颈总动脉形态及血流动力学改变与脑梗死类型的关系

目的研究颈总动脉形态及血流动力学改变与脑梗死类型的关系。方法应用经颅彩色双功能多普勒超声检查法．测定40例脑穿通支动脉梗死、31例脑主干支动脉校死和30例正常对照者的颈总动脉管径及有或无粥样斑块等反映血管形态和收缩峰速、每分钟血流量、阻力指数等血流动力学指标。结果结果表明当颈总动脉出现粥样斑块，而无明显血流动力学改变时，易发生穿通支脑梗死；随着血流动力学，尤其是血流收缩峰速度和阻力指数等指标的异常程度加重，发生脑主干动脉梗死的危险性增大。结论颈总动脉形态及血流动力学改变与患者发生脑梗死类型密切相关。

Relationship between cerebral infarction types and common carotid artery appearance and hemodynamics

Purpose To study the relationship between cerebral infarction types and common carotid artery appearance and hemodynamics. Methods Transcranial color-coded duplex sonography TCCD was performed in 30 nor-mal adults, 31 patients with cerebral arterial main trunks infarction and 40 ones with cerebral penetratlng artery infarction. This examination was used to determine the diameter of artery, peak systolic velocities, volume of blood fiow minute, resistancr indexs,atheromatous plaques in common carotid artery. Results Infarctions of cerebral penetratingartery of ten take when common carotid arteries have atheromatous plaques without hemodynamic changing. The riskof occlusion of cerebral arterial rnain tranks increased when peak systolic velovities and resistance indexs in heniody-namic have significant change. Conclusions It indicated that there is correlation between infarction t},l>es and c()mn1()ncarotid artery appearane and hemodynamics.