Hidehiro Takekawa1, Keisuke Suzuki2, Etsuo Takada3, Hideaki Tanaka2, Ryuta Okabe4, Masanari Yamamoto4, Yuko Ishii4, Madoka Okamura4, Koichi Hirata2. 1. Stroke Division, Department of Neurology, Dokkyo Medical University, 880 Kitakobayashi, Mibu, Shimotsuga, Tochigi, 321-0293, Japan. htakekawa-jscn@umin.ac.jp. 2. Department of Neurology, Dokkyo Medical University, Tochigi, Japan. 3. Center of Medical Ultrasonics, Dokkyo Medical University, Tochigi, Japan. 4. Stroke Division, Department of Neurology, Dokkyo Medical University, 880 Kitakobayashi, Mibu, Shimotsuga, Tochigi, 321-0293, Japan.
Abstract
PURPOSE: To apply the acceleration time (AcT) ratio as an additional marker for diagnosing internal carotid artery (ICA) stenosis. METHODS: Carotid artery sonography was performed in 140 patients, and the AcT ratio was calculated as the AcT of the ICA divided by the AcT of the ipsilateral common carotid artery, and compared with diameter stenosis. RESULTS: There was a significant correlation between diameter stenosis and the AcT ratio. The receiver operating characteristic curve revealed a cutoff level of 1.5, with 90.0 % sensitivity and 93.5 % specificity for stenosis >65 %. CONCLUSION: Our results indicate that applying the AcT ratio can help in the diagnosis of ICA stenosis.
PURPOSE: To apply the acceleration time (AcT) ratio as an additional marker for diagnosing internal carotid artery (ICA) stenosis. METHODS: Carotid artery sonography was performed in 140 patients, and the AcT ratio was calculated as the AcT of the ICA divided by the AcT of the ipsilateral common carotid artery, and compared with diameter stenosis. RESULTS: There was a significant correlation between diameter stenosis and the AcT ratio. The receiver operating characteristic curve revealed a cutoff level of 1.5, with 90.0 % sensitivity and 93.5 % specificity for stenosis >65 %. CONCLUSION: Our results indicate that applying the AcT ratio can help in the diagnosis of ICA stenosis.
Authors: C P Oates; A R Naylor; T Hartshorne; S M Charles; T Fail; K Humphries; M Aslam; P Khodabakhsh Journal: Eur J Vasc Endovasc Surg Date: 2008-11-29 Impact factor: 7.069
Authors: Alberto Cremonesi; Carlo Setacci; Angelo Bignamini; Leonardo Bolognese; Francesco Briganti; Germano Di Sciascio; Domenico Inzitari; Gaetano Lanza; Luciano Lupattelli; Salvatore Mangiafico; Carlo Pratesi; Bernard Reimers; Stefano Ricci; Gianmarco de Donato; Ugo Ugolotti; Augusto Zaninelli; Gian Franco Gensini Journal: Stroke Date: 2006-08-10 Impact factor: 7.914
Authors: H J Barnett; D W Taylor; M Eliasziw; A J Fox; G G Ferguson; R B Haynes; R N Rankin; G P Clagett; V C Hachinski; D L Sackett; K E Thorpe; H E Meldrum; J D Spence Journal: N Engl J Med Date: 1998-11-12 Impact factor: 91.245