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<meta name="DC.Title" content="Usefulness of MR Imaging for the Assessment of Nonophthalmic Paraclinoid Aneurysms" />
<meta name="DC.Identifier" content="10.3174/ajnr.A0734" />
<meta name="DC.Date" content="2008-01-01" />
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<meta name="DC.Description" content="BACKGROUND AND PURPOSE: The neuroradiologic location of asymptomatic paraclinoid aneurysms is decisive for patient management. In a preliminary study, we designed a paraclinoid MR protocol (PMP) including high-resolution T2-weighted images in 2 orthogonal planes to define the inferior limit of the distal dural ring plane that represents the borderline between the intradural and extradural internal carotid artery. In this clinical study, we compared this protocol with digital subtraction angiography (DSA) for the location of paraclinoid aneurysms.

Materials and METHODS: During a 3-year period, we performed PMP and conventional angiograms in 14 consecutive patients with 17 asymptomatic paraclinoid aneurysms. Ophthalmic (superior) aneurysms were excluded. Two independent observers reviewed MR imaging data, and a third experienced neuroradiologist analyzed the conventional angiograms. MR imaging and conventional angiograms were independently analyzed, and interpretations obtained with each technique were compared.

RESULTS: PMP allowed correct visualization of the aneurysms in all patients. No significant differences ( P &gt;.05) were found between the DSA and PMP for the measurement of the aneurysmal neck or sac. Interobserver agreement was good. MR imaging was discordant with conventional angiography regarding the position around the cavernous sinus of the aneurysmal neck and sac in 5 cases. PMP images were helpful for treatment decisions in 4 cases.

CONCLUSION: PMP is an interesting tool that might be used in association with conventional angiography for the assessment of paraclinoid aneurysms." />
<meta name="DC.Contributor" content="L. Thines" />
<meta name="DC.Contributor" content="J.-Y. Gauvrit" />
<meta name="DC.Contributor" content="X. Leclerc" />
<meta name="DC.Contributor" content="D. Le Gars" />
<meta name="DC.Contributor" content="C. Delmaire" />
<meta name="DC.Contributor" content="J.-P. Pruvo" />
<meta name="DC.Contributor" content="J.-P. Lejeune" />
<meta name="article:published_time" content="2008-01-01" />
<meta name="article:section" content="BRAIN" />
<meta name="citation_title" content="Usefulness of MR Imaging for the Assessment of Nonophthalmic Paraclinoid Aneurysms" />
<meta name="citation_abstract" lang="en" content="&lt;p&gt;&lt;b&gt;BACKGROUND AND PURPOSE:&lt;/b&gt; The neuroradiologic location of asymptomatic paraclinoid aneurysms is decisive for patient management. In a preliminary study, we designed a paraclinoid MR protocol (PMP) including high-resolution T2-weighted images in 2 orthogonal planes to define the inferior limit of the distal dural ring plane that represents the borderline between the intradural and extradural internal carotid artery. In this clinical study, we compared this protocol with digital subtraction angiography (DSA) for the location of paraclinoid aneurysms.&lt;/p&gt;&lt;p&gt;&lt;b&gt;Materials and METHODS:&lt;/b&gt; During a 3-year period, we performed PMP and conventional angiograms in 14 consecutive patients with 17 asymptomatic paraclinoid aneurysms. Ophthalmic (superior) aneurysms were excluded. Two independent observers reviewed MR imaging data, and a third experienced neuroradiologist analyzed the conventional angiograms. MR imaging and conventional angiograms were independently analyzed, and interpretations obtained with each technique were compared.&lt;/p&gt;&lt;p&gt;&lt;b&gt;RESULTS:&lt;/b&gt; PMP allowed correct visualization of the aneurysms in all patients. No significant differences (&lt;i&gt;P&lt;/i&gt; &amp;gt;.05) were found between the DSA and PMP for the measurement of the aneurysmal neck or sac. Interobserver agreement was good. MR imaging was discordant with conventional angiography regarding the position around the cavernous sinus of the aneurysmal neck and sac in 5 cases. PMP images were helpful for treatment decisions in 4 cases.&lt;/p&gt;&lt;p&gt;&lt;b&gt;CONCLUSION:&lt;/b&gt; PMP is an interesting tool that might be used in association with conventional angiography for the assessment of paraclinoid aneurysms.&lt;/p&gt;" />
<meta name="citation_journal_title" content="American Journal of Neuroradiology" />
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<meta name="citation_publication_date" content="2008/01/01" />
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<meta name="citation_volume" content="29" />
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<meta name="citation_author" content="L. Thines" />
<meta name="citation_author" content="J.-Y. Gauvrit" />
<meta name="citation_author" content="X. Leclerc" />
<meta name="citation_author" content="D. Le Gars" />
<meta name="citation_author" content="C. Delmaire" />
<meta name="citation_author" content="J.-P. Pruvo" />
<meta name="citation_author" content="J.-P. Lejeune" />
<meta name="twitter:title" content="Usefulness of MR Imaging for the Assessment of Nonophthalmic Paraclinoid Aneurysms" />
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<meta name="twitter:description" content="BACKGROUND AND PURPOSE: The neuroradiologic location of asymptomatic paraclinoid aneurysms is decisive for patient management. In a preliminary study, we designed a paraclinoid MR protocol (PMP) including high-resolution T2-weighted images in 2 orthogonal planes to define the inferior limit of the distal dural ring plane that represents the borderline between the intradural and extradural internal carotid artery. In this clinical study, we compared this protocol with digital subtraction angiography (DSA) for the location of paraclinoid aneurysms.

Materials and METHODS: During a 3-year period, we performed PMP and conventional angiograms in 14 consecutive patients with 17 asymptomatic paraclinoid aneurysms. Ophthalmic (superior) aneurysms were excluded. Two independent observers reviewed MR imaging data, and a third experienced neuroradiologist analyzed the conventional angiograms. MR imaging and conventional angiograms were independently analyzed, and interpretations obtained with each technique were compared.

RESULTS: PMP allowed correct visualization of the aneurysms in all patients. No significant differences ( P &gt;.05) were found between the DSA and PMP for the measurement of the aneurysmal neck or sac. Interobserver agreement was good. MR imaging was discordant with conventional angiography regarding the position around the cavernous sinus of the aneurysmal neck and sac in 5 cases. PMP images were helpful for treatment decisions in 4 cases.

CONCLUSION: PMP is an interesting tool that might be used in association with conventional angiography for the assessment of paraclinoid aneurysms." />
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<meta name="og-description" property="og:description" content="BACKGROUND AND PURPOSE: The neuroradiologic location of asymptomatic paraclinoid aneurysms is decisive for patient management. In a preliminary study, we designed a paraclinoid MR protocol (PMP) including high-resolution T2-weighted images in 2 orthogonal planes to define the inferior limit of the distal dural ring plane that represents the borderline between the intradural and extradural internal carotid artery. In this clinical study, we compared this protocol with digital subtraction angiography (DSA) for the location of paraclinoid aneurysms.

Materials and METHODS: During a 3-year period, we performed PMP and conventional angiograms in 14 consecutive patients with 17 asymptomatic paraclinoid aneurysms. Ophthalmic (superior) aneurysms were excluded. Two independent observers reviewed MR imaging data, and a third experienced neuroradiologist analyzed the conventional angiograms. MR imaging and conventional angiograms were independently analyzed, and interpretations obtained with each technique were compared.

RESULTS: PMP allowed correct visualization of the aneurysms in all patients. No significant differences ( P &gt;.05) were found between the DSA and PMP for the measurement of the aneurysmal neck or sac. Interobserver agreement was good. MR imaging was discordant with conventional angiography regarding the position around the cavernous sinus of the aneurysmal neck and sac in 5 cases. PMP images were helpful for treatment decisions in 4 cases.

CONCLUSION: PMP is an interesting tool that might be used in association with conventional angiography for the assessment of paraclinoid aneurysms." />
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      <h1 class="highwire-cite-title" id="page-title">Usefulness of MR Imaging for the Assessment of Nonophthalmic Paraclinoid Aneurysms</h1>  
    	<div class="highwire-cite-authors"><span  class="highwire-citation-authors"><span class="highwire-citation-author first" data-delta="0">L. Thines</span>, <span class="highwire-citation-author" data-delta="1">J.-Y. Gauvrit</span>, <span class="highwire-citation-author" data-delta="2">X. Leclerc</span>, <span class="highwire-citation-author" data-delta="3">D. Le Gars</span>, <span class="highwire-citation-author" data-delta="4">C. Delmaire</span>, <span class="highwire-citation-author" data-delta="5">J.-P. Pruvo</span> and <span class="highwire-citation-author" data-delta="6">J.-P. Lejeune</span></span></div>
  
    	<div class="highwire-cite-metadata"><span  class="highwire-cite-metadata-journal highwire-cite-metadata">American Journal of Neuroradiology </span><span  class="highwire-cite-metadata-date highwire-cite-metadata">January 2008,  </span><span  class="highwire-cite-metadata-volume highwire-cite-metadata">29 </span><span  class="highwire-cite-metadata-issue highwire-cite-metadata">(1) </span><span  class="highwire-cite-metadata-pages highwire-cite-metadata">125-129; </span><span  class="highwire-cite-metadata-doi highwire-cite-metadata">DOI: https://doi.org/10.3174/ajnr.A0734 </span></div>
  
  
  
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<div id="hw-article-author-popups-top-node-8033--8986691386" style="display: none;"><div class="author-tooltip-0"><div class="author-tooltip-name">L. Thines </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.%2BThines%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=Thines%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.%2BThines%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">J.-Y. 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Leclerc </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=X.%2BLeclerc%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=Leclerc%20X&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%3AX.%2BLeclerc%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-3"><div class="author-tooltip-name">D. Le Gars </div><ul class="author-tooltip-find-more"><li class="author-tooltip-gs-link first"><a href="/lookup/google-scholar?link_type=googlescholar&amp;gs_type=author&amp;author%5B0%5D=D.%2BLe%2BGars%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=Le%20Gars%20D&amp;link_type=AUTHORSEARCH" target="_blank" class="" data-icon-position="" data-hide-link-title="0">Find this author on PubMed</a></li><li class="author-site-search-link last"><a href="/search/author1%3AD.%2BLe%2BGars%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-4"><div class="author-tooltip-name">C. Delmaire </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=C.%2BDelmaire%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=Delmaire%20C&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%3AC.%2BDelmaire%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-5"><div class="author-tooltip-name">J.-P. 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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">L. Thines</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">J.-Y. Gauvrit</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">X. Leclerc</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">D. Le Gars</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">C. Delmaire</span><a id="xref-aff-2-3" class="xref-aff" href="#aff-2">b</a>, </li><li class="contributor" id="contrib-6"><span class="name">J.-P. Pruvo</span><a id="xref-aff-2-4" class="xref-aff" href="#aff-2">b</a> and </li><li class="last" id="contrib-7"><span class="name">J.-P. Lejeune</span><a id="xref-aff-1-2" class="xref-aff" href="#aff-1">a</a></li></ol><ol class="affiliation-list"><li class="aff"><a id="aff-1" name="aff-1"></a><address><sup>a</sup>Department of Neurosurgery, Centre Hospitalier Régional et Universitaire, Lille, France</address></li><li class="aff"><a id="aff-2" name="aff-2"></a><address><sup>b</sup>Department of Neuroradiology, Centre Hospitalier Régional et Universitaire, Lille, France</address></li><li class="aff"><a id="aff-3" name="aff-3"></a><address><sup>c</sup>Department of Neurosurgery and Anatomy, Centre Hospitalier Régional et Universitaire, Amiens, France</address></li></ol><ol class="corresp-list"><li class="corresp" id="corresp-1">Please address correspondence to Dr. Laurent Thines, Clinique Neurochirurgicale, Hôpital Roger-Salengro, CHRU, 59037 Lille Cedex, France; e-mail: <span class="em-link"><span class="em-addr">laurent.thines{at}wanadoo.fr</span></span></li></ol></div></div><a href="http://ajnr-stage2.stage.highwire.org/content/29/1/125.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">L.</span> <span class="nlm-surname">Thines</span></span>, <span class="highwire-citation-author" data-delta="1"><span class="nlm-given-names">J.-Y.</span> <span class="nlm-surname">Gauvrit</span></span>, <span class="highwire-citation-author" data-delta="2"><span class="nlm-given-names">X.</span> <span class="nlm-surname">Leclerc</span></span>, <span class="highwire-citation-author" data-delta="3"><span class="nlm-given-names">D.</span> <span class="nlm-surname">Le Gars</span></span>, <span class="highwire-citation-author" data-delta="4"><span class="nlm-given-names">C.</span> <span class="nlm-surname">Delmaire</span></span>, <span class="highwire-citation-author" data-delta="5"><span class="nlm-given-names">J.-P.</span> <span class="nlm-surname">Pruvo</span></span>, <span class="highwire-citation-author" data-delta="6"><span class="nlm-given-names">J.-P.</span> <span class="nlm-surname">Lejeune</span></span></span></div>
  
    	<div class="highwire-cite-metadata"><span  class="highwire-cite-metadata-journal highwire-cite-metadata">American Journal of Neuroradiology </span><span  class="highwire-cite-metadata-date highwire-cite-metadata">Jan 2008, </span><span  class="highwire-cite-metadata-volume highwire-cite-metadata">29 </span><span  class="highwire-cite-metadata-issue highwire-cite-metadata">(1) </span><span  class="highwire-cite-metadata-pages highwire-cite-metadata">125-129; </span><span  class="highwire-cite-metadata-doi highwire-cite-metadata"><span class="label">DOI:</span> 10.3174/ajnr.A0734 </span></div>
  
  
  
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      <div class="highwire-cite-title">Usefulness of MR Imaging for the Assessment of Nonophthalmic Paraclinoid 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">Thines</span></span>, <span class="highwire-citation-author" data-delta="1"><span class="nlm-given-names">J.-Y.</span> <span class="nlm-surname">Gauvrit</span></span>, <span class="highwire-citation-author" data-delta="2"><span class="nlm-given-names">X.</span> <span class="nlm-surname">Leclerc</span></span>, <span class="highwire-citation-author" data-delta="3"><span class="nlm-given-names">D.</span> <span class="nlm-surname">Le Gars</span></span>, <span class="highwire-citation-author" data-delta="4"><span class="nlm-given-names">C.</span> <span class="nlm-surname">Delmaire</span></span>, <span class="highwire-citation-author" data-delta="5"><span class="nlm-given-names">J.-P.</span> <span class="nlm-surname">Pruvo</span></span>, <span class="highwire-citation-author" data-delta="6"><span class="nlm-given-names">J.-P.</span> <span class="nlm-surname">Lejeune</span></span></span></div>
  
    	<div class="highwire-cite-metadata"><span  class="highwire-cite-metadata-journal highwire-cite-metadata">American Journal of Neuroradiology </span><span  class="highwire-cite-metadata-date highwire-cite-metadata">Jan 2008, </span><span  class="highwire-cite-metadata-volume highwire-cite-metadata">29 </span><span  class="highwire-cite-metadata-issue highwire-cite-metadata">(1) </span><span  class="highwire-cite-metadata-pages highwire-cite-metadata">125-129; </span><span  class="highwire-cite-metadata-doi highwire-cite-metadata"><span class="label">DOI:</span> 10.3174/ajnr.A0734 </span></div>
  
  
  
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