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<meta name="DC.Title" content="Feasibility of Angiographic CT in Peri-Interventional Diagnostic Imaging: A Comparative Study with Multidetector CT" />
<meta name="DC.Identifier" content="10.3174/ajnr.A2086" />
<meta name="DC.Date" content="2010-08-01" />
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<meta name="DC.Description" content="BACKGROUND AND PURPOSE: The ability to perform neuroimaging on the angiography suite is important in making decisions during neurointerventions. Our aim was the evaluation of ACT as a fast available diagnostic tool during and after neuroendovascular procedures and the comparison of ACT with postinterventional MDCT.

MATERIALS AND METHODS: Eighty-four peri-interventional ACT acquisitions were obtained and evaluated: 38 after coil embolization of cerebral aneurysms, 16 after intracranial angioplasty with stent placement, and 30 after endovascular mechanical thrombectomy and lysis. Interventions and ACTs were performed on a biplane angiography system equipped with flat panel detectors. Postprocessing was performed on a dedicated workstation, and multiplanar reformations were generated. Reference studies were performed on a 16- or 128-section MDCT scanner. All studies were independently evaluated by 3 blinded neuroradiologists. The Wilcoxon test was applied for the statistical analysis.

RESULTS: ACT and MDCT images were of equal diagnostic quality in most cases related to the supratentorial ventricular system and the detection of hemorrhages (subarachnoidal, intraparenchymal, and intraventricular). Regarding the supratentorial ventricular system, an adequate diagnostic quality was assigned to 94% of the ACT acquisitions. For the detection of hemorrhage, no statistically significant difference was noted between ACT and MDCT. However, for the infratentorial region, ACT performed relatively poorly compared with MDCT. The diagnostic evaluation of gray matter (basal ganglia, insular cortex, and central cortex) by ACT is not sufficient, with &lt;20% of the acquisitions scoring a diagnostic value.

CONCLUSIONS: After neuroendovascular procedures and within the angiography suite, ACT enables an immediate detection of peri-interventional hemorrhage or hydrocephalus. However, for the detection of cerebral infarction, ACT is not yet reliable.

ACT
:   angiographic CT
CTDIw
:   weighted CT dose index
DSA
:   digital subtraction angiography
EVD
:   external ventricular drainage catheter
HU
:   Hounsfield unit
ICH
:   intracerebral hemorrhage
IPH
:   intraparenchymal hemorrhage
IVH
:   intraventricular hemorrhage
κw
:   weighted κ
MDCT
:   multidetector CT
MPR
:   multiplanar reformations
SAH
:   subarachnoidal hemorrhage
ST
:   section thickness" />
<meta name="DC.Contributor" content="M.-N. Psychogios" />
<meta name="DC.Contributor" content="J.-H. Buhk" />
<meta name="DC.Contributor" content="P. Schramm" />
<meta name="DC.Contributor" content="A. Xyda" />
<meta name="DC.Contributor" content="A. Mohr" />
<meta name="DC.Contributor" content="M. Knauth" />
<meta name="article:published_time" content="2010-08-01" />
<meta name="article:section" content="Interventional" />
<meta name="citation_title" content="Feasibility of Angiographic CT in Peri-Interventional Diagnostic Imaging: A Comparative Study with Multidetector CT" />
<meta name="citation_abstract" lang="en" content="&lt;h3&gt;BACKGROUND AND PURPOSE:&lt;/h3&gt;
&lt;p&gt;The ability to perform neuroimaging on the angiography suite is important in making decisions during neurointerventions. Our aim was the evaluation of ACT as a fast available diagnostic tool during and after neuroendovascular procedures and the comparison of ACT with postinterventional MDCT.&lt;/p&gt;&lt;h3&gt;MATERIALS AND METHODS: &lt;/h3&gt;
&lt;p&gt;Eighty-four peri-interventional ACT acquisitions were obtained and evaluated: 38 after coil embolization of cerebral aneurysms, 16 after intracranial angioplasty with stent placement, and 30 after endovascular mechanical thrombectomy and lysis. Interventions and ACTs were performed on a biplane angiography system equipped with flat panel detectors. Postprocessing was performed on a dedicated workstation, and multiplanar reformations were generated. Reference studies were performed on a 16- or 128-section MDCT scanner. All studies were independently evaluated by 3 blinded neuroradiologists. The Wilcoxon test was applied for the statistical analysis.&lt;/p&gt;&lt;h3&gt;RESULTS: &lt;/h3&gt;
&lt;p&gt;ACT and MDCT images were of equal diagnostic quality in most cases related to the supratentorial ventricular system and the detection of hemorrhages (subarachnoidal, intraparenchymal, and intraventricular). Regarding the supratentorial ventricular system, an adequate diagnostic quality was assigned to 94% of the ACT acquisitions. For the detection of hemorrhage, no statistically significant difference was noted between ACT and MDCT. However, for the infratentorial region, ACT performed relatively poorly compared with MDCT. The diagnostic evaluation of gray matter (basal ganglia, insular cortex, and central cortex) by ACT is not sufficient, with &amp;lt;20% of the acquisitions scoring a diagnostic value.&lt;/p&gt;&lt;h3&gt;CONCLUSIONS: &lt;/h3&gt;
&lt;p&gt;After neuroendovascular procedures and within the angiography suite, ACT enables an immediate detection of peri-interventional hemorrhage or hydrocephalus. However, for the detection of cerebral infarction, ACT is not yet reliable.&lt;/p&gt;" />
<meta name="citation_journal_title" content="American Journal of Neuroradiology" />
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<meta name="citation_section" content="Interventional" />
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<meta name="citation_author" content="M.-N. Psychogios" />
<meta name="citation_author" content="J.-H. Buhk" />
<meta name="citation_author" content="P. Schramm" />
<meta name="citation_author" content="A. Xyda" />
<meta name="citation_author" content="A. Mohr" />
<meta name="citation_author" content="M. Knauth" />
<meta name="twitter:title" content="Feasibility of Angiographic CT in Peri-Interventional Diagnostic Imaging: A Comparative Study with Multidetector CT" />
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<meta name="twitter:description" content="BACKGROUND AND PURPOSE: The ability to perform neuroimaging on the angiography suite is important in making decisions during neurointerventions. Our aim was the evaluation of ACT as a fast available diagnostic tool during and after neuroendovascular procedures and the comparison of ACT with postinterventional MDCT.

MATERIALS AND METHODS: Eighty-four peri-interventional ACT acquisitions were obtained and evaluated: 38 after coil embolization of cerebral aneurysms, 16 after intracranial angioplasty with stent placement, and 30 after endovascular mechanical thrombectomy and lysis. Interventions and ACTs were performed on a biplane angiography system equipped with flat panel detectors. Postprocessing was performed on a dedicated workstation, and multiplanar reformations were generated. Reference studies were performed on a 16- or 128-section MDCT scanner. All studies were independently evaluated by 3 blinded neuroradiologists. The Wilcoxon test was applied for the statistical analysis.

RESULTS: ACT and MDCT images were of equal diagnostic quality in most cases related to the supratentorial ventricular system and the detection of hemorrhages (subarachnoidal, intraparenchymal, and intraventricular). Regarding the supratentorial ventricular system, an adequate diagnostic quality was assigned to 94% of the ACT acquisitions. For the detection of hemorrhage, no statistically significant difference was noted between ACT and MDCT. However, for the infratentorial region, ACT performed relatively poorly compared with MDCT. The diagnostic evaluation of gray matter (basal ganglia, insular cortex, and central cortex) by ACT is not sufficient, with &lt;20% of the acquisitions scoring a diagnostic value.

CONCLUSIONS: After neuroendovascular procedures and within the angiography suite, ACT enables an immediate detection of peri-interventional hemorrhage or hydrocephalus. However, for the detection of cerebral infarction, ACT is not yet reliable.

ACT
:   angiographic CT
CTDIw
:   weighted CT dose index
DSA
:   digital subtraction angiography
EVD
:   external ventricular drainage catheter
HU
:   Hounsfield unit
ICH
:   intracerebral hemorrhage
IPH
:   intraparenchymal hemorrhage
IVH
:   intraventricular hemorrhage
κw
:   weighted κ
MDCT
:   multidetector CT
MPR
:   multiplanar reformations
SAH
:   subarachnoidal hemorrhage
ST
:   section thickness" />
<meta name="og-title" property="og:title" content="Feasibility of Angiographic CT in Peri-Interventional Diagnostic Imaging: A Comparative Study with Multidetector CT" />
<meta name="og-url" property="og:url" content="http://ajnr-stage2.stage.highwire.org/content/31/7/1226" />
<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: The ability to perform neuroimaging on the angiography suite is important in making decisions during neurointerventions. Our aim was the evaluation of ACT as a fast available diagnostic tool during and after neuroendovascular procedures and the comparison of ACT with postinterventional MDCT.

MATERIALS AND METHODS: Eighty-four peri-interventional ACT acquisitions were obtained and evaluated: 38 after coil embolization of cerebral aneurysms, 16 after intracranial angioplasty with stent placement, and 30 after endovascular mechanical thrombectomy and lysis. Interventions and ACTs were performed on a biplane angiography system equipped with flat panel detectors. Postprocessing was performed on a dedicated workstation, and multiplanar reformations were generated. Reference studies were performed on a 16- or 128-section MDCT scanner. All studies were independently evaluated by 3 blinded neuroradiologists. The Wilcoxon test was applied for the statistical analysis.

RESULTS: ACT and MDCT images were of equal diagnostic quality in most cases related to the supratentorial ventricular system and the detection of hemorrhages (subarachnoidal, intraparenchymal, and intraventricular). Regarding the supratentorial ventricular system, an adequate diagnostic quality was assigned to 94% of the ACT acquisitions. For the detection of hemorrhage, no statistically significant difference was noted between ACT and MDCT. However, for the infratentorial region, ACT performed relatively poorly compared with MDCT. The diagnostic evaluation of gray matter (basal ganglia, insular cortex, and central cortex) by ACT is not sufficient, with &lt;20% of the acquisitions scoring a diagnostic value.

CONCLUSIONS: After neuroendovascular procedures and within the angiography suite, ACT enables an immediate detection of peri-interventional hemorrhage or hydrocephalus. However, for the detection of cerebral infarction, ACT is not yet reliable.

ACT
:   angiographic CT
CTDIw
:   weighted CT dose index
DSA
:   digital subtraction angiography
EVD
:   external ventricular drainage catheter
HU
:   Hounsfield unit
ICH
:   intracerebral hemorrhage
IPH
:   intraparenchymal hemorrhage
IVH
:   intraventricular hemorrhage
κw
:   weighted κ
MDCT
:   multidetector CT
MPR
:   multiplanar reformations
SAH
:   subarachnoidal hemorrhage
ST
:   section thickness" />
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    	<div class="highwire-cite-authors"><span  class="highwire-citation-authors"><span class="highwire-citation-author first" data-delta="0">M.-N. Psychogios</span>, <span class="highwire-citation-author" data-delta="1">J.-H. Buhk</span>, <span class="highwire-citation-author" data-delta="2">P. Schramm</span>, <span class="highwire-citation-author" data-delta="3">A. Xyda</span>, <span class="highwire-citation-author" data-delta="4">A. Mohr</span> and <span class="highwire-citation-author" data-delta="5">M. Knauth</span></span></div>
  
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<div id="hw-article-author-popups-top-node-9765--61625929261" style="display: none;"><div class="author-tooltip-0"><div class="author-tooltip-name">M.-N. Psychogios </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=M.-N.%2BPsychogios%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=Psychogios%20M&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%3AM.-N.%2BPsychogios%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.-H. 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<p id="p-3"><strong>BACKGROUND AND PURPOSE:</strong> The ability to perform neuroimaging on the angiography suite is important in making decisions during neurointerventions. Our aim was the evaluation of ACT as a fast available diagnostic tool during and after neuroendovascular procedures and the comparison of ACT with postinterventional MDCT.</p>
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<p id="p-4"><strong>MATERIALS AND METHODS: </strong>Eighty-four peri-interventional ACT acquisitions were obtained and evaluated: 38 after coil embolization of cerebral aneurysms, 16 after intracranial angioplasty with stent placement, and 30 after endovascular mechanical thrombectomy and lysis. Interventions and ACTs were performed on a biplane angiography system equipped with flat panel detectors. Postprocessing was performed on a dedicated workstation, and multiplanar reformations were generated. Reference studies were performed on a 16- or 128-section MDCT scanner. All studies were independently evaluated by 3 blinded neuroradiologists. The Wilcoxon test was applied for the statistical analysis.</p>
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<p id="p-5"><strong>RESULTS: </strong>ACT and MDCT images were of equal diagnostic quality in most cases related to the supratentorial ventricular system and the detection of hemorrhages (subarachnoidal, intraparenchymal, and intraventricular). Regarding the supratentorial ventricular system, an adequate diagnostic quality was assigned to 94% of the ACT acquisitions. For the detection of hemorrhage, no statistically significant difference was noted between ACT and MDCT. However, for the infratentorial region, ACT performed relatively poorly compared with MDCT. The diagnostic evaluation of gray matter (basal ganglia, insular cortex, and central cortex) by ACT is not sufficient, with &lt;20% of the acquisitions scoring a diagnostic value.</p>
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<p id="p-6"><strong>CONCLUSIONS: </strong>After neuroendovascular procedures and within the angiography suite, ACT enables an immediate detection of peri-interventional hemorrhage or hydrocephalus. However, for the detection of cerebral infarction, ACT is not yet reliable.</p>
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</div><div class="section glossary" id="glossary-1"><h2>Abbreviations</h2><dl id="def-list-1"><dt id="def-item-1">ACT<span class="def-item-dt-sep"></span></dt><dd>angiographic CT<span class="def-item-dd-sep"></span></dd><dt id="def-item-2">CTDI<sub>w</sub><span class="def-item-dt-sep"></span></dt><dd>weighted CT dose index<span class="def-item-dd-sep"></span></dd><dt id="def-item-3">DSA<span class="def-item-dt-sep"></span></dt><dd>digital subtraction angiography<span class="def-item-dd-sep"></span></dd><dt id="def-item-4">EVD<span class="def-item-dt-sep"></span></dt><dd>external ventricular drainage catheter<span class="def-item-dd-sep"></span></dd><dt id="def-item-5">HU<span class="def-item-dt-sep"></span></dt><dd>Hounsfield unit<span class="def-item-dd-sep"></span></dd><dt id="def-item-6">ICH<span class="def-item-dt-sep"></span></dt><dd>intracerebral hemorrhage<span class="def-item-dd-sep"></span></dd><dt id="def-item-7">IPH<span class="def-item-dt-sep"></span></dt><dd>intraparenchymal hemorrhage<span class="def-item-dd-sep"></span></dd><dt id="def-item-8">IVH<span class="def-item-dt-sep"></span></dt><dd>intraventricular hemorrhage<span class="def-item-dd-sep"></span></dd><dt id="def-item-9">κ<sub>w</sub><span class="def-item-dt-sep"></span></dt><dd>weighted κ<span class="def-item-dd-sep"></span></dd><dt id="def-item-10">MDCT<span class="def-item-dt-sep"></span></dt><dd>multidetector CT<span class="def-item-dd-sep"></span></dd><dt id="def-item-11">MPR<span class="def-item-dt-sep"></span></dt><dd>multiplanar reformations<span class="def-item-dd-sep"></span></dd><dt id="def-item-12">SAH<span class="def-item-dt-sep"></span></dt><dd>subarachnoidal hemorrhage<span class="def-item-dd-sep"></span></dd><dt id="def-item-13">ST<span class="def-item-dt-sep"></span></dt><dd>section thickness</dd></dl></div><ul class="copyright-statement"><li class="fn" id="copyright-statement-1">Copyright © American Society 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/31/7/1226.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-title">Feasibility of Angiographic CT in Peri-Interventional Diagnostic Imaging: A Comparative Study with Multidetector CT</div>  
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      <div class="highwire-cite-title">Feasibility of Angiographic CT in Peri-Interventional Diagnostic Imaging: A Comparative Study with Multidetector CT</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">M.-N.</span> <span class="nlm-surname">Psychogios</span></span>, <span class="highwire-citation-author" data-delta="1"><span class="nlm-given-names">J.-H.</span> <span class="nlm-surname">Buhk</span></span>, <span class="highwire-citation-author" data-delta="2"><span class="nlm-given-names">P.</span> <span class="nlm-surname">Schramm</span></span>, <span class="highwire-citation-author" data-delta="3"><span class="nlm-given-names">A.</span> <span class="nlm-surname">Xyda</span></span>, <span class="highwire-citation-author" data-delta="4"><span class="nlm-given-names">A.</span> <span class="nlm-surname">Mohr</span></span>, <span class="highwire-citation-author" data-delta="5"><span class="nlm-given-names">M.</span> <span class="nlm-surname">Knauth</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">Aug 2010, </span><span  class="highwire-cite-metadata-volume highwire-cite-metadata">31 </span><span  class="highwire-cite-metadata-issue highwire-cite-metadata">(7) </span><span  class="highwire-cite-metadata-pages highwire-cite-metadata">1226-1231; </span><span  class="highwire-cite-metadata-doi highwire-cite-metadata"><span class="label">DOI:</span> 10.3174/ajnr.A2086 </span></div>
  
  
  
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