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  

The Accuracy of TCD in the Detection of Serious Stenosis or Occlusion of the Middle Cerebral Artery

作　　者：龚涛[1] 王冬青 陈海波[1] 

机构地区：[1]卫生部北京医院神经内科,北京100730 [2]辽宁省盘锦市第二人民医院神经内科,124000

出　　处：《中国医学影像学杂志》2005年第4期262-264,共3页Chinese Journal of Medical Imaging

基　　金：首都医学发展科研基金-北京医学卫生科技重点支持项目(项目编号:2002-2022)

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。Purpose: To evaluate the accuracy of TCD in exploring the serious stenosis or occlusion of MCA. Materials and Methods: 47 patients with cerebral infarction in MCA territory underwent TCD and MRA. The peak systolic velocity(PSV) was taken as the TCD diagnostic parameter of arterial stenosis. Results: The sensitivity, specificity, accuracy, PPV and NPV of TCD in moderate, severe stenosis and occlusion of MCA were 85.3%, 92.3%, 87.2%, 96.7%, 70.6%;91.7%, 91.3%, 91.5%, 91.7%, 91.3%;and 62.5%、100%、93.6%、100%、92.9% respectively. The corresponding rate between TCD and MRA was 80.9%(38/47). Conclusion: The TCD correlated well with MRA in diagnosing serious stenotic or occlusive lesions of MCA.

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 

分 类 号：R445.1[医药卫生—影像医学与核医学]