癫痫外科手术前需弄清语言的优势半球,用股动脉插管将异戊巴比妥注入脑动脉的Ｗａｄａ试验(ＷＴ)属创伤性检查。近来用功能性ＭＲＩ测量脑局部灌注的改变,虽然结果与ＷＴ结果密切相关,但语言作业中必然会产生运动伪差而影响结果。为此作者用功能性(双通道)ＴＣＤ(ｆＴＣＤ)来替 Before the epilepsy surgery need to understand the language of the dominant hemisphere, femoral artery catheterization of pentobarbital into the cerebral artery Wada test (WT) is a traumatic examination. Recently, functional MRI has been used to measure the changes of cerebral perfusion. Although the results are closely related to the results of WT, the movement artifacts will inevitably result in the language operation. For this reason the author uses a functional (dual channel) TCD (fTCD) instead