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<meta name="HW.identifier" content="/ajnr/41/5/828.atom" />
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<meta name="DC.Title" content="Predictors of Cerebral Aneurysm Rupture after Coil Embolization: Single-Center Experience with Recanalized Aneurysms" />
<meta name="DC.Identifier" content="10.3174/ajnr.A6558" />
<meta name="DC.Date" content="2020-05-01" />
<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: Recanalization after coil embolization is widely studied. However, there are limited data on how recanalized aneurysms rupture. Herein, we describe our experience with the rupture of recanalized aneurysms and discuss the type of recanalized aneurysms at greatest rupture risk.

MATERIALS AND METHODS: A total of 426 unruptured aneurysms and 169 ruptured aneurysms underwent coil embolization in our institution between January 2009 and December 2017. Recanalization occurred in 38 (8.9%) of 426 unruptured aneurysms (unruptured group) and 37 (21.9%) of 169 ruptured aneurysms (ruptured group). The Modified Raymond-Roy classification on DSA was used to categorize the recanalization type. Follow-up DSA was scheduled until 6 months after treatment, and follow-up MRA was scheduled yearly. If recanalization was suspected on MRA, DSA was performed.

RESULTS: In the unruptured group, the median follow-up term was 74.0 months. Retreatment for recanalization was performed in 18 aneurysms. Four of 20 untreated recanalized aneurysms (0.94% of total coiled aneurysms) ruptured. In untreated recanalized aneurysms, class IIIb aneurysms ruptured significantly more frequently than class II and IIIa ( P  = .025). In the ruptured group, the median follow-up term was 28.0 months. Retreatment for recanalization was performed in 16 aneurysms. Four of 21 untreated recanalized aneurysms (2.37% of total coiled aneurysms) ruptured. Class IIIb aneurysms ruptured significantly more frequently than class II and IIIa ( P  = .02).

CONCLUSIONS: The types of recanalization after coil embolization may be predictors of rupture. Coiled aneurysms with class IIIb recanalization should undergo early retreatment because of an increased rupture risk.

AcomA
:   anterior communicating artery
PcomA
:   posterior communicating artery" />
<meta name="DC.Contributor" content="Y. Funakoshi" />
<meta name="DC.Contributor" content="H. Imamura" />
<meta name="DC.Contributor" content="S. Tani" />
<meta name="DC.Contributor" content="H. Adachi" />
<meta name="DC.Contributor" content="R. Fukumitsu" />
<meta name="DC.Contributor" content="T. Sunohara" />
<meta name="DC.Contributor" content="Y. Omura" />
<meta name="DC.Contributor" content="Y. Matsui" />
<meta name="DC.Contributor" content="N. Sasaki" />
<meta name="DC.Contributor" content="T. Fukuda" />
<meta name="DC.Contributor" content="R. Akiyama" />
<meta name="DC.Contributor" content="K. Horiuchi" />
<meta name="DC.Contributor" content="S. Kajiura" />
<meta name="DC.Contributor" content="M. Shigeyasu" />
<meta name="DC.Contributor" content="K. Iihara" />
<meta name="DC.Contributor" content="N. Sakai" />
<meta name="article:published_time" content="2020-05-01" />
<meta name="article:section" content="Interventional" />
<meta name="citation_title" content="Predictors of Cerebral Aneurysm Rupture after Coil Embolization: Single-Center Experience with Recanalized Aneurysms" />
<meta name="citation_abstract" lang="en" content="&lt;h3&gt;BACKGROUND AND PURPOSE:&lt;/h3&gt;
&lt;p&gt;Recanalization after coil embolization is widely studied. However, there are limited data on how recanalized aneurysms rupture. Herein, we describe our experience with the rupture of recanalized aneurysms and discuss the type of recanalized aneurysms at greatest rupture risk.&lt;/p&gt;&lt;h3&gt;MATERIALS AND METHODS:&lt;/h3&gt;
&lt;p&gt;A total of 426 unruptured aneurysms and 169 ruptured aneurysms underwent coil embolization in our institution between January 2009 and December 2017. Recanalization occurred in 38 (8.9%) of 426 unruptured aneurysms (unruptured group) and 37 (21.9%) of 169 ruptured aneurysms (ruptured group). The Modified Raymond-Roy classification on DSA was used to categorize the recanalization type. Follow-up DSA was scheduled until 6 months after treatment, and follow-up MRA was scheduled yearly. If recanalization was suspected on MRA, DSA was performed.&lt;/p&gt;&lt;h3&gt;RESULTS:&lt;/h3&gt;
&lt;p&gt;In the unruptured group, the median follow-up term was 74.0 months. Retreatment for recanalization was performed in 18 aneurysms. Four of 20 untreated recanalized aneurysms (0.94% of total coiled aneurysms) ruptured. In untreated recanalized aneurysms, class IIIb aneurysms ruptured significantly more frequently than class II and IIIa (&lt;i&gt;P &lt;/i&gt;= .025). In the ruptured group, the median follow-up term was 28.0 months. Retreatment for recanalization was performed in 16 aneurysms. Four of 21 untreated recanalized aneurysms (2.37% of total coiled aneurysms) ruptured. Class IIIb aneurysms ruptured significantly more frequently than class II and IIIa (&lt;i&gt;P &lt;/i&gt;= .02).&lt;/p&gt;&lt;h3&gt;CONCLUSIONS:&lt;/h3&gt;
&lt;p&gt;The types of recanalization after coil embolization may be predictors of rupture. Coiled aneurysms with class IIIb recanalization should undergo early retreatment because of an increased rupture risk.&lt;/p&gt;" />
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<meta name="twitter:title" content="Predictors of Cerebral Aneurysm Rupture after Coil Embolization: Single-Center Experience with Recanalized Aneurysms" />
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<meta name="twitter:description" content="BACKGROUND AND PURPOSE: Recanalization after coil embolization is widely studied. However, there are limited data on how recanalized aneurysms rupture. Herein, we describe our experience with the rupture of recanalized aneurysms and discuss the type of recanalized aneurysms at greatest rupture risk.

MATERIALS AND METHODS: A total of 426 unruptured aneurysms and 169 ruptured aneurysms underwent coil embolization in our institution between January 2009 and December 2017. Recanalization occurred in 38 (8.9%) of 426 unruptured aneurysms (unruptured group) and 37 (21.9%) of 169 ruptured aneurysms (ruptured group). The Modified Raymond-Roy classification on DSA was used to categorize the recanalization type. Follow-up DSA was scheduled until 6 months after treatment, and follow-up MRA was scheduled yearly. If recanalization was suspected on MRA, DSA was performed.

RESULTS: In the unruptured group, the median follow-up term was 74.0 months. Retreatment for recanalization was performed in 18 aneurysms. Four of 20 untreated recanalized aneurysms (0.94% of total coiled aneurysms) ruptured. In untreated recanalized aneurysms, class IIIb aneurysms ruptured significantly more frequently than class II and IIIa ( P  = .025). In the ruptured group, the median follow-up term was 28.0 months. Retreatment for recanalization was performed in 16 aneurysms. Four of 21 untreated recanalized aneurysms (2.37% of total coiled aneurysms) ruptured. Class IIIb aneurysms ruptured significantly more frequently than class II and IIIa ( P  = .02).

CONCLUSIONS: The types of recanalization after coil embolization may be predictors of rupture. Coiled aneurysms with class IIIb recanalization should undergo early retreatment because of an increased rupture risk.

AcomA
:   anterior communicating artery
PcomA
:   posterior communicating artery" />
<meta name="og-title" property="og:title" content="Predictors of Cerebral Aneurysm Rupture after Coil Embolization: Single-Center Experience with Recanalized Aneurysms" />
<meta name="og-url" property="og:url" content="http://ajnr-stage2.stage.highwire.org/content/41/5/828" />
<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: Recanalization after coil embolization is widely studied. However, there are limited data on how recanalized aneurysms rupture. Herein, we describe our experience with the rupture of recanalized aneurysms and discuss the type of recanalized aneurysms at greatest rupture risk.

MATERIALS AND METHODS: A total of 426 unruptured aneurysms and 169 ruptured aneurysms underwent coil embolization in our institution between January 2009 and December 2017. Recanalization occurred in 38 (8.9%) of 426 unruptured aneurysms (unruptured group) and 37 (21.9%) of 169 ruptured aneurysms (ruptured group). The Modified Raymond-Roy classification on DSA was used to categorize the recanalization type. Follow-up DSA was scheduled until 6 months after treatment, and follow-up MRA was scheduled yearly. If recanalization was suspected on MRA, DSA was performed.

RESULTS: In the unruptured group, the median follow-up term was 74.0 months. Retreatment for recanalization was performed in 18 aneurysms. Four of 20 untreated recanalized aneurysms (0.94% of total coiled aneurysms) ruptured. In untreated recanalized aneurysms, class IIIb aneurysms ruptured significantly more frequently than class II and IIIa ( P  = .025). In the ruptured group, the median follow-up term was 28.0 months. Retreatment for recanalization was performed in 16 aneurysms. Four of 21 untreated recanalized aneurysms (2.37% of total coiled aneurysms) ruptured. Class IIIb aneurysms ruptured significantly more frequently than class II and IIIa ( P  = .02).

CONCLUSIONS: The types of recanalization after coil embolization may be predictors of rupture. Coiled aneurysms with class IIIb recanalization should undergo early retreatment because of an increased rupture risk.

AcomA
:   anterior communicating artery
PcomA
:   posterior communicating artery" />
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    <div class="highwire-article-citation highwire-citation-type-highwire-article node75134--5" data-node-nid="75134" id="top-node-75134--61754546834" data-pisa="ajnr;41/5/828" data-pisa-master="ajnr;ajnr.A6558" data-apath="/ajnr/41/5/828.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>
  
      <div class="highwire-cite-access"><span class="highwire-citation-access highwire-citation-access-check" data-pisa-id="ajnr;ajnr.A6558" data-atom-uri="/ajnr/41/5/828.atom" data-request-view="full"></span></div>
  
      <h1 class="highwire-cite-title" id="page-title">Predictors of Cerebral Aneurysm Rupture after Coil Embolization: Single-Center Experience with Recanalized Aneurysms</h1>  
    	<div class="highwire-cite-authors"><span  class="highwire-citation-authors"><span class="highwire-citation-author first" data-delta="0">Y. Funakoshi</span>, <span class="highwire-citation-author" data-delta="1">H. Imamura</span>, <span class="highwire-citation-author" data-delta="2">S. Tani</span>, <span class="highwire-citation-author" data-delta="3">H. Adachi</span>, <span class="highwire-citation-author" data-delta="4">R. Fukumitsu</span>, <span class="highwire-citation-author" data-delta="5">T. Sunohara</span>, <span class="highwire-citation-author" data-delta="6">Y. Omura</span>, <span class="highwire-citation-author" data-delta="7">Y. Matsui</span>, <span class="highwire-citation-author" data-delta="8">N. Sasaki</span>, <span class="highwire-citation-author" data-delta="9">T. Fukuda</span>, <span class="highwire-citation-author" data-delta="10">R. Akiyama</span>, <span class="highwire-citation-author" data-delta="11">K. Horiuchi</span>, <span class="highwire-citation-author" data-delta="12">S. Kajiura</span>, <span class="highwire-citation-author" data-delta="13">M. Shigeyasu</span>, <span class="highwire-citation-author" data-delta="14">K. Iihara</span> and <span class="highwire-citation-author" data-delta="15">N. Sakai</span></span></div>
  
    	<div class="highwire-cite-metadata"><span  class="highwire-cite-metadata-journal highwire-cite-metadata">American Journal of Neuroradiology </span><span  class="highwire-cite-metadata-date highwire-cite-metadata">May 2020,  </span><span  class="highwire-cite-metadata-volume highwire-cite-metadata">41 </span><span  class="highwire-cite-metadata-issue highwire-cite-metadata">(5) </span><span  class="highwire-cite-metadata-pages highwire-cite-metadata">828-835; </span><span  class="highwire-cite-metadata-doi highwire-cite-metadata">DOI: https://doi.org/10.3174/ajnr.A6558 </span></div>
  
  
  
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<div id="hw-article-author-popups-top-node-75134--61754546834" style="display: none;"><div class="author-tooltip-0"><div class="author-tooltip-name">Y. Funakoshi </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 Neurosurgery (Y.F., H.I., S.T., H.A., R.F., T.S., Y.O., Y.M., N.Sasaki, T.F., R.A., K.H., S.K., M.S., N.Sakai), Kobe City Medical Center General Hospital, Kobe, Japan</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=Y.%2BFunakoshi%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=Funakoshi%20Y&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%3AY.%2BFunakoshi%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/0000-0002-3039-2370" target="_blank" class="" data-icon-position="" data-hide-link-title="0">ORCID record for Y. Funakoshi</a></li></ul></div><div class="author-tooltip-1"><div class="author-tooltip-name">H. Imamura </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 Neurosurgery (Y.F., H.I., S.T., H.A., R.F., T.S., Y.O., Y.M., N.Sasaki, T.F., R.A., K.H., S.K., M.S., N.Sakai), Kobe City Medical Center General Hospital, Kobe, Japan</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.%2BImamura%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=Imamura%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.%2BImamura%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/0000-0001-8923-7861" target="_blank" class="" data-icon-position="" data-hide-link-title="0">ORCID record for H. Imamura</a></li></ul></div><div class="author-tooltip-2"><div class="author-tooltip-name">S. Tani </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 Neurosurgery (Y.F., H.I., S.T., H.A., R.F., T.S., Y.O., Y.M., N.Sasaki, T.F., R.A., K.H., S.K., M.S., N.Sakai), Kobe City Medical Center General Hospital, Kobe, Japan</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=S.%2BTani%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=Tani%20S&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%3AS.%2BTani%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/0000-0003-0051-2092" target="_blank" class="" data-icon-position="" data-hide-link-title="0">ORCID record for S. Tani</a></li></ul></div><div class="author-tooltip-3"><div class="author-tooltip-name">H. Adachi </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 Neurosurgery (Y.F., H.I., S.T., H.A., R.F., T.S., Y.O., Y.M., N.Sasaki, T.F., R.A., K.H., S.K., M.S., N.Sakai), Kobe City Medical Center General Hospital, Kobe, Japan</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.%2BAdachi%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=Adachi%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.%2BAdachi%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/0000-0002-8144-6906" target="_blank" class="" data-icon-position="" data-hide-link-title="0">ORCID record for H. Adachi</a></li></ul></div><div class="author-tooltip-4"><div class="author-tooltip-name">R. Fukumitsu </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 Neurosurgery (Y.F., H.I., S.T., H.A., R.F., T.S., Y.O., Y.M., N.Sasaki, T.F., R.A., K.H., S.K., M.S., N.Sakai), Kobe City Medical Center General Hospital, Kobe, Japan</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.%2BFukumitsu%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=Fukumitsu%20R&amp;link_type=AUTHORSEARCH" target="_blank" class="" data-icon-position="" data-hide-link-title="0">Find this author on PubMed</a></li><li class="author-site-search-link"><a href="/search/author1%3AR.%2BFukumitsu%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/0000-0003-4474-6579" target="_blank" class="" data-icon-position="" data-hide-link-title="0">ORCID record for R. Fukumitsu</a></li></ul></div><div class="author-tooltip-5"><div class="author-tooltip-name">T. Sunohara </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 Neurosurgery (Y.F., H.I., S.T., H.A., R.F., T.S., Y.O., Y.M., N.Sasaki, T.F., R.A., K.H., S.K., M.S., N.Sakai), Kobe City Medical Center General Hospital, Kobe, Japan</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.%2BSunohara%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=Sunohara%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.%2BSunohara%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/0000-0002-0508-5571" target="_blank" class="" data-icon-position="" data-hide-link-title="0">ORCID record for T. Sunohara</a></li></ul></div><div class="author-tooltip-6"><div class="author-tooltip-name">Y. Omura </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 Neurosurgery (Y.F., H.I., S.T., H.A., R.F., T.S., Y.O., Y.M., N.Sasaki, T.F., R.A., K.H., S.K., M.S., N.Sakai), Kobe City Medical Center General Hospital, Kobe, Japan</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=Y.%2BOmura%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=Omura%20Y&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%3AY.%2BOmura%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/0000-0002-6935-5366" target="_blank" class="" data-icon-position="" data-hide-link-title="0">ORCID record for Y. Omura</a></li></ul></div><div class="author-tooltip-7"><div class="author-tooltip-name">Y. Matsui </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 Neurosurgery (Y.F., H.I., S.T., H.A., R.F., T.S., Y.O., Y.M., N.Sasaki, T.F., R.A., K.H., S.K., M.S., N.Sakai), Kobe City Medical Center General Hospital, Kobe, Japan</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=Y.%2BMatsui%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=Matsui%20Y&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%3AY.%2BMatsui%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/0000-0002-0676-8331" target="_blank" class="" data-icon-position="" data-hide-link-title="0">ORCID record for Y. Matsui</a></li></ul></div><div class="author-tooltip-8"><div class="author-tooltip-name">N. Sasaki </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 Neurosurgery (Y.F., H.I., S.T., H.A., R.F., T.S., Y.O., Y.M., N.Sasaki, T.F., R.A., K.H., S.K., M.S., N.Sakai), Kobe City Medical Center General Hospital, Kobe, Japan</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.%2BSasaki%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=Sasaki%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.%2BSasaki%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/0000-0001-8206-3352" target="_blank" class="" data-icon-position="" data-hide-link-title="0">ORCID record for N. Sasaki</a></li></ul></div><div class="author-tooltip-9"><div class="author-tooltip-name">T. Fukuda </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 Neurosurgery (Y.F., H.I., S.T., H.A., R.F., T.S., Y.O., Y.M., N.Sasaki, T.F., R.A., K.H., S.K., M.S., N.Sakai), Kobe City Medical Center General Hospital, Kobe, Japan</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.%2BFukuda%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=Fukuda%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.%2BFukuda%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/0000-0002-3030-1424" target="_blank" class="" data-icon-position="" data-hide-link-title="0">ORCID record for T. Fukuda</a></li></ul></div><div class="author-tooltip-10"><div class="author-tooltip-name">R. Akiyama </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 Neurosurgery (Y.F., H.I., S.T., H.A., R.F., T.S., Y.O., Y.M., N.Sasaki, T.F., R.A., K.H., S.K., M.S., N.Sakai), Kobe City Medical Center General Hospital, Kobe, Japan</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.%2BAkiyama%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=Akiyama%20R&amp;link_type=AUTHORSEARCH" target="_blank" class="" data-icon-position="" data-hide-link-title="0">Find this author on PubMed</a></li><li class="author-site-search-link"><a href="/search/author1%3AR.%2BAkiyama%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/0000-0002-8700-3209" target="_blank" class="" data-icon-position="" data-hide-link-title="0">ORCID record for R. Akiyama</a></li></ul></div><div class="author-tooltip-11"><div class="author-tooltip-name">K. Horiuchi </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 Neurosurgery (Y.F., H.I., S.T., H.A., R.F., T.S., Y.O., Y.M., N.Sasaki, T.F., R.A., K.H., S.K., M.S., N.Sakai), Kobe City Medical Center General Hospital, Kobe, Japan</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.%2BHoriuchi%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=Horiuchi%20K&amp;link_type=AUTHORSEARCH" target="_blank" class="" data-icon-position="" data-hide-link-title="0">Find this author on PubMed</a></li><li class="author-site-search-link"><a href="/search/author1%3AK.%2BHoriuchi%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/0000-0003-2421-3142" target="_blank" class="" data-icon-position="" data-hide-link-title="0">ORCID record for K. Horiuchi</a></li></ul></div><div class="author-tooltip-12"><div class="author-tooltip-name">S. Kajiura </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 Neurosurgery (Y.F., H.I., S.T., H.A., R.F., T.S., Y.O., Y.M., N.Sasaki, T.F., R.A., K.H., S.K., M.S., N.Sakai), Kobe City Medical Center General Hospital, Kobe, Japan</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=S.%2BKajiura%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=Kajiura%20S&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%3AS.%2BKajiura%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/0000-0003-2086-6461" target="_blank" class="" data-icon-position="" data-hide-link-title="0">ORCID record for S. Kajiura</a></li></ul></div><div class="author-tooltip-13"><div class="author-tooltip-name">M. Shigeyasu </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 Neurosurgery (Y.F., H.I., S.T., H.A., R.F., T.S., Y.O., Y.M., N.Sasaki, T.F., R.A., K.H., S.K., M.S., N.Sakai), Kobe City Medical Center General Hospital, Kobe, Japan</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.%2BShigeyasu%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=Shigeyasu%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.%2BShigeyasu%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/0000-0001-9748-4512" target="_blank" class="" data-icon-position="" data-hide-link-title="0">ORCID record for M. Shigeyasu</a></li></ul></div><div class="author-tooltip-14"><div class="author-tooltip-name">K. Iihara </div><div class="author-tooltip-affiliation"><span class="author-tooltip-text"><div class='author-affiliation'><span class='nlm-sup'>b</span>Department of Neurosurgery (K.I.), Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan.</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.%2BIihara%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=Iihara%20K&amp;link_type=AUTHORSEARCH" target="_blank" class="" data-icon-position="" data-hide-link-title="0">Find this author on PubMed</a></li><li class="author-site-search-link"><a href="/search/author1%3AK.%2BIihara%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/0000-0002-7852-220X" target="_blank" class="" data-icon-position="" data-hide-link-title="0">ORCID record for K. Iihara</a></li></ul></div><div class="author-tooltip-15"><div class="author-tooltip-name">N. Sakai </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 Neurosurgery (Y.F., H.I., S.T., H.A., R.F., T.S., Y.O., Y.M., N.Sasaki, T.F., R.A., K.H., S.K., M.S., N.Sakai), Kobe City Medical Center General Hospital, Kobe, Japan</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.%2BSakai%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=Sakai%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.%2BSakai%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/0000-0002-3289-1210" target="_blank" class="" data-icon-position="" data-hide-link-title="0">ORCID record for N. Sakai</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 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-41.5.828.1" data-doi="10.1016/S0140-6736(02)11314-6"><div class="cit-metadata"><ol class="cit-auth-list"><li><span class="cit-auth"><span class="cit-name-surname">Molyneux</span>  <span class="cit-name-given-names">A</span></span>, </li><li><span class="cit-auth"><span class="cit-name-surname">Kerr</span>  <span class="cit-name-given-names">R</span></span>, </li><li><span class="cit-auth"><span class="cit-name-surname">Stratton</span>  <span class="cit-name-given-names">I</span></span>, <span class="cit-etal">et al</span></li></ol><cite>; <span class="cit-auth cit-collab">International 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class="cit-name-surname">Zhang</span>  <span class="cit-name-given-names">Q</span></span>, </li><li><span class="cit-auth"><span class="cit-name-surname">Jing</span>  <span class="cit-name-given-names">L</span></span>, </li><li><span class="cit-auth"><span class="cit-name-surname">Liu</span>  <span class="cit-name-given-names">J</span></span>, <span class="cit-etal">et al</span></li></ol><cite>. <span class="cit-article-title">Predisposing factors for recanalization of cerebral aneurysms after endovascular embolization: a multivariate study</span>. <abbr class="cit-jnl-abbrev">J Neurointerv Surg</abbr> <span class="cit-pub-date">2018</span>;<span class="cit-vol">10</span>:<span class="cit-fpage">252</span>–<span class="cit-lpage">57</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>10.1136/neurintsurg-2017-013041</span><span class="cit-pub-id-sep cit-pub-id-pmid-sep"> </span><span 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class="cit-auth-list"><li><span class="cit-auth"><span class="cit-name-surname">Jeon</span>  <span class="cit-name-given-names">JP</span></span>, </li><li><span class="cit-auth"><span class="cit-name-surname">Cho</span>  <span class="cit-name-given-names">YD</span></span>, </li><li><span class="cit-auth"><span class="cit-name-surname">Rhim</span>  <span class="cit-name-given-names">JK</span></span>, <span class="cit-etal">et al</span></li></ol><cite>. <span class="cit-article-title">Extended monitoring of coiled aneurysms completely occluded at 6-month follow-up: late recanalization rate and related risk factors</span>. <abbr class="cit-jnl-abbrev">Eur Radiol</abbr> <span class="cit-pub-date">2016</span>;<span class="cit-vol">26</span>:<span class="cit-fpage">3319</span>–<span class="cit-lpage">26</span><span class="cit-pub-id-sep cit-pub-id-doi-sep"> </span><span class="cit-pub-id cit-pub-id-doi"><span class="cit-pub-id-scheme-doi">doi:</span>10.1007/s00330-015-4176-3</span><span 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</li><li><span class="cit-auth"><span class="cit-name-surname">Moyle</span>  <span class="cit-name-given-names">H</span></span>, </li><li><span class="cit-auth"><span class="cit-name-surname">Oermann</span>  <span class="cit-name-given-names">EK</span></span>, <span class="cit-etal">et al</span></li></ol><cite>. <span class="cit-article-title">An update to the Raymond-Roy occlusion classification of intracranial aneurysms treated with coil embolization</span>. <abbr class="cit-jnl-abbrev">J Neurointervent Surg</abbr> <span class="cit-pub-date">2015</span>;<span class="cit-vol">7</span>:<span class="cit-fpage">496</span>–<span class="cit-lpage">502</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>10.1136/neurintsurg-2014-011258</span><span class="cit-pub-id-sep cit-pub-id-pmid-sep"> </span><span class="cit-pub-id cit-pub-id-pmid"><span 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          <a href="/content/41/5" class="highwire-cite-linked-title" data-icon-position="" data-hide-link-title="0"><span class="highwire-cite-title">American Journal of Neuroradiology</span></a>      
      
        	<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 5 </span><div  class="highwire-cite-metadata-pubdate highwire-cite-metadata">1 May 2020 </div></div>
      
      
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      <div class="highwire-cite-title">Predictors of Cerebral Aneurysm Rupture after Coil Embolization: Single-Center Experience with Recanalized Aneurysms</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">Y.</span> <span class="nlm-surname">Funakoshi</span></span>, <span class="highwire-citation-author" data-delta="1"><span class="nlm-given-names">H.</span> <span class="nlm-surname">Imamura</span></span>, <span class="highwire-citation-author" data-delta="2"><span class="nlm-given-names">S.</span> <span class="nlm-surname">Tani</span></span>, <span class="highwire-citation-author" data-delta="3"><span class="nlm-given-names">H.</span> <span class="nlm-surname">Adachi</span></span>, <span class="highwire-citation-author" data-delta="4"><span class="nlm-given-names">R.</span> <span class="nlm-surname">Fukumitsu</span></span>, <span class="highwire-citation-author" data-delta="5"><span class="nlm-given-names">T.</span> <span class="nlm-surname">Sunohara</span></span>, <span class="highwire-citation-author" data-delta="6"><span class="nlm-given-names">Y.</span> <span class="nlm-surname">Omura</span></span>, <span class="highwire-citation-author" data-delta="7"><span class="nlm-given-names">Y.</span> <span class="nlm-surname">Matsui</span></span>, <span class="highwire-citation-author" data-delta="8"><span class="nlm-given-names">N.</span> <span class="nlm-surname">Sasaki</span></span>, <span class="highwire-citation-author" data-delta="9"><span class="nlm-given-names">T.</span> <span class="nlm-surname">Fukuda</span></span>, <span class="highwire-citation-author" data-delta="10"><span class="nlm-given-names">R.</span> <span class="nlm-surname">Akiyama</span></span>, <span class="highwire-citation-author" data-delta="11"><span class="nlm-given-names">K.</span> <span class="nlm-surname">Horiuchi</span></span>, <span class="highwire-citation-author" data-delta="12"><span class="nlm-given-names">S.</span> <span class="nlm-surname">Kajiura</span></span>, <span class="highwire-citation-author" data-delta="13"><span class="nlm-given-names">M.</span> <span class="nlm-surname">Shigeyasu</span></span>, <span class="highwire-citation-author" data-delta="14"><span class="nlm-given-names">K.</span> <span class="nlm-surname">Iihara</span></span>, <span class="highwire-citation-author" data-delta="15"><span class="nlm-given-names">N.</span> <span class="nlm-surname">Sakai</span></span></span></div>
  
    	<div class="highwire-cite-metadata"><span  class="highwire-cite-metadata-journal highwire-cite-metadata">American Journal of Neuroradiology </span><span  class="highwire-cite-metadata-date highwire-cite-metadata">May 2020, </span><span  class="highwire-cite-metadata-volume highwire-cite-metadata">41 </span><span  class="highwire-cite-metadata-issue highwire-cite-metadata">(5) </span><span  class="highwire-cite-metadata-pages highwire-cite-metadata">828-835; </span><span  class="highwire-cite-metadata-doi highwire-cite-metadata"><span class="label">DOI:</span> 10.3174/ajnr.A6558 </span></div>
  
  
  
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      <div class="highwire-cite-title">Predictors of Cerebral Aneurysm Rupture after Coil Embolization: Single-Center Experience with Recanalized Aneurysms</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">Y.</span> <span class="nlm-surname">Funakoshi</span></span>, <span class="highwire-citation-author" data-delta="1"><span class="nlm-given-names">H.</span> <span class="nlm-surname">Imamura</span></span>, <span class="highwire-citation-author" data-delta="2"><span class="nlm-given-names">S.</span> <span class="nlm-surname">Tani</span></span>, <span class="highwire-citation-author" data-delta="3"><span class="nlm-given-names">H.</span> <span class="nlm-surname">Adachi</span></span>, <span class="highwire-citation-author" data-delta="4"><span class="nlm-given-names">R.</span> <span class="nlm-surname">Fukumitsu</span></span>, <span class="highwire-citation-author" data-delta="5"><span class="nlm-given-names">T.</span> <span class="nlm-surname">Sunohara</span></span>, <span class="highwire-citation-author" data-delta="6"><span class="nlm-given-names">Y.</span> <span class="nlm-surname">Omura</span></span>, <span class="highwire-citation-author" data-delta="7"><span class="nlm-given-names">Y.</span> <span class="nlm-surname">Matsui</span></span>, <span class="highwire-citation-author" data-delta="8"><span class="nlm-given-names">N.</span> <span class="nlm-surname">Sasaki</span></span>, <span class="highwire-citation-author" data-delta="9"><span class="nlm-given-names">T.</span> <span class="nlm-surname">Fukuda</span></span>, <span class="highwire-citation-author" data-delta="10"><span class="nlm-given-names">R.</span> <span class="nlm-surname">Akiyama</span></span>, <span class="highwire-citation-author" data-delta="11"><span class="nlm-given-names">K.</span> <span class="nlm-surname">Horiuchi</span></span>, <span class="highwire-citation-author" data-delta="12"><span class="nlm-given-names">S.</span> <span class="nlm-surname">Kajiura</span></span>, <span class="highwire-citation-author" data-delta="13"><span class="nlm-given-names">M.</span> <span class="nlm-surname">Shigeyasu</span></span>, <span class="highwire-citation-author" data-delta="14"><span class="nlm-given-names">K.</span> <span class="nlm-surname">Iihara</span></span>, <span class="highwire-citation-author" data-delta="15"><span class="nlm-given-names">N.</span> <span class="nlm-surname">Sakai</span></span></span></div>
  
    	<div class="highwire-cite-metadata"><span  class="highwire-cite-metadata-journal highwire-cite-metadata">American Journal of Neuroradiology </span><span  class="highwire-cite-metadata-date highwire-cite-metadata">May 2020, </span><span  class="highwire-cite-metadata-volume highwire-cite-metadata">41 </span><span  class="highwire-cite-metadata-issue highwire-cite-metadata">(5) </span><span  class="highwire-cite-metadata-pages highwire-cite-metadata">828-835; </span><span  class="highwire-cite-metadata-doi highwire-cite-metadata"><span class="label">DOI:</span> 10.3174/ajnr.A6558 </span></div>
  
  
  
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