用B-flow技术诊断和表征颈内动脉闭塞前狭窄和闭塞情况。
Diagnostics and characterisation of preocclusive stenoses and occlusions of the internal carotid artery with B-flow.
作者信息
Jung E M, Kubale R, Ritter G, Gallegos M T, Jungius K-P, Rupp N, Clevert D-A
机构信息
Department of Diagnostic and Interventional Radiology, Klinikum Passau, Innstrasse 76, 94032 Passau, Germany.
出版信息
Eur Radiol. 2007 Feb;17(2):439-47. doi: 10.1007/s00330-006-0285-3. Epub 2006 May 16.
The purpose was to evaluate whether B-flow can improve the ultrasonographic diagnosis of preocclusive stenosis and occlusion of the internal carotid artery (ICA) compared with colour-coded Doppler and power Doppler. Ninety patients with occlusions or preocclusive stenoses of the ICA suspected by Doppler sonography were examined with B-flow in comparison with colour-coded Doppler sonography (CCDS), power Doppler (PD) and intra-arterial digital subtraction angiography (DSA). Intrastenotic flow detection and lengths of stenoses were the main criteria. Ulcerated plaques found by surgery in 42/90 patients were compared by ultrasonography (US). Diagnosis of ICA occlusion with CCDS, PD and B-flow was correct in all 42 cases. A preocclusive ICA stenosis in DSA was detected correctly in all 48/48 cases (100%) for B-flow, in 44/48 (92%) for PD and in 39/48 (81%) for CCDS. Surgical findings showed in 17/42 cases ulcerated plaques; 15/17 (89%) of these cases were detected with B-flow, 12/17 (71%) with PD, 10/17 (59%) with CCDS, and 8/17 (47%) with DSA. With B-flow the extent of stenosis was appraised more precisely than with PD and CCDS (P<0.0001). In conclusion, B-flow is a reliable method for preocclusive stenosis of the ICA with less intrastenotic flow artefacts. B-flow facilitates the characterization of plaque morphologies.
目的是评估与彩色编码多普勒和能量多普勒相比，B 流是否能改善颈内动脉（ICA）闭塞前狭窄和闭塞的超声诊断。对 90 例经多普勒超声怀疑有 ICA 闭塞或闭塞前狭窄的患者进行了 B 流检查，并与彩色编码多普勒超声（CCDS）、能量多普勒（PD）和动脉内数字减影血管造影（DSA）进行比较。狭窄内血流检测和狭窄长度是主要标准。对 42/90 例手术中发现的溃疡斑块进行超声检查（US）比较。CCDS、PD 和 B 流对 42 例 ICA 闭塞的诊断均正确。对于 B 流，48/48 例（100%）正确检测出 DSA 中的 ICA 闭塞前狭窄；PD 为 44/48 例（92%），CCDS 为 39/48 例（81%）。手术结果显示 17/42 例有溃疡斑块；其中 15/17 例（89%）用 B 流检测到，12/17 例（71%）用 PD 检测到，10/17 例（59%）用 CCDS 检测到，8/17 例（47%）用 DSA 检测到。与 PD 和 CCDS 相比，B 流能更精确地评估狭窄程度（P<0.0001）。总之，B 流是一种可靠的方法，用于诊断 ICA 闭塞前狭窄，狭窄内血流伪像较少。B 流有助于斑块形态的特征化。
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