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<meta name="DC.Title" content="Influence of Perianeurysmal Environment on the Deformation and Bleb Formation of the Unruptured Cerebral Aneurysm: Assessment with Fusion Imaging of 3D MR Cisternography and 3D MR Angiography" />
<meta name="DC.Date" content="2005-09-01" />
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<meta name="DC.Description" content="BACKGROUND AND PURPOSE: Surface irregularity and bleb formation are anatomical factors that are associated with aneurysm rupture. The perianeurysmal environment has been proposed as one factor that may influence aneurysm morphology. We have developed a fusion imaging technique of 3D MR cisternography and angiography that allows clear visualization of an aneurysm and its environment. This technique may prove useful in further understanding of the natural history of intracranial aneurysms.

METHODS: Fusion images of 3D MR cisternography and angiography were reconstructed by a perspective volume-rendering algorithm from the volume datasets of MR cisternography, obtained by a T2-weighted 3D fast spin-echo sequence, and coordinated MR angiography, by a 3D time-of-flight sequence. On the fusion images, the anatomic relationship of an aneurysm to the perianeurysmal structures was assessed, and the influence of perianeurysmal environment on the deformation and bleb formation of the aneurysm was investigated.

RESULTS: Marked and minor deformation and bleb formation of the aneurysmal dome were found at the areas confronted or adjacent to a certain contact with perianeurysmal structures, including cranial nerves, brain parenchyma, cranial base bones, petroclinoidal dural folds, and dura mater.

CONCLUSION: Fusion images of 3D MR cisternography and angiography can depict the contact of an aneurysm with its perianeurysmal environment; this may provide an additional parameter in consideration for the natural history of cerebral aneurysms." />
<meta name="DC.Contributor" content="Toru Satoh" />
<meta name="DC.Contributor" content="Megumi Omi" />
<meta name="DC.Contributor" content="Chika Ohsako" />
<meta name="DC.Contributor" content="Atsushi Katsumata" />
<meta name="DC.Contributor" content="Yusuke Yoshimoto" />
<meta name="DC.Contributor" content="Shoji Tsuchimoto" />
<meta name="DC.Contributor" content="Keisuke Onoda" />
<meta name="DC.Contributor" content="Koji Tokunaga" />
<meta name="DC.Contributor" content="Kenji Sugiu" />
<meta name="DC.Contributor" content="Isao Date" />
<meta name="article:published_time" content="2005-09-01" />
<meta name="article:section" content="BRAIN" />
<meta name="citation_title" content="Influence of Perianeurysmal Environment on the Deformation and Bleb Formation of the Unruptured Cerebral Aneurysm: Assessment with Fusion Imaging of 3D MR Cisternography and 3D MR Angiography" />
<meta name="citation_abstract" lang="en" content="&lt;p&gt;&lt;i&gt;BACKGROUND AND PURPOSE:&lt;/i&gt; Surface irregularity and bleb formation are anatomical factors that are associated with aneurysm rupture. The perianeurysmal environment has been proposed as one factor that may influence aneurysm morphology. We have developed a fusion imaging technique of 3D MR cisternography and angiography that allows clear visualization of an aneurysm and its environment. This technique may prove useful in further understanding of the natural history of intracranial aneurysms.&lt;/p&gt;&lt;p&gt;&lt;i&gt;METHODS:&lt;/i&gt; Fusion images of 3D MR cisternography and angiography were reconstructed by a perspective volume-rendering algorithm from the volume datasets of MR cisternography, obtained by a T2-weighted 3D fast spin-echo sequence, and coordinated MR angiography, by a 3D time-of-flight sequence. On the fusion images, the anatomic relationship of an aneurysm to the perianeurysmal structures was assessed, and the influence of perianeurysmal environment on the deformation and bleb formation of the aneurysm was investigated.&lt;/p&gt;&lt;p&gt;&lt;i&gt;RESULTS:&lt;/i&gt; Marked and minor deformation and bleb formation of the aneurysmal dome were found at the areas confronted or adjacent to a certain contact with perianeurysmal structures, including cranial nerves, brain parenchyma, cranial base bones, petroclinoidal dural folds, and dura mater.&lt;/p&gt;&lt;p&gt;&lt;i&gt;CONCLUSION:&lt;/i&gt; Fusion images of 3D MR cisternography and angiography can depict the contact of an aneurysm with its perianeurysmal environment; this may provide an additional parameter in consideration for the natural history of cerebral aneurysms.&lt;/p&gt;" />
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<meta name="twitter:description" content="BACKGROUND AND PURPOSE: Surface irregularity and bleb formation are anatomical factors that are associated with aneurysm rupture. The perianeurysmal environment has been proposed as one factor that may influence aneurysm morphology. We have developed a fusion imaging technique of 3D MR cisternography and angiography that allows clear visualization of an aneurysm and its environment. This technique may prove useful in further understanding of the natural history of intracranial aneurysms.

METHODS: Fusion images of 3D MR cisternography and angiography were reconstructed by a perspective volume-rendering algorithm from the volume datasets of MR cisternography, obtained by a T2-weighted 3D fast spin-echo sequence, and coordinated MR angiography, by a 3D time-of-flight sequence. On the fusion images, the anatomic relationship of an aneurysm to the perianeurysmal structures was assessed, and the influence of perianeurysmal environment on the deformation and bleb formation of the aneurysm was investigated.

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<meta name="og-description" property="og:description" content="BACKGROUND AND PURPOSE: Surface irregularity and bleb formation are anatomical factors that are associated with aneurysm rupture. The perianeurysmal environment has been proposed as one factor that may influence aneurysm morphology. We have developed a fusion imaging technique of 3D MR cisternography and angiography that allows clear visualization of an aneurysm and its environment. This technique may prove useful in further understanding of the natural history of intracranial aneurysms.

METHODS: Fusion images of 3D MR cisternography and angiography were reconstructed by a perspective volume-rendering algorithm from the volume datasets of MR cisternography, obtained by a T2-weighted 3D fast spin-echo sequence, and coordinated MR angiography, by a 3D time-of-flight sequence. On the fusion images, the anatomic relationship of an aneurysm to the perianeurysmal structures was assessed, and the influence of perianeurysmal environment on the deformation and bleb formation of the aneurysm was investigated.

RESULTS: Marked and minor deformation and bleb formation of the aneurysmal dome were found at the areas confronted or adjacent to a certain contact with perianeurysmal structures, including cranial nerves, brain parenchyma, cranial base bones, petroclinoidal dural folds, and dura mater.

CONCLUSION: Fusion images of 3D MR cisternography and angiography can depict the contact of an aneurysm with its perianeurysmal environment; this may provide an additional parameter in consideration for the natural history of cerebral aneurysms." />
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    <title>Influence of Perianeurysmal Environment on the Deformation and Bleb Formation of the Unruptured Cerebral Aneurysm: Assessment with Fusion Imaging of 3D MR Cisternography and 3D MR Angiography | American Journal of Neuroradiology</title>  
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      <h1 class="highwire-cite-title" id="page-title">Influence of Perianeurysmal Environment on the Deformation and Bleb Formation of the Unruptured Cerebral Aneurysm: Assessment with Fusion Imaging of 3D MR Cisternography and 3D MR Angiography</h1>  
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<div id="hw-article-author-popups-top-node-3121--81995045290" style="display: none;"><div class="author-tooltip-0"><div class="author-tooltip-name">Toru Satoh </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=Toru%2BSatoh%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=Satoh%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 last"><a href="/search/author1%3AToru%2BSatoh%2B" rel="nofollow" class="" data-icon-position="" data-hide-link-title="0">Search for this author on this site</a></li></ul></div><div class="author-tooltip-1"><div class="author-tooltip-name">Megumi Omi </div><ul 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    <div class="highwire-markup"><div xmlns="http://www.w3.org/1999/xhtml" class="content-block-markup" xmlns:xhtml="http://www.w3.org/1999/xhtml"><div xmlns:xhtml="http://www.w3.org/1999/xhtml" class="contributors"><ol class="contributor-list" id="contrib-group-1"><li class="contributor" id="contrib-1"><span class="name">Toru Satoh</span><a id="xref-aff-1-1" class="xref-aff" href="#aff-1">a</a>, </li><li class="contributor" id="contrib-2"><span class="name">Megumi Omi</span><a id="xref-aff-2-1" class="xref-aff" href="#aff-2">b</a>, </li><li class="contributor" id="contrib-3"><span class="name">Chika Ohsako</span><a id="xref-aff-2-2" class="xref-aff" href="#aff-2">b</a>, </li><li class="contributor" id="contrib-4"><span class="name">Atsushi Katsumata</span><a id="xref-aff-3-1" class="xref-aff" href="#aff-3">c</a>, </li><li class="contributor" id="contrib-5"><span class="name">Yusuke Yoshimoto</span><a id="xref-aff-3-2" class="xref-aff" href="#aff-3">c</a>, </li><li class="contributor" id="contrib-6"><span class="name">Shoji Tsuchimoto</span><a id="xref-aff-3-3" class="xref-aff" href="#aff-3">c</a>, </li><li class="contributor" id="contrib-7"><span class="name">Keisuke Onoda</span><a id="xref-aff-4-1" class="xref-aff" href="#aff-4">d</a>, </li><li class="contributor" id="contrib-8"><span class="name">Koji Tokunaga</span><a id="xref-aff-4-2" class="xref-aff" href="#aff-4">d</a>, </li><li class="contributor" id="contrib-9"><span class="name">Kenji Sugiu</span><a id="xref-aff-4-3" class="xref-aff" href="#aff-4">d</a> and </li><li class="last" id="contrib-10"><span class="name">Isao Date</span><a id="xref-aff-4-4" class="xref-aff" href="#aff-4">d</a></li></ol><ol class="affiliation-list"><li class="aff"><a id="aff-1" name="aff-1"></a><address><sup>a</sup>Department of Neurological Surgery , Ryofukai Satoh Neurosurgical Hospital, Hiroshima, Japan</address></li><li class="aff"><a id="aff-2" name="aff-2"></a><address><sup>b</sup>Department of Diagnostic Radiology , Ryofukai Satoh Neurosurgical Hospital, Hiroshima, Japan</address></li><li class="aff"><a id="aff-3" name="aff-3"></a><address><sup>c</sup>Department of Neurological Surgery , Onomichi Municipal Hospital, Japan</address></li><li class="aff"><a id="aff-4" name="aff-4"></a><address><sup>d</sup>Department of Neurological Surgery , Okayama University Graduate School of Medicine, Dentistry and Pharmacy, Okayama, Japan</address></li></ol><ol class="corresp-list"><li class="corresp" id="corresp-1">Address correspondence to Toru Satoh, Department of Neurological Surgery, Ryofukai Satoh Neurosurgical Hospital, 5-23-23 Matsunaga, Fukuyama, Hiroshima 729-0104, Japan (e-mail: <span class="em-link"><span class="em-addr">ucsfbtrc{at}urban.ne.jp</span></span>)</li></ol></div></div><a href="http://ajnr-stage2.stage.highwire.org/content/26/8/2010.full" class="hw-link hw-link-article-full-text" data-icon-position="" data-hide-link-title="0">View Full Text</a></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">Toru</span> <span class="nlm-surname">Satoh</span></span>, <span class="highwire-citation-author" data-delta="1"><span class="nlm-given-names">Megumi</span> <span class="nlm-surname">Omi</span></span>, <span class="highwire-citation-author" data-delta="2"><span class="nlm-given-names">Chika</span> <span class="nlm-surname">Ohsako</span></span>, <span class="highwire-citation-author" data-delta="3"><span class="nlm-given-names">Atsushi</span> <span class="nlm-surname">Katsumata</span></span>, <span class="highwire-citation-author" data-delta="4"><span class="nlm-given-names">Yusuke</span> <span class="nlm-surname">Yoshimoto</span></span>, <span class="highwire-citation-author" data-delta="5"><span class="nlm-given-names">Shoji</span> <span class="nlm-surname">Tsuchimoto</span></span>, <span class="highwire-citation-author" data-delta="6"><span class="nlm-given-names">Keisuke</span> <span class="nlm-surname">Onoda</span></span>, <span class="highwire-citation-author" data-delta="7"><span class="nlm-given-names">Koji</span> <span class="nlm-surname">Tokunaga</span></span>, <span class="highwire-citation-author" data-delta="8"><span class="nlm-given-names">Kenji</span> <span class="nlm-surname">Sugiu</span></span>, <span class="highwire-citation-author" data-delta="9"><span class="nlm-given-names">Isao</span> <span class="nlm-surname">Date</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">Sep 2005, </span><span  class="highwire-cite-metadata-volume highwire-cite-metadata">26 </span><span  class="highwire-cite-metadata-issue highwire-cite-metadata">(8) </span><span  class="highwire-cite-metadata-pages highwire-cite-metadata">2010-2018; </span></div>
  
  
  
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      <div class="highwire-cite-title">Influence of Perianeurysmal Environment on the Deformation and Bleb Formation of the Unruptured Cerebral Aneurysm: Assessment with Fusion Imaging of 3D MR Cisternography and 3D MR Angiography</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">Toru</span> <span class="nlm-surname">Satoh</span></span>, <span class="highwire-citation-author" data-delta="1"><span class="nlm-given-names">Megumi</span> <span class="nlm-surname">Omi</span></span>, <span class="highwire-citation-author" data-delta="2"><span class="nlm-given-names">Chika</span> <span class="nlm-surname">Ohsako</span></span>, <span class="highwire-citation-author" data-delta="3"><span class="nlm-given-names">Atsushi</span> <span class="nlm-surname">Katsumata</span></span>, <span class="highwire-citation-author" data-delta="4"><span class="nlm-given-names">Yusuke</span> <span class="nlm-surname">Yoshimoto</span></span>, <span class="highwire-citation-author" data-delta="5"><span class="nlm-given-names">Shoji</span> <span class="nlm-surname">Tsuchimoto</span></span>, <span class="highwire-citation-author" data-delta="6"><span class="nlm-given-names">Keisuke</span> <span class="nlm-surname">Onoda</span></span>, <span class="highwire-citation-author" data-delta="7"><span class="nlm-given-names">Koji</span> <span class="nlm-surname">Tokunaga</span></span>, <span class="highwire-citation-author" data-delta="8"><span class="nlm-given-names">Kenji</span> <span class="nlm-surname">Sugiu</span></span>, <span class="highwire-citation-author" data-delta="9"><span class="nlm-given-names">Isao</span> <span class="nlm-surname">Date</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">Sep 2005, </span><span  class="highwire-cite-metadata-volume highwire-cite-metadata">26 </span><span  class="highwire-cite-metadata-issue highwire-cite-metadata">(8) </span><span  class="highwire-cite-metadata-pages highwire-cite-metadata">2010-2018; </span></div>
  
  
  
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