经颅多普勒超声检测大脑中动脉主干严重狭窄或梗阻性病变的准确性

被引：13

作者：

龚涛

王冬青

陈海波

机构：

[1] 卫生部北京医院神经内科,辽宁省盘锦市第二人民医院神经内科,卫生部北京医院神经内科北京,,北京

来源：

中国医学影像学杂志 | 2005年 / 04期

关键词：

经颅多普勒超声; 大脑中动脉; 狭窄; 梗阻; 缺血性脑卒中; MRA;

D O I：

暂无

中图分类号：

R445.1 [超声波诊断];

学科分类号：

100207 ;

摘要：

目的:评价经颅多普勒超声(TCD)检测大脑中动脉(MCA)主干严重狭窄或梗阻性病变的准确性。材料和方法:对47例患MCA区脑梗死的患者进行TCD及磁共振血管造影(MRA)检查,以MRA为金标准,以收缩峰值血流速度(PSV)作为动脉狭窄的诊断参数,利用四格表法,分析TCD检测上述病变的准确性。结果:TCD对MCA中度、重度狭窄及梗阻性病变检出的敏感性、特异性、准确性、阳性预期值及阴性预期值分别为85.3%、92.3%、87.2%、96.7%、70.6%;91.7%、91.3%、91.5%、91.7%、91.3%;62.5%、100%、93.6%、100%、92.9%。与MRA完全相符率为80.9%(3847)。结论:在诊断MCA严重狭窄或梗阻性病变时,TCD与MRA有较好的一致性。

引用

页码：262 / 264

页数：3

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