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<meta name="DC.Title" content="Efficacy of Skull Plain Films in Follow-up Evaluation of Cerebral Aneurysms Treated with Detachable Coils: Quantitative Assessment of Coil Mass" />
<meta name="DC.Identifier" content="10.3174/ajnr.A4121" />
<meta name="DC.Date" content="2015-02-01" />
<meta name="DC.Publisher" content="American Journal of Neuroradiology" />
<meta name="DC.Rights" content="© 2015 by American Journal of Neuroradiology" />
<meta name="DC.AccessRights" content="restricted" />
<meta name="DC.Description" content="BACKGROUND AND PURPOSE: Skull plain films of coiled aneurysms have been used in a limited role, including morphologic comparison of the coil mass. We aimed to evaluate the efficacy of skull plain films in patients treated with detachable coils by using quantitative assessment.

MATERIALS AND METHODS: In this retrospective study, 78 pairs of the initial and follow-up skull anteroposterior and lateral images were reviewed independently by 2 neuroradiologists. The largest diameter, the perpendicular diameter, and area of the coil mass were measured separately on plain film, and quantitative changes of parameters were compared between subgroups, which were determined by consensus, depending on the need for retreatment. Subgroup analysis was also performed according to aneurysm size, packing attenuation, and ruptured status.

RESULTS: On skull lateral images, mean quantitative changes of the largest diameter (0.53 ± 0.43 mm versus 1.17 ± 0.91 mm, P &lt; .01), the perpendicular diameter (0.56 ± 0.48 mm versus 1.20 ± 1.05 mm, P &lt; .01), and the area of the coil mass (5.21 ± 7.51 mm2 versus 10.55 ± 10.93 mm2, P &lt; .02) differed significantly between subgroups. Receiver operating characteristic analysis showed quantitative change of the largest diameter (&gt;1.1 mm; sensitivity, 50.0%; specificity, 90.3%), the perpendicular diameter (&gt;.9 mm; sensitivity, 62.5%; specificity, 85.5%), and the area (&gt;8.5 mm2; sensitivity, 50.0%; specificity, 83.9%) on skull lateral films to be indicative of aneurysm recurrence, and the diagnostic accuracy of these parameters increased significantly in the high-packing-attenuation group.

CONCLUSIONS: Quantitative measurement of the coil mass by using skull plain lateral images has the potential to predict aneurysm recurrence in follow-up evaluations of intracranial aneurysms with coiling.

AAP
:   area on the anteroposterior view
ALat
:   area on the lateral view
AP
:   anteroposterior
LAP
:   largest diameter of coil mass on the anteroposterior view
LLat
:   largest diameter on the lateral view
PAP
:   diameter perpendicular to the LAP
PLat
:   diameter perpendicular to the LLat" />
<meta name="DC.Contributor" content="S.J. Ahn" />
<meta name="DC.Contributor" content="B.M. Kim" />
<meta name="DC.Contributor" content="W.S. Jung" />
<meta name="DC.Contributor" content="S.H. Suh" />
<meta name="article:published_time" content="2015-02-01" />
<meta name="article:section" content="Interventional" />
<meta name="citation_title" content="Efficacy of Skull Plain Films in Follow-up Evaluation of Cerebral Aneurysms Treated with Detachable Coils: Quantitative Assessment of Coil Mass" />
<meta name="citation_abstract" lang="en" content="&lt;h3&gt;BACKGROUND AND PURPOSE:&lt;/h3&gt;
&lt;p&gt;Skull plain films of coiled aneurysms have been used in a limited role, including morphologic comparison of the coil mass. We aimed to evaluate the efficacy of skull plain films in patients treated with detachable coils by using quantitative assessment.&lt;/p&gt;&lt;h3&gt;MATERIALS AND METHODS:&lt;/h3&gt;
&lt;p&gt;In this retrospective study, 78 pairs of the initial and follow-up skull anteroposterior and lateral images were reviewed independently by 2 neuroradiologists. The largest diameter, the perpendicular diameter, and area of the coil mass were measured separately on plain film, and quantitative changes of parameters were compared between subgroups, which were determined by consensus, depending on the need for retreatment. Subgroup analysis was also performed according to aneurysm size, packing attenuation, and ruptured status.&lt;/p&gt;&lt;h3&gt;RESULTS:&lt;/h3&gt;
&lt;p&gt;On skull lateral images, mean quantitative changes of the largest diameter (0.53 ± 0.43 mm versus 1.17 ± 0.91 mm, &lt;i&gt;P&lt;/i&gt; &amp;lt; .01), the perpendicular diameter (0.56 ± 0.48 mm versus 1.20 ± 1.05 mm, &lt;i&gt;P&lt;/i&gt; &amp;lt; .01), and the area of the coil mass (5.21 ± 7.51 mm&lt;sup&gt;2&lt;/sup&gt; versus 10.55 ± 10.93 mm&lt;sup&gt;2&lt;/sup&gt;, &lt;i&gt;P&lt;/i&gt; &amp;lt; .02) differed significantly between subgroups. Receiver operating characteristic analysis showed quantitative change of the largest diameter (&amp;gt;1.1 mm; sensitivity, 50.0%; specificity, 90.3%), the perpendicular diameter (&amp;gt;.9 mm; sensitivity, 62.5%; specificity, 85.5%), and the area (&amp;gt;8.5 mm&lt;sup&gt;2&lt;/sup&gt;; sensitivity, 50.0%; specificity, 83.9%) on skull lateral films to be indicative of aneurysm recurrence, and the diagnostic accuracy of these parameters increased significantly in the high-packing-attenuation group.&lt;/p&gt;&lt;h3&gt;CONCLUSIONS:&lt;/h3&gt;
&lt;p&gt;Quantitative measurement of the coil mass by using skull plain lateral images has the potential to predict aneurysm recurrence in follow-up evaluations of intracranial aneurysms with coiling.&lt;/p&gt;" />
<meta name="citation_journal_title" content="American Journal of Neuroradiology" />
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<meta name="citation_reference" content="citation_journal_title=Stroke;citation_journal_abbrev=Stroke;citation_title=Treatment of Intracranial Aneurysms by Embolization with Coils : A Systematic Review;citation_pages=470-476;citation_volume=30;citation_year=1999;citation_issue=2;citation_issn=0039-2499;citation_pmid=9933290;citation_doi=10.1161/01.STR.30.2.470" />
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<meta name="twitter:title" content="Efficacy of Skull Plain Films in Follow-up Evaluation of Cerebral Aneurysms Treated with Detachable Coils: Quantitative Assessment of Coil Mass" />
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<meta name="twitter:description" content="BACKGROUND AND PURPOSE: Skull plain films of coiled aneurysms have been used in a limited role, including morphologic comparison of the coil mass. We aimed to evaluate the efficacy of skull plain films in patients treated with detachable coils by using quantitative assessment.

MATERIALS AND METHODS: In this retrospective study, 78 pairs of the initial and follow-up skull anteroposterior and lateral images were reviewed independently by 2 neuroradiologists. The largest diameter, the perpendicular diameter, and area of the coil mass were measured separately on plain film, and quantitative changes of parameters were compared between subgroups, which were determined by consensus, depending on the need for retreatment. Subgroup analysis was also performed according to aneurysm size, packing attenuation, and ruptured status.

RESULTS: On skull lateral images, mean quantitative changes of the largest diameter (0.53 ± 0.43 mm versus 1.17 ± 0.91 mm, P &lt; .01), the perpendicular diameter (0.56 ± 0.48 mm versus 1.20 ± 1.05 mm, P &lt; .01), and the area of the coil mass (5.21 ± 7.51 mm2 versus 10.55 ± 10.93 mm2, P &lt; .02) differed significantly between subgroups. Receiver operating characteristic analysis showed quantitative change of the largest diameter (&gt;1.1 mm; sensitivity, 50.0%; specificity, 90.3%), the perpendicular diameter (&gt;.9 mm; sensitivity, 62.5%; specificity, 85.5%), and the area (&gt;8.5 mm2; sensitivity, 50.0%; specificity, 83.9%) on skull lateral films to be indicative of aneurysm recurrence, and the diagnostic accuracy of these parameters increased significantly in the high-packing-attenuation group.

CONCLUSIONS: Quantitative measurement of the coil mass by using skull plain lateral images has the potential to predict aneurysm recurrence in follow-up evaluations of intracranial aneurysms with coiling.

AAP
:   area on the anteroposterior view
ALat
:   area on the lateral view
AP
:   anteroposterior
LAP
:   largest diameter of coil mass on the anteroposterior view
LLat
:   largest diameter on the lateral view
PAP
:   diameter perpendicular to the LAP
PLat
:   diameter perpendicular to the LLat" />
<meta name="og-title" property="og:title" content="Efficacy of Skull Plain Films in Follow-up Evaluation of Cerebral Aneurysms Treated with Detachable Coils: Quantitative Assessment of Coil Mass" />
<meta name="og-url" property="og:url" content="http://ajnr-stage2.stage.highwire.org/content/36/2/337" />
<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: Skull plain films of coiled aneurysms have been used in a limited role, including morphologic comparison of the coil mass. We aimed to evaluate the efficacy of skull plain films in patients treated with detachable coils by using quantitative assessment.

MATERIALS AND METHODS: In this retrospective study, 78 pairs of the initial and follow-up skull anteroposterior and lateral images were reviewed independently by 2 neuroradiologists. The largest diameter, the perpendicular diameter, and area of the coil mass were measured separately on plain film, and quantitative changes of parameters were compared between subgroups, which were determined by consensus, depending on the need for retreatment. Subgroup analysis was also performed according to aneurysm size, packing attenuation, and ruptured status.

RESULTS: On skull lateral images, mean quantitative changes of the largest diameter (0.53 ± 0.43 mm versus 1.17 ± 0.91 mm, P &lt; .01), the perpendicular diameter (0.56 ± 0.48 mm versus 1.20 ± 1.05 mm, P &lt; .01), and the area of the coil mass (5.21 ± 7.51 mm2 versus 10.55 ± 10.93 mm2, P &lt; .02) differed significantly between subgroups. Receiver operating characteristic analysis showed quantitative change of the largest diameter (&gt;1.1 mm; sensitivity, 50.0%; specificity, 90.3%), the perpendicular diameter (&gt;.9 mm; sensitivity, 62.5%; specificity, 85.5%), and the area (&gt;8.5 mm2; sensitivity, 50.0%; specificity, 83.9%) on skull lateral films to be indicative of aneurysm recurrence, and the diagnostic accuracy of these parameters increased significantly in the high-packing-attenuation group.

CONCLUSIONS: Quantitative measurement of the coil mass by using skull plain lateral images has the potential to predict aneurysm recurrence in follow-up evaluations of intracranial aneurysms with coiling.

AAP
:   area on the anteroposterior view
ALat
:   area on the lateral view
AP
:   anteroposterior
LAP
:   largest diameter of coil mass on the anteroposterior view
LLat
:   largest diameter on the lateral view
PAP
:   diameter perpendicular to the LAP
PLat
:   diameter perpendicular to the LLat" />
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    <div class="highwire-article-citation highwire-citation-type-highwire-article node13989--5" data-node-nid="13989" id="top-node-13989--6571531754" data-pisa="ajnr;36/2/337" data-pisa-master="ajnr;ajnr.A4121" data-apath="/ajnr/36/2/337.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">
  
  
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      <h1 class="highwire-cite-title" id="page-title">Efficacy of Skull Plain Films in Follow-up Evaluation of Cerebral Aneurysms Treated with Detachable Coils: Quantitative Assessment of Coil Mass</h1>  
    	<div class="highwire-cite-authors"><span  class="highwire-citation-authors"><span class="highwire-citation-author first" data-delta="0">S.J. Ahn</span>, <span class="highwire-citation-author" data-delta="1">B.M. Kim</span>, <span class="highwire-citation-author" data-delta="2">W.S. Jung</span> and <span class="highwire-citation-author" data-delta="3">S.H. Suh</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 2015,  </span><span  class="highwire-cite-metadata-volume highwire-cite-metadata">36 </span><span  class="highwire-cite-metadata-issue highwire-cite-metadata">(2) </span><span  class="highwire-cite-metadata-pages highwire-cite-metadata">337-341; </span><span  class="highwire-cite-metadata-doi highwire-cite-metadata">DOI: https://doi.org/10.3174/ajnr.A4121 </span></div>
  
  
  
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<div id="hw-article-author-popups-top-node-13989--6571531754" style="display: none;"><div class="author-tooltip-0"><div class="author-tooltip-name">S.J. Ahn </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 Radiology (S.J.A., W.S.J., S.H.S.), Gangnam Severance Hospital</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.J.%2BAhn%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=Ahn%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 last"><a href="/search/author1%3AS.J.%2BAhn%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">B.M. Kim </div><div class="author-tooltip-affiliation"><span class="author-tooltip-text"><div class='author-affiliation'><span class='nlm-sup'>b</span>Department of Radiology (B.M.K.)</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=B.M.%2BKim%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=Kim%20B&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%3AB.M.%2BKim%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-2"><div class="author-tooltip-name">W.S. Jung </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 Radiology (S.J.A., W.S.J., S.H.S.), Gangnam Severance Hospital</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=W.S.%2BJung%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=Jung%20W&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%3AW.S.%2BJung%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">S.H. Suh </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 Radiology (S.J.A., W.S.J., S.H.S.), Gangnam Severance Hospital</div><div class='author-affiliation'><span class='nlm-sup'>c</span>Severance Institute of Vascular and Metabolic Research (S.H.S.), Yonsei University College of Medicine, Seoul, Korea.</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.H.%2BSuh%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=Suh%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 last"><a href="/search/author1%3AS.H.%2BSuh%2B" rel="nofollow" class="" data-icon-position="" data-hide-link-title="0">Search for this author on this site</a></li></ul></div></div></div>  </div>

  
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<p id="p-2"><strong>BACKGROUND AND PURPOSE:</strong> Skull plain films of coiled aneurysms have been used in a limited role, including morphologic comparison of the coil mass. We aimed to evaluate the efficacy of skull plain films in patients treated with detachable coils by using quantitative assessment.</p>
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<p id="p-3"><strong>MATERIALS AND METHODS:</strong> In this retrospective study, 78 pairs of the initial and follow-up skull anteroposterior and lateral images were reviewed independently by 2 neuroradiologists. The largest diameter, the perpendicular diameter, and area of the coil mass were measured separately on plain film, and quantitative changes of parameters were compared between subgroups, which were determined by consensus, depending on the need for retreatment. Subgroup analysis was also performed according to aneurysm size, packing attenuation, and ruptured status.</p>
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<p id="p-4"><strong>RESULTS:</strong> On skull lateral images, mean quantitative changes of the largest diameter (0.53 ± 0.43 mm versus 1.17 ± 0.91 mm, <em>P</em> &lt; .01), the perpendicular diameter (0.56 ± 0.48 mm versus 1.20 ± 1.05 mm, <em>P</em> &lt; .01), and the area of the coil mass (5.21 ± 7.51 mm<sup>2</sup> versus 10.55 ± 10.93 mm<sup>2</sup>, <em>P</em> &lt; .02) differed significantly between subgroups. Receiver operating characteristic analysis showed quantitative change of the largest diameter (&gt;1.1 mm; sensitivity, 50.0%; specificity, 90.3%), the perpendicular diameter (&gt;.9 mm; sensitivity, 62.5%; specificity, 85.5%), and the area (&gt;8.5 mm<sup>2</sup>; sensitivity, 50.0%; specificity, 83.9%) on skull lateral films to be indicative of aneurysm recurrence, and the diagnostic accuracy of these parameters increased significantly in the high-packing-attenuation group.</p>
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<p id="p-5"><strong>CONCLUSIONS:</strong> Quantitative measurement of the coil mass by using skull plain lateral images has the potential to predict aneurysm recurrence in follow-up evaluations of intracranial aneurysms with coiling.</p>
</div></div><div class="section glossary" id="glossary-1">
<h2 class="">ABBREVIATIONS:</h2>
<dl id="def-list-1"><dt id="def-item-1">A<sub>AP</sub><span class="def-item-dt-sep"></span></dt><dd>area on the anteroposterior view<span class="def-item-dd-sep"></span></dd><dt id="def-item-2">A<sub>Lat</sub><span class="def-item-dt-sep"></span></dt><dd>area on the lateral view<span class="def-item-dd-sep"></span></dd><dt id="def-item-3">AP<span class="def-item-dt-sep"></span></dt><dd>anteroposterior<span class="def-item-dd-sep"></span></dd><dt id="def-item-4">L<sub>AP</sub><span class="def-item-dt-sep"></span></dt><dd>largest diameter of coil mass on the anteroposterior view<span class="def-item-dd-sep"></span></dd><dt id="def-item-5">L<sub>Lat</sub><span class="def-item-dt-sep"></span></dt><dd>largest diameter on the lateral view<span class="def-item-dd-sep"></span></dd><dt id="def-item-6">P<sub>AP</sub><span class="def-item-dt-sep"></span></dt><dd>diameter perpendicular to the L<sub>AP</sub><span class="def-item-dd-sep"></span></dd><dt id="def-item-7">P<sub>Lat</sub><span class="def-item-dt-sep"></span></dt><dd>diameter perpendicular to the L<sub>Lat</sub></dd></dl></div><ul class="copyright-statement"><li class="fn" id="copyright-statement-1">© 2015 by American Journal of Neuroradiology</li></ul><span class="highwire-journal-article-marker-end"></span></div><span class="related-urls"></span></div><a href="http://ajnr-stage2.stage.highwire.org/content/36/2/337.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-metadata"><span  class="highwire-cite-metadata-volume highwire-cite-metadata">Vol. 36</span>, <span  class="highwire-cite-metadata-issue highwire-cite-metadata">Issue 2 </span><div  class="highwire-cite-metadata-pubdate highwire-cite-metadata">1 Feb 2015 </div></div>
      
      
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