alexa Validity of B-mode ultrasonographic findings in patients undergoing carotid endarterectomy in comparison with angiographic and clinicopathologic features.

Author(s): Kagawa R, Moritake K, Shima T, Okada Y

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Abstract BACKGROUND AND PURPOSE: Determining factors for performing carotid endarterectomy (CEA) are the severity of carotid stenosis and the presence of plaque ulcerations. Precise detection of these factors is important. The aim of this study was to assess the applicability of using B-mode ultrasonography for diagnosing carotid lesions in patients undergoing CEA. METHODS: B-mode examinations were performed on 64 Japanese patients (68 arteries) who subsequently underwent CEA. In each case, the appearance of plaque on B-mode was classified into one of two types: heterogeneous or homogeneous; plaque echogenicity was expressed as hypoechoic, isoechoic, or hyperechoic. Surface characteristics such as ulceration also were examined, and the degree of carotid artery stenosis was calculated. The B-mode findings were compared with angiographic and pathological features. RESULTS: B-mode accurately visualized macroscopic ulceration and surface irregularity in 93.8\% of the lesions examined, which was superior to angiography. Fifty-four lesions (79.4\%) were of the heterogeneous type and 14 lesions (20.6\%) were of the homogeneous type on B-mode. Microscopically, 57.4\% of the heterogeneous-type lesions demonstrated fibrous change. The frequency of calcification was higher in the heterogeneous lesions than in the homogeneous lesions. CONCLUSION: B-mode ultrasonography findings can provide information about macroscopic and microscopic characteristics of carotid lesions.
This article was published in Stroke and referenced in

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