Vertebral artery occlusion in duplex color-coded ultrasonography
Vertebral artery occlusion in duplex color-coded ultrasonography
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DOI：
10.1161/01.str.0000125857.63427.59
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发表时间：
2004-05-01
期刊：
影响因子：
8.3
通讯作者：
Naritomi, H
中科院分区：
文献类型：
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作者：
Saito, K;Kimura, K;Naritomi, H
背景和目的-建立诊断标准的网站闭塞的椎动脉（VAs）使用双功彩色编码ultrasonography.Methods -在128例连续患者进行常规脑血管造影，我们前瞻性地测量了直径，平均流速（MV），收缩期峰值流速，舒张末期流速的两个VA。确定直径比（对侧VA的直径除以目标VA的直径）和MV比（对侧VA的MV除以目标VA的MV）。根据血管造影结果，我们将VA分为4型（1）VA闭塞的起源（起源组：n = 9）;（2）在分支进入小脑后下动脉（PICA）之前VA闭塞（前组：n = 10）;（3A）分支至PICA后症状性VA闭塞（后组：n = 12）;（3B）分支入PICA后无症状或发育不良闭塞VA（4）VA无明显闭塞病变（对照组：n = 194）。收缩期峰值流速保持不变，但舒张末期流速为0 cm/s，表明为治疗前组。MV
Background and Purpose - To establish the diagnostic criteria for the site of occlusion in the vertebral arteries (VAs) using duplex color-coded ultrasonography.Methods - In 128 consecutive patients who underwent conventional cerebral angiography, we prospectively measured the diameter, mean flow velocity (MV), peak systolic flow velocity, and end-diastolic flow velocity of both VAs. The diameter-ratio (diameter of contralateral VA divided by that of target VA) and MV-ratio (MV of contralateral VA divided by that of target VA) were determined. Based on the angiographic findings, we classified the VAs into 4 types (5 groups) as follows: (1) the origin of VA occlusion (Origin group: n = 9); (2) VA occlusion before branching into the posterior inferior cerebellar artery (PICA) (Before group: n = 10); (3A) symptomatic VA occlusion after branching into the PICA (After group: n = 12); (3B) asymptomatic or hypoplastic occlusive VA after branching into the PICA (PICA end group: n = 15); and (4) no significant occlusive lesions in the VA (Control group: n = 194).Results - No flow signals in the VAs apparently indicated the Origin group. Preserved peak systolic flow velocity but end-diastolic flow velocity of zero cm/s indicated the Before group. MV