.A., N.K., A.D., M.D.H., M.G., B.K.M.) and</div><div class='author-affiliation'><span class='nlm-sup'>c</span>Community Health Sciences (M.A., M.D.H., B.K.M.), University of Calgary, Calgary, Alberta, 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.D.%2BHill%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=Hill%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.D.%2BHill%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/0000-0002-6269-1543" target="_blank" class="" data-icon-position="" data-hide-link-title="0">ORCID record for M.D. Hill</a></li></ul></div><div class="author-tooltip-6"><div class="author-tooltip-name">M. Goyal </div><div class="author-tooltip-affiliation"><span class="author-tooltip-text"><div class='author-affiliation'><span class='nlm-sup'>a</span>From the Department of Clinical Neurosciences (M.A., J.M.O., A.D., M.D.H., M.G., B.K.M.), Hotchkiss Brain Institute</div><div class='author-affiliation'><span class='nlm-sup'>b</span>and Departments of Radiology (M.A., N.K., A.D., M.D.H., M.G., B.K.M.) and</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.%2BGoyal%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=Goyal%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.%2BGoyal%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/0000-0001-9060-2109" target="_blank" class="" data-icon-position="" data-hide-link-title="0">ORCID record for M. Goyal</a></li></ul></div><div class="author-tooltip-7"><div class="author-tooltip-name">B.K. Menon </div><div class="author-tooltip-affiliation"><span class="author-tooltip-text"><div class='author-affiliation'><span class='nlm-sup'>a</span>From the Department of Clinical Neurosciences (M.A., J.M.O., A.D., M.D.H., M.G., B.K.M.), Hotchkiss Brain Institute</div><div class='author-affiliation'><span class='nlm-sup'>b</span>and Departments of Radiology (M.A., N.K., A.D., M.D.H., M.G., B.K.M.) and</div><div class='author-affiliation'><span class='nlm-sup'>c</span>Community Health Sciences (M.A., M.D.H., B.K.M.), University of Calgary, Calgary, Alberta, 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.K.%2BMenon%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=Menon%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.K.%2BMenon%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/0000-0002-3466-496X" target="_blank" class="" data-icon-position="" data-hide-link-title="0">ORCID record for B.K. 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        	<div class="highwire-cite-metadata"><span  class="highwire-cite-metadata-volume highwire-cite-metadata">Vol. 41</span>, <span  class="highwire-cite-metadata-issue highwire-cite-metadata">Issue 2 </span><div  class="highwire-cite-metadata-pubdate highwire-cite-metadata">1 Feb 2020 </div></div>
      
      
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    	<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">Feb 2020, </span><span  class="highwire-cite-metadata-volume highwire-cite-metadata">41 </span><span  class="highwire-cite-metadata-issue highwire-cite-metadata">(2) </span><span  class="highwire-cite-metadata-pages highwire-cite-metadata">280-285; </span><span  class="highwire-cite-metadata-doi highwire-cite-metadata"><span class="label">DOI:</span> 10.3174/ajnr.A6397 </span></div>
  
  
  
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    	<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">Feb 2020, </span><span  class="highwire-cite-metadata-volume highwire-cite-metadata">41 </span><span  class="highwire-cite-metadata-issue highwire-cite-metadata">(2) </span><span  class="highwire-cite-metadata-pages highwire-cite-metadata">280-285; </span><span  class="highwire-cite-metadata-doi highwire-cite-metadata"><span class="label">DOI:</span> 10.3174/ajnr.A6397 </span></div>
  
  
  
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