Relationship between CT angiography-derived collateral status and CT perfusion-derived tissue viability

Relationship between CT angiography-derived collateral status and CT perfusion-derived tissue viability

To explore the relationship between computed tomography (CT) angiography (CTA)-derived collateral status and CT perfusion (CTP)-derived tissue viability. Patients having middle cerebral artery (MCA) M1/M2 segment and/or internal carotid artery (ICA) occlusion and within 12 hours of onset were includ...

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Veröffentlicht in:Clinical radiology 2019-12, Vol.74 (12), p.956-961
Hauptverfasser: Xia, Q., Wang, X., Zhang, Z., Fang, Q., Hu, C.
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container_title Clinical radiology
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creator Xia, Q.
Wang, X.
Zhang, Z.
Fang, Q.
Hu, C.
description To explore the relationship between computed tomography (CT) angiography (CTA)-derived collateral status and CT perfusion (CTP)-derived tissue viability. Patients having middle cerebral artery (MCA) M1/M2 segment and/or internal carotid artery (ICA) occlusion and within 12 hours of onset were included. Collateral was graded from 0 to 3 on maximum intensity projection (MIP) images of CTA. The area with relative cerebral blood flow (rCBF) 10 or >12 or >14 seconds was defined as the infarct core, and Tmax >6 seconds as the penumbra. Kruskal–Wallis and Spearman's correlation tests were performed to assess the correlation between collateral grade and infarct size or mismatch ratio. Eighty-three patients were enrolled and 52 of them met the inclusion criteria. Infarct size defined by rCBF 10 or >12 or >14 seconds and mismatch ratios were significantly different among the four groups. The correlation between collateral grades and infarct core using rCBF 12s or >14s. Mismatch ratio for the infarct core defined by rCBF
doi_str_mv 10.1016/j.crad.2019.07.024
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Patients having middle cerebral artery (MCA) M1/M2 segment and/or internal carotid artery (ICA) occlusion and within 12 hours of onset were included. Collateral was graded from 0 to 3 on maximum intensity projection (MIP) images of CTA. The area with relative cerebral blood flow (rCBF) <30% or time-to-maximum (Tmax) >10 or >12 or >14 seconds was defined as the infarct core, and Tmax >6 seconds as the penumbra. Kruskal–Wallis and Spearman's correlation tests were performed to assess the correlation between collateral grade and infarct size or mismatch ratio. Eighty-three patients were enrolled and 52 of them met the inclusion criteria. Infarct size defined by rCBF <30% or Tmax >10 or >12 or >14 seconds and mismatch ratios were significantly different among the four groups. The correlation between collateral grades and infarct core using rCBF <30% (ρ=–0.814, p<0.01) was better than that defined by Tmax >10s, >12s or >14s. Mismatch ratio for the infarct core defined by rCBF <30% (ρ=0.945, p<0.01) had the best correlation with collateral grades. Patients with good collaterals show a smaller infarct core and higher mismatch ratio. Infarct size defined by rCBF <30% and mismatch ratio defined by rCBF <30% and Tmax >6 seconds appear to be more correlated with collaterals in AIS patients. •There is a quite good correlation between CTA collateral grades and CTP results.•The mismatch defined with Tmax>6s and rCBF<30% best correlates with CTA collaterals.•There is no significant correlation between onset time and mismatch ratio.]]></description><identifier>ISSN: 0009-9260</identifier><identifier>EISSN: 1365-229X</identifier><identifier>DOI: 10.1016/j.crad.2019.07.024</identifier><identifier>PMID: 31495547</identifier><language>eng</language><publisher>England: Elsevier Ltd</publisher><ispartof>Clinical radiology, 2019-12, Vol.74 (12), p.956-961</ispartof><rights>2019 The Royal College of Radiologists</rights><rights>Copyright © 2019 The Royal College of Radiologists. Published by Elsevier Ltd. 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Patients having middle cerebral artery (MCA) M1/M2 segment and/or internal carotid artery (ICA) occlusion and within 12 hours of onset were included. Collateral was graded from 0 to 3 on maximum intensity projection (MIP) images of CTA. The area with relative cerebral blood flow (rCBF) <30% or time-to-maximum (Tmax) >10 or >12 or >14 seconds was defined as the infarct core, and Tmax >6 seconds as the penumbra. Kruskal–Wallis and Spearman's correlation tests were performed to assess the correlation between collateral grade and infarct size or mismatch ratio. Eighty-three patients were enrolled and 52 of them met the inclusion criteria. Infarct size defined by rCBF <30% or Tmax >10 or >12 or >14 seconds and mismatch ratios were significantly different among the four groups. The correlation between collateral grades and infarct core using rCBF <30% (ρ=–0.814, p<0.01) was better than that defined by Tmax >10s, >12s or >14s. Mismatch ratio for the infarct core defined by rCBF <30% (ρ=0.945, p<0.01) had the best correlation with collateral grades. Patients with good collaterals show a smaller infarct core and higher mismatch ratio. Infarct size defined by rCBF <30% and mismatch ratio defined by rCBF <30% and Tmax >6 seconds appear to be more correlated with collaterals in AIS patients. •There is a quite good correlation between CTA collateral grades and CTP results.•The mismatch defined with Tmax>6s and rCBF<30% best correlates with CTA collaterals.•There is no significant correlation between onset time and mismatch ratio.]]></description><issn>0009-9260</issn><issn>1365-229X</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2019</creationdate><recordtype>article</recordtype><recordid>eNp9kMtKxDAUhoMoOl5ewIV06aY1lyZtwY0M3kAQRMFdyCQnY4ZOW5N0ZN7elFGXrg4Hvv_nnA-hc4ILgom4WhXaK1NQTJoCVwWm5R6aESZ4Tmnzvo9mGOMmb6jAR-g4hNW0lrQ8REeMlA3nZTVDyxdoVXR9Fz7ckC0gfgF02fw1U93S9Uuvho9tbsC7DZhM922Cwas2C1HFMSTKTPAA3o4htfyh0YUwQrZxauFaF7en6MCqNsDZzzxBb3e3r_OH_On5_nF-85RrxkXMreaYlQ00wooKasEwI8CE0rxR2BprlBJ1Vdu6tlwYXdOaYZ7-Z4JVmBjNTtDlrnfw_ecIIcq1CxrS3R30Y5CU1hWnJat4QukO1b4PwYOVg3dr5beSYDkJlis5CZaTYIkrmQSn0MVP_7hYg_mL_BpNwPUOgPTlxoGXQTvoNBjnQUdpevdf_ze3442k</recordid><startdate>201912</startdate><enddate>201912</enddate><creator>Xia, Q.</creator><creator>Wang, X.</creator><creator>Zhang, Z.</creator><creator>Fang, Q.</creator><creator>Hu, C.</creator><general>Elsevier Ltd</general><scope>NPM</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7X8</scope></search><sort><creationdate>201912</creationdate><title>Relationship between CT angiography-derived collateral status and CT perfusion-derived tissue viability</title><author>Xia, Q. ; Wang, X. ; Zhang, Z. ; Fang, Q. ; Hu, C.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c356t-fc50349e96f67e863031e36ac59a0fdfdaa6878f88f56dc828305019363701dc3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2019</creationdate><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Xia, Q.</creatorcontrib><creatorcontrib>Wang, X.</creatorcontrib><creatorcontrib>Zhang, Z.</creatorcontrib><creatorcontrib>Fang, Q.</creatorcontrib><creatorcontrib>Hu, C.</creatorcontrib><collection>PubMed</collection><collection>CrossRef</collection><collection>MEDLINE - Academic</collection><jtitle>Clinical radiology</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Xia, Q.</au><au>Wang, X.</au><au>Zhang, Z.</au><au>Fang, Q.</au><au>Hu, C.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Relationship between CT angiography-derived collateral status and CT perfusion-derived tissue viability</atitle><jtitle>Clinical radiology</jtitle><addtitle>Clin Radiol</addtitle><date>2019-12</date><risdate>2019</risdate><volume>74</volume><issue>12</issue><spage>956</spage><epage>961</epage><pages>956-961</pages><issn>0009-9260</issn><eissn>1365-229X</eissn><abstract><![CDATA[To explore the relationship between computed tomography (CT) angiography (CTA)-derived collateral status and CT perfusion (CTP)-derived tissue viability. Patients having middle cerebral artery (MCA) M1/M2 segment and/or internal carotid artery (ICA) occlusion and within 12 hours of onset were included. Collateral was graded from 0 to 3 on maximum intensity projection (MIP) images of CTA. The area with relative cerebral blood flow (rCBF) <30% or time-to-maximum (Tmax) >10 or >12 or >14 seconds was defined as the infarct core, and Tmax >6 seconds as the penumbra. Kruskal–Wallis and Spearman's correlation tests were performed to assess the correlation between collateral grade and infarct size or mismatch ratio. Eighty-three patients were enrolled and 52 of them met the inclusion criteria. Infarct size defined by rCBF <30% or Tmax >10 or >12 or >14 seconds and mismatch ratios were significantly different among the four groups. The correlation between collateral grades and infarct core using rCBF <30% (ρ=–0.814, p<0.01) was better than that defined by Tmax >10s, >12s or >14s. Mismatch ratio for the infarct core defined by rCBF <30% (ρ=0.945, p<0.01) had the best correlation with collateral grades. Patients with good collaterals show a smaller infarct core and higher mismatch ratio. Infarct size defined by rCBF <30% and mismatch ratio defined by rCBF <30% and Tmax >6 seconds appear to be more correlated with collaterals in AIS patients. •There is a quite good correlation between CTA collateral grades and CTP results.•The mismatch defined with Tmax>6s and rCBF<30% best correlates with CTA collaterals.•There is no significant correlation between onset time and mismatch ratio.]]></abstract><cop>England</cop><pub>Elsevier Ltd</pub><pmid>31495547</pmid><doi>10.1016/j.crad.2019.07.024</doi><tpages>6</tpages></addata></record>
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