目的：比较经颅多普勒(Transcranial Doppler,TCD)和头部磁共振血管成像(Magnetic Resonance Angiography，MRA)检测大脑中动脉(Middle......

目的观察经颅多普勒（transcranial doppler,TCD）检测大脑中动脉狭窄或闭塞的可靠性,分析TCD在急性脑梗死（ACI）中的临床应用价值,以期探......