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<meta name="DC.Title" content="Predictors of aneurysmal occlusion in the period immediately after endovascular treatment with detachable coils: a multivariate analysis." />
<meta name="DC.Date" content="1998-10-01" />
<meta name="DC.Publisher" content="American Journal of Neuroradiology" />
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<meta name="DC.Description" content="BACKGROUND AND PURPOSE Complete intracranial aneurysmal occlusion by endovascular techniques is required for successful treatment and is presumably influenced by several parameters. The purpose of this study was to investigate whether operator experience and angiographic characteristics of intracranial aneurysms correspond to the degree of endovascular occlusion in the period immediately after treatment with Guglielmi detachable coils (GDCs).

METHODS Pre- and posttreatment angiograms of 72 patients undergoing GDC treatment were reviewed retrospectively. The following angiographic characteristics of the aneurysms were evaluated: largest diameter of the sac, volume, neck size, shape, type, cerebrovascular site, surroundings, and likely direction of aneurysmal inflow as judged by a score developed by measuring aneurysm/parent artery angulation. The chronological sequence in which the aneurysms were treated was used as a measure of operator experience. A chi2-test was used to identify parameters that correlated with outcomes of total (100%) or partial (&lt;100%) occlusion. A multivariate analysis was used to determine the factors most predictive of aneurysmal occlusion at therapy.

RESULTS Parameters that correlated with the unsatisfactory result of partial occlusion were large aneurysmal diameter, volume, and neck size, more direct inflow (ie, increasingly obtuse aneurysm/parent artery angulation), and early chronological presentation in the series. The three factors most predictive of partial occlusion were large aneurysmal diameter, more direct inflow, and early chronological order of treatment.

CONCLUSION Several morphologic features of aneurysms were identified to help predict the immediate outcome of occlusion with GDCs. This study underscores the existence of a steep learning curve associated with GDC use in treating aneurysms and the importance of operator experience in achieving optimal therapeutic results." />
<meta name="DC.Contributor" content="F Turjman" />
<meta name="DC.Contributor" content="T F Massoud" />
<meta name="DC.Contributor" content="J Sayre" />
<meta name="DC.Contributor" content="F Viñuela" />
<meta name="article:published_time" content="1998-10-01" />
<meta name="citation_title" content="Predictors of aneurysmal occlusion in the period immediately after endovascular treatment with detachable coils: a multivariate analysis." />
<meta name="citation_abstract" lang="en" content="&lt;h3&gt;BACKGROUND AND PURPOSE&lt;/h3&gt;
&lt;p&gt;Complete intracranial aneurysmal occlusion by endovascular techniques is required for successful treatment and is presumably influenced by several parameters. The purpose of this study was to investigate whether operator experience and angiographic characteristics of intracranial aneurysms correspond to the degree of endovascular occlusion in the period immediately after treatment with Guglielmi detachable coils (GDCs).&lt;/p&gt;&lt;h3&gt;METHODS&lt;/h3&gt;
&lt;p&gt;Pre- and posttreatment angiograms of 72 patients undergoing GDC treatment were reviewed retrospectively. The following angiographic characteristics of the aneurysms were evaluated: largest diameter of the sac, volume, neck size, shape, type, cerebrovascular site, surroundings, and likely direction of aneurysmal inflow as judged by a score developed by measuring aneurysm/parent artery angulation. The chronological sequence in which the aneurysms were treated was used as a measure of operator experience. A chi2-test was used to identify parameters that correlated with outcomes of total (100%) or partial (&amp;lt;100%) occlusion. A multivariate analysis was used to determine the factors most predictive of aneurysmal occlusion at therapy.&lt;/p&gt;&lt;h3&gt;RESULTS&lt;/h3&gt;
&lt;p&gt;Parameters that correlated with the unsatisfactory result of partial occlusion were large aneurysmal diameter, volume, and neck size, more direct inflow (ie, increasingly obtuse aneurysm/parent artery angulation), and early chronological presentation in the series. The three factors most predictive of partial occlusion were large aneurysmal diameter, more direct inflow, and early chronological order of treatment.&lt;/p&gt;&lt;h3&gt;CONCLUSION&lt;/h3&gt;
&lt;p&gt;Several morphologic features of aneurysms were identified to help predict the immediate outcome of occlusion with GDCs. This study underscores the existence of a steep learning curve associated with GDC use in treating aneurysms and the importance of operator experience in achieving optimal therapeutic results.&lt;/p&gt;" />
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<meta name="citation_author" content="F Turjman" />
<meta name="citation_author" content="T F Massoud" />
<meta name="citation_author" content="J Sayre" />
<meta name="citation_author" content="F Viñuela" />
<meta name="twitter:title" content="Predictors of aneurysmal occlusion in the period immediately after endovascular treatment with detachable coils: a multivariate analysis." />
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<meta name="twitter:description" content="BACKGROUND AND PURPOSE Complete intracranial aneurysmal occlusion by endovascular techniques is required for successful treatment and is presumably influenced by several parameters. The purpose of this study was to investigate whether operator experience and angiographic characteristics of intracranial aneurysms correspond to the degree of endovascular occlusion in the period immediately after treatment with Guglielmi detachable coils (GDCs).

METHODS Pre- and posttreatment angiograms of 72 patients undergoing GDC treatment were reviewed retrospectively. The following angiographic characteristics of the aneurysms were evaluated: largest diameter of the sac, volume, neck size, shape, type, cerebrovascular site, surroundings, and likely direction of aneurysmal inflow as judged by a score developed by measuring aneurysm/parent artery angulation. The chronological sequence in which the aneurysms were treated was used as a measure of operator experience. A chi2-test was used to identify parameters that correlated with outcomes of total (100%) or partial (&lt;100%) occlusion. A multivariate analysis was used to determine the factors most predictive of aneurysmal occlusion at therapy.

RESULTS Parameters that correlated with the unsatisfactory result of partial occlusion were large aneurysmal diameter, volume, and neck size, more direct inflow (ie, increasingly obtuse aneurysm/parent artery angulation), and early chronological presentation in the series. The three factors most predictive of partial occlusion were large aneurysmal diameter, more direct inflow, and early chronological order of treatment.

CONCLUSION Several morphologic features of aneurysms were identified to help predict the immediate outcome of occlusion with GDCs. This study underscores the existence of a steep learning curve associated with GDC use in treating aneurysms and the importance of operator experience in achieving optimal therapeutic results." />
<meta name="og-title" property="og:title" content="Predictors of aneurysmal occlusion in the period immediately after endovascular treatment with detachable coils: a multivariate analysis." />
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<meta name="og-description" property="og:description" content="BACKGROUND AND PURPOSE Complete intracranial aneurysmal occlusion by endovascular techniques is required for successful treatment and is presumably influenced by several parameters. The purpose of this study was to investigate whether operator experience and angiographic characteristics of intracranial aneurysms correspond to the degree of endovascular occlusion in the period immediately after treatment with Guglielmi detachable coils (GDCs).

METHODS Pre- and posttreatment angiograms of 72 patients undergoing GDC treatment were reviewed retrospectively. The following angiographic characteristics of the aneurysms were evaluated: largest diameter of the sac, volume, neck size, shape, type, cerebrovascular site, surroundings, and likely direction of aneurysmal inflow as judged by a score developed by measuring aneurysm/parent artery angulation. The chronological sequence in which the aneurysms were treated was used as a measure of operator experience. A chi2-test was used to identify parameters that correlated with outcomes of total (100%) or partial (&lt;100%) occlusion. A multivariate analysis was used to determine the factors most predictive of aneurysmal occlusion at therapy.

RESULTS Parameters that correlated with the unsatisfactory result of partial occlusion were large aneurysmal diameter, volume, and neck size, more direct inflow (ie, increasingly obtuse aneurysm/parent artery angulation), and early chronological presentation in the series. The three factors most predictive of partial occlusion were large aneurysmal diameter, more direct inflow, and early chronological order of treatment.

CONCLUSION Several morphologic features of aneurysms were identified to help predict the immediate outcome of occlusion with GDCs. This study underscores the existence of a steep learning curve associated with GDC use in treating aneurysms and the importance of operator experience in achieving optimal therapeutic results." />
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      <h1 class="highwire-cite-title" id="page-title">Predictors of aneurysmal occlusion in the period immediately after endovascular treatment with detachable coils: a multivariate analysis.</h1>  
    	<div class="highwire-cite-authors"><span  class="highwire-citation-authors"><span class="highwire-citation-author first" data-delta="0">F Turjman</span>, <span class="highwire-citation-author" data-delta="1">T F Massoud</span>, <span class="highwire-citation-author" data-delta="2">J Sayre</span> and <span class="highwire-citation-author" data-delta="3">F Viñuela</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">October 1998,  </span><span  class="highwire-cite-metadata-volume highwire-cite-metadata">19 </span><span  class="highwire-cite-metadata-issue highwire-cite-metadata">(9) </span><span  class="highwire-cite-metadata-pages highwire-cite-metadata">1645-1651; </span></div>
  
  
  
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        	<div class="highwire-cite-metadata"><span  class="highwire-cite-metadata-volume highwire-cite-metadata">Vol. 19</span>, <span  class="highwire-cite-metadata-issue highwire-cite-metadata">Issue 9 </span><div  class="highwire-cite-metadata-pubdate highwire-cite-metadata">1 Oct 1998 </div></div>
      
      
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