{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,7,2]],"date-time":"2026-07-02T09:41:32Z","timestamp":1782985292053,"version":"3.54.5"},"reference-count":38,"publisher":"SAGE Publications","issue":"1","license":[{"start":{"date-parts":[[2023,9,15]],"date-time":"2023-09-15T00:00:00Z","timestamp":1694736000000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/journals.sagepub.com\/page\/policies\/text-and-data-mining-license"}],"content-domain":{"domain":["journals.sagepub.com"],"crossmark-restriction":true},"short-container-title":["Ultrasound"],"published-print":{"date-parts":[[2024,2]]},"abstract":"<jats:sec>\n                    <jats:title>Background:<\/jats:title>\n                    <jats:p>Intracranial atherosclerotic stenosis is a common cause of ischemic cerebrovascular events and is associated with a high risk of stroke recurrence. This study aimed to assess the diagnostic accuracy of transcranial color-coded duplex sonography for moderate-to-severe middle cerebral artery stenosis in stroke patients.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Methods:<\/jats:title>\n                    <jats:p>A retrospective analysis was carried out, including 31 patients aged \u2a7e18\u2009years hospitalized for ischemic cerebrovascular event in whom middle cerebral artery stenosis \u2a7e30% was identified on computed tomography angiography. Transcranial color-coded duplex sonography findings were compared to the degree of stenosis blindly identified on the computed tomography angiography used as the reference method.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Results:<\/jats:title>\n                    <jats:p>Overall, 27 patients had M1 stenosis and the other 4 had M2 stenosis. To detect M2 stenosis\u2009\u2a7e\u200950% and\u2009\u2a7e\u200970%, stenotic to pre-stenotic ratio\u2009\u2a7e\u20092 and\u2009\u2a7e\u20093 had a sensitivity of 100%, respectively. To detect M1 stenosis\u2009\u2a7e\u200970%, peak systolic velocity\u2009\u2a7e\u2009300\u2009cm\/s had a sensitivity of 53.8% and specificity of 85.7% with area under the receiver-operating characteristic curve of 0.753 (95% confidence interval: 0.568\u20130.938; p\u2009 =\u20090.026), and stenotic to pre-stenotic ratio\u2009\u2a7e\u20093 had a sensitivity of 84.6% and a specificity of 78.6% (area under the curve\u2009=\u20090.854; 95% confidence interval: 0.707\u20131; p\u2009 =\u20090.002). Middle cerebral artery\/anterior cerebral artery velocity ratio\u2009&lt;\u20090.7 had a sensitivity of 57.1% and specificity of 90% to detect dampened pre-stenotic flow in middle cerebral artery secondary to downstream M1 stenosis\u2009\u2a7e\u200970% (area under the curve\u2009=\u20090.800; 95% confidence interval: 0.584\u20131; p\u2009=\u20090.040).<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title\/>\n                    <jats:p>This study showed that stenotic to pre-stenotic ratio\u2009\u2a7e\u20093 was more sensitive than peak systolic velocity\u2009\u2a7e\u2009300\u2009cm\/s to screen M1 stenosis\u2009\u2a7e\u200970%. Middle cerebral artery\/anterior cerebral artery ratio\u2009&lt;\u20090.7 was a good indirect sign to detect dampened pre-stenotic flow due to M1 stenosis\u2009\u2a7e\u200970%.<\/jats:p>\n                  <\/jats:sec>","DOI":"10.1177\/1742271x231195723","type":"journal-article","created":{"date-parts":[[2023,9,15]],"date-time":"2023-09-15T13:57:29Z","timestamp":1694786249000},"page":"43-52","update-policy":"https:\/\/doi.org\/10.1177\/sage-journals-update-policy","source":"Crossref","is-referenced-by-count":2,"title":["Detection of moderate to severe middle cerebral artery atherosclerotic stenosis in stroke patients: Transcranial color-coded duplex sonography versus computed tomography angiography"],"prefix":"10.1177","volume":"32","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-8552-1774","authenticated-orcid":false,"given":"Moussa","family":"Toudou-Daouda","sequence":"first","affiliation":[{"name":"Department of Neurology, Centre Hospitalier Sud Francilien, Corbeil-Essonnes, 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