【摘要】 目的观察经颅多普勒超声(TCD)和脑血管造影(DSA)对中青年缺血性脑血管病诊断的差异性。方法收集100例中青年缺血性脑血管病患者,均行TCD和DSA检查。结果共检查血管1826条,以DSA为标准,TCD诊断血管狭窄的敏感度是85.8%,特异度是96.9%,假阳性是8.0%,假阴性是3.1%。结论 TCD对诊断颅内外血管狭窄具有较高的特异性和敏感性,对中青年缺血性脑血管病的临床筛选和早期诊断具有较高的临床价值。更多还原

【Abstract】 Objective To evaluate the transcranial Doppler(TCD) for the Examination of cerebral infarction in middle-aged and youth with the use of digital subtraction angiography(DSA).Methods One hundred patients were collected and examined by TCD and DSA.Results One thousand eight hundred and twenty six cerebral vessels were examined.On the standard of DSA,the sensitivity of the transcranial Doppler(TCD) examination for arterial stenosis was 85.8%,the specificity was 96.9%,false-positive was 8.0%,false-negative was 3.1%.Conclusion For the diagnosis of arterial stenosis in intracranial vessels and extracranial vessels,the specificity and sensitivity of TCD would be relatively reliable,it is valuable for the clinical screening and the earlier diagnosis of cerebral infarction in middle-aged and youth.更多还原