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本文102例接CT及MRI检查结果分成脑梗塞组73例、非脑梗塞组29例。后者的颅内动脉TCD测值与文献报道的国人同年龄组的正常值相近，而前者的颅内动脉血流速度多有增高，尤以收缩期及平均速度难高明显。以VsACA≥90cm／s，MCA＞100cm≥s、PCA≥90cm／s作为判断受检动脉有无狭窄的指标，脑梗塞组中50例的脑动脉Vs异常增高，非脑梗塞组中仅5例的MCAVs≥100cm／s。16例单侧脑腔梗中有11例同侧、双侧脑腔模10例中有5例单侧或双侧ACA或MCA及PCA的TCD上血流显示异常增高。单侧多发性脑梗塞15例中是2例的同侧ACA、MCA及PCA的Vs异常增高，29例双侧多发性脑梗塞中11例双侧、11例单侧颅内动脉血流TCD检出有异常。TCD对脑梗塞部位病变血管的检出阳性预期值为90．6％，特异度82．8％，与CT及MRI的诊断符合率为70．6％。
This article 102 cases connected CT and MRI examination results divided into cerebral infarction group 73 cases, non-cerebral infarction group 29 cases. The latter intracranial artery TCD measured values reported in the literature of the same age group with normal values similar to the former intracranial arterial blood flow velocity increased, especially in systolic and average velocity is not obvious. The VsACA≥90cm / s, MCA> 100cm≥s and PCA≥90cm / s were used as indexes to judge the stenosis of the arteries. In the cerebral infarction group, the abnormalities of Vs in 50 arteries were abnormally increased. Only 5 cases in the non-cerebral infarction group Of MCAVs ≧ 100 cm / s. In 16 cases of unilateral cerebral infarction in 11 cases of ipsilateral and bilateral intracavitary 10 cases, 5 cases of unilateral or bilateral ACA or MCA and PCA TCD showed abnormally increased blood flow. Unilateral multivessel infarction in 15 cases were 2 cases of ipsilateral ACA, MCA and PCA Vs abnormalities increased in 29 cases of bilateral multiple cerebral infarction in 11 cases bilateral, 11 cases of unilateral intracranial artery flow TCD Exceptions. The positive predictive value of TCD for vascular lesions in cerebral infarction was 90.6% and specificity was 82.8%, which was consistent with the diagnostic accuracy of CT and MRI in 70.6%.