目的通过TCD与DSA对50例颅内缺血性脑血管病检查结果的对照研究,探讨TCD对颅内缺血性脑血管病的诊断价值。方法应用TCD仪检出颅内动脉狭窄或闭塞的患者,再行DSA检查,分析两种检查结果对诊断缺血性脑血管病的一致性和差异性。结果TCD对颅内动脉狭窄或闭塞的检出率与DSA的检出率明显相关。结论通过TCD与DSA比较,极大提高了TCD对颅内缺血性病变检测的准确性,TCD检查是一种无创且行之有效的方法,可用于DSA检查前的筛选。 Objective To compare the results of TCD and DSA in examining 50 cases of intracranial ischemic cerebrovascular disease and explore the diagnostic value of TCD in cerebral ischemic cerebrovascular disease. Methods TCD was used to detect patients with intracranial arterial stenosis or occlusion. DSA was performed to analyze the consistency and difference between the two results in diagnosis of ischemic cerebrovascular disease. Results TCD detection of intracranial artery stenosis or occlusion was significantly associated with the detection rate of DSA. Conclusions The accuracy of TCD in detecting intracranial ischemic lesions is greatly improved by TCD compared with DSA. TCD is a noninvasive and effective method, which can be used for pre-DSA screening.