经颅二维彩色多普勒超声在大脑中动脉区急性脑梗死中的临床研究

目的：探讨经颅二维彩色多普勒超声（TCCS）在大脑中动脉区急性脑梗死中的临床应用价值。方法：86例大脑中动脉区急性脑梗死患者和82例正常成人，用TCCS检测双侧大脑中动脉（MCA）及大脑前动脉（ACA）收缩期峰值流速（SPV）、舒张末期血流速度（EDV）、搏动指数（PI）和阻力指数（RI）。结果：（1）大面积梗死组和腔隙性脑梗死组的MCA、ACA患侧血流速度明显低于正常对照组（P〈O．05），阻力指数、搏动指数明显高于正常对照组（P〈0．01）。（2）大面积梗死组舒张末期的比率≥1．7；而腔隙性梗死组和对照组的舒张末期的比率均〈1．7。结论：TCCS检查有助于大脑中动脉区急性脑梗死的诊断、临床治疗的选择。

Clinic Study of Transcranial Color Coded Real Time Sonography in Acute Infarction in Middle Cerebral Artery

Objective：To study the clinic value of TCCS in diagnosis and classification in acute cerebral infarction. Methods; Eighty-six inpatients suffering from cerebral infarction in the area of middle cerebral artery （MCA） and 82 healthy volunteers underwent the TCCS. The hemodynamic parameters of MCA and anterior cerebral artery （ACA）, including the peak flow velocity in systolic phase （Vs）,mean flow velocity （Vm）, flow velocity in end diastole （Vd）, pulsation index （PI）, and resistance index（RI） were detected by TCCS separately. Results： （1）There were significance in flow velocity （FV） in patients with large area cerebral infarction and lacunar infarction group in the injured side of MCA and ACA, and control group （P〈0. 05）. There were highly significant difference in RI and PI between patients and control group （P〈0.01）. （2）There was difference in the ratio of Vd between large area cerebral infarction group （≥ 1.7） and lacunar infarction group （〈1.7）. Conclusions ： TCCS can benefit to the differential diagnosis and the selection of treatment.