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<meta name="DC.Title" content="Monitoring Serial Change in the Lumen and Outer Wall of Vertebrobasilar Aneurysms" />
<meta name="DC.Identifier" content="10.3174/ajnr.A0796" />
<meta name="DC.Date" content="2008-02-01" />
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<meta name="DC.Description" content="BACKGROUND AND PURPOSE: Estimation of the stability of fusiform aneurysms of the basilar artery requires precise monitoring of the luminal and outer wall volumes. In this report we describe the use of MR imaging and 3D postprocessing methods to study the evolution of those aneurysms.

MATERIALS AND METHODS: Nine patients with fusiform basilar artery aneurysms underwent MR imaging studies covering at least 2 different time points (mean delay between studies, 7.1 ± 4.6 months). Imaging included multisection 2D T1-weighted fast spin-echo and/or 3D steady-state imaging to assess the outer wall and contrast-enhanced MR angiography to study the lumen. The outer and inner walls were extracted using, respectively, a manual delineation (made by 2 observers) and a thresholding technique. The 2 studies were subsequently coregistered at each time point, as well as between differing time points. Volumes of each vessel component were calculated.

RESULTS: Mean volume was 6760 ± 6620 mm3 for the outer wall and 2060 ± 1200 mm3 for the lumen. Evolution of the lumen and outer wall was highly variable from 1 patient to another, with a trend toward increase of the vessel wall for the largest aneurysms. Interobserver reproducibility for outer wall delineation was on the order of 90%.

CONCLUSION: Combining MR imaging methods to study both the outer wall and lumen with 3D registration tools provides a powerful method for progression of fusiform basilar aneurysmal disease." />
<meta name="DC.Contributor" content="L. Boussel" />
<meta name="DC.Contributor" content="M. Wintermark" />
<meta name="DC.Contributor" content="A. Martin" />
<meta name="DC.Contributor" content="B. Dispensa" />
<meta name="DC.Contributor" content="R. VanTijen" />
<meta name="DC.Contributor" content="J. Leach" />
<meta name="DC.Contributor" content="V. Rayz" />
<meta name="DC.Contributor" content="G. Acevedo-Bolton" />
<meta name="DC.Contributor" content="M. Lawton" />
<meta name="DC.Contributor" content="R. Higashida" />
<meta name="DC.Contributor" content="W.S. Smith" />
<meta name="DC.Contributor" content="W.L. Young" />
<meta name="DC.Contributor" content="D. Saloner" />
<meta name="article:published_time" content="2008-02-01" />
<meta name="article:section" content="INTERVENTIONAL" />
<meta name="citation_title" content="Monitoring Serial Change in the Lumen and Outer Wall of Vertebrobasilar Aneurysms" />
<meta name="citation_abstract" lang="en" content="&lt;p&gt;&lt;b&gt;BACKGROUND AND PURPOSE:&lt;/b&gt;Estimation of the stability of fusiform aneurysms of the basilar artery requires precise monitoring of the luminal and outer wall volumes. In this report we describe the use of MR imaging and 3D postprocessing methods to study the evolution of those aneurysms.&lt;/p&gt;&lt;p&gt;&lt;b&gt;MATERIALS AND METHODS:&lt;/b&gt;Nine patients with fusiform basilar artery aneurysms underwent MR imaging studies covering at least 2 different time points (mean delay between studies, 7.1 ± 4.6 months). Imaging included multisection 2D T1-weighted fast spin-echo and/or 3D steady-state imaging to assess the outer wall and contrast-enhanced MR angiography to study the lumen. The outer and inner walls were extracted using, respectively, a manual delineation (made by 2 observers) and a thresholding technique. The 2 studies were subsequently coregistered at each time point, as well as between differing time points. Volumes of each vessel component were calculated.&lt;/p&gt;&lt;p&gt;&lt;b&gt;RESULTS:&lt;/b&gt;Mean volume was 6760 ± 6620 mm&lt;sup&gt;3&lt;/sup&gt; for the outer wall and 2060 ± 1200 mm&lt;sup&gt;3&lt;/sup&gt; for the lumen. Evolution of the lumen and outer wall was highly variable from 1 patient to another, with a trend toward increase of the vessel wall for the largest aneurysms. Interobserver reproducibility for outer wall delineation was on the order of 90%.&lt;/p&gt;&lt;p&gt;&lt;b&gt;CONCLUSION:&lt;/b&gt;Combining MR imaging methods to study both the outer wall and lumen with 3D registration tools provides a powerful method for progression of fusiform basilar aneurysmal disease.&lt;/p&gt;" />
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<meta name="twitter:title" content="Monitoring Serial Change in the Lumen and Outer Wall of Vertebrobasilar Aneurysms" />
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<meta name="twitter:description" content="BACKGROUND AND PURPOSE: Estimation of the stability of fusiform aneurysms of the basilar artery requires precise monitoring of the luminal and outer wall volumes. In this report we describe the use of MR imaging and 3D postprocessing methods to study the evolution of those aneurysms.

MATERIALS AND METHODS: Nine patients with fusiform basilar artery aneurysms underwent MR imaging studies covering at least 2 different time points (mean delay between studies, 7.1 ± 4.6 months). Imaging included multisection 2D T1-weighted fast spin-echo and/or 3D steady-state imaging to assess the outer wall and contrast-enhanced MR angiography to study the lumen. The outer and inner walls were extracted using, respectively, a manual delineation (made by 2 observers) and a thresholding technique. The 2 studies were subsequently coregistered at each time point, as well as between differing time points. Volumes of each vessel component were calculated.

RESULTS: Mean volume was 6760 ± 6620 mm3 for the outer wall and 2060 ± 1200 mm3 for the lumen. Evolution of the lumen and outer wall was highly variable from 1 patient to another, with a trend toward increase of the vessel wall for the largest aneurysms. Interobserver reproducibility for outer wall delineation was on the order of 90%.

CONCLUSION: Combining MR imaging methods to study both the outer wall and lumen with 3D registration tools provides a powerful method for progression of fusiform basilar aneurysmal disease." />
<meta name="og-title" property="og:title" content="Monitoring Serial Change in the Lumen and Outer Wall of Vertebrobasilar Aneurysms" />
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<meta name="og-description" property="og:description" content="BACKGROUND AND PURPOSE: Estimation of the stability of fusiform aneurysms of the basilar artery requires precise monitoring of the luminal and outer wall volumes. In this report we describe the use of MR imaging and 3D postprocessing methods to study the evolution of those aneurysms.

MATERIALS AND METHODS: Nine patients with fusiform basilar artery aneurysms underwent MR imaging studies covering at least 2 different time points (mean delay between studies, 7.1 ± 4.6 months). Imaging included multisection 2D T1-weighted fast spin-echo and/or 3D steady-state imaging to assess the outer wall and contrast-enhanced MR angiography to study the lumen. The outer and inner walls were extracted using, respectively, a manual delineation (made by 2 observers) and a thresholding technique. The 2 studies were subsequently coregistered at each time point, as well as between differing time points. Volumes of each vessel component were calculated.

RESULTS: Mean volume was 6760 ± 6620 mm3 for the outer wall and 2060 ± 1200 mm3 for the lumen. Evolution of the lumen and outer wall was highly variable from 1 patient to another, with a trend toward increase of the vessel wall for the largest aneurysms. Interobserver reproducibility for outer wall delineation was on the order of 90%.

CONCLUSION: Combining MR imaging methods to study both the outer wall and lumen with 3D registration tools provides a powerful method for progression of fusiform basilar aneurysmal disease." />
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    <div class="highwire-article-citation highwire-citation-type-highwire-article node7871--5" data-node-nid="7871" id="top-node-7871--61629866279" data-pisa="ajnr;29/2/259" data-pisa-master="ajnr;ajnr.A0796" data-apath="/ajnr/29/2/259.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">Monitoring Serial Change in the Lumen and Outer Wall of Vertebrobasilar Aneurysms</h1>  
    	<div class="highwire-cite-authors"><span  class="highwire-citation-authors"><span class="highwire-citation-author first" data-delta="0">L. Boussel</span>, <span class="highwire-citation-author" data-delta="1">M. Wintermark</span>, <span class="highwire-citation-author" data-delta="2">A. Martin</span>, <span class="highwire-citation-author" data-delta="3">B. Dispensa</span>, <span class="highwire-citation-author" data-delta="4">R. VanTijen</span>, <span class="highwire-citation-author" data-delta="5">J. Leach</span>, <span class="highwire-citation-author" data-delta="6">V. Rayz</span>, <span class="highwire-citation-author" data-delta="7">G. Acevedo-Bolton</span>, <span class="highwire-citation-author" data-delta="8">M. Lawton</span>, <span class="highwire-citation-author" data-delta="9">R. Higashida</span>, <span class="highwire-citation-author" data-delta="10">W.S. Smith</span>, <span class="highwire-citation-author" data-delta="11">W.L. Young</span> and <span class="highwire-citation-author" data-delta="12">D. Saloner</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 2008,  </span><span  class="highwire-cite-metadata-volume highwire-cite-metadata">29 </span><span  class="highwire-cite-metadata-issue highwire-cite-metadata">(2) </span><span  class="highwire-cite-metadata-pages highwire-cite-metadata">259-264; </span><span  class="highwire-cite-metadata-doi highwire-cite-metadata">DOI: https://doi.org/10.3174/ajnr.A0796 </span></div>
  
  
  
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<div id="hw-article-author-popups-top-node-7871--61629866279" style="display: none;"><div class="author-tooltip-0"><div class="author-tooltip-name">L. Boussel </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=L.%2BBoussel%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=Boussel%20L&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%3AL.%2BBoussel%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">M. 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        	<div class="highwire-cite-metadata"><span  class="highwire-cite-metadata-volume highwire-cite-metadata">Vol. 29</span>, <span  class="highwire-cite-metadata-issue highwire-cite-metadata">Issue 2 </span><div  class="highwire-cite-metadata-pubdate highwire-cite-metadata">February 2008 </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 2008, </span><span  class="highwire-cite-metadata-volume highwire-cite-metadata">29 </span><span  class="highwire-cite-metadata-issue highwire-cite-metadata">(2) </span><span  class="highwire-cite-metadata-pages highwire-cite-metadata">259-264; </span><span  class="highwire-cite-metadata-doi highwire-cite-metadata"><span class="label">DOI:</span> 10.3174/ajnr.A0796 </span></div>
  
  
  
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      <div class="highwire-cite-title">Monitoring Serial Change in the Lumen and Outer Wall of Vertebrobasilar 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">L.</span> <span class="nlm-surname">Boussel</span></span>, <span class="highwire-citation-author" data-delta="1"><span class="nlm-given-names">M.</span> <span class="nlm-surname">Wintermark</span></span>, <span class="highwire-citation-author" data-delta="2"><span class="nlm-given-names">A.</span> <span class="nlm-surname">Martin</span></span>, <span class="highwire-citation-author" data-delta="3"><span class="nlm-given-names">B.</span> <span class="nlm-surname">Dispensa</span></span>, <span class="highwire-citation-author" data-delta="4"><span class="nlm-given-names">R.</span> <span class="nlm-surname">VanTijen</span></span>, <span class="highwire-citation-author" data-delta="5"><span class="nlm-given-names">J.</span> <span class="nlm-surname">Leach</span></span>, <span class="highwire-citation-author" data-delta="6"><span class="nlm-given-names">V.</span> <span class="nlm-surname">Rayz</span></span>, <span class="highwire-citation-author" data-delta="7"><span class="nlm-given-names">G.</span> <span class="nlm-surname">Acevedo-Bolton</span></span>, <span class="highwire-citation-author" data-delta="8"><span class="nlm-given-names">M.</span> <span class="nlm-surname">Lawton</span></span>, <span class="highwire-citation-author" data-delta="9"><span class="nlm-given-names">R.</span> <span class="nlm-surname">Higashida</span></span>, <span class="highwire-citation-author" data-delta="10"><span class="nlm-given-names">W.S.</span> <span class="nlm-surname">Smith</span></span>, <span class="highwire-citation-author" data-delta="11"><span class="nlm-given-names">W.L.</span> <span class="nlm-surname">Young</span></span>, <span class="highwire-citation-author" data-delta="12"><span class="nlm-given-names">D.</span> <span class="nlm-surname">Saloner</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">Feb 2008, </span><span  class="highwire-cite-metadata-volume highwire-cite-metadata">29 </span><span  class="highwire-cite-metadata-issue highwire-cite-metadata">(2) </span><span  class="highwire-cite-metadata-pages highwire-cite-metadata">259-264; </span><span  class="highwire-cite-metadata-doi highwire-cite-metadata"><span class="label">DOI:</span> 10.3174/ajnr.A0796 </span></div>
  
  
  
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