脑梗塞患者的诱发电位、经颅多普勒与CT等对照研究

Analysis of cerebral evoked potentials, transcranial doppler and CT in patients with cerebral infarction

对８６例脑梗塞患者的脑诱发电位和经颅多普勒（ＴＣＤ）进行分析，并与ＣＴ／ＭＲＩ检查作对照，体感诱发电位（ＳｏｍａｔｏｓｅｎｓｏｒｙＥｖｏｋｅｄＰｏｔｅｎｔｉａｌ，ＳＥＰ）异常率８２．６％，脑干听觉诱发电位（ＢｒａｉｎｓｔｅｍＡｕｄｉｔｏｒｙＥｖｏｋｅｄＰｏｔｅｎｔｉａｌ，ＢＡＥＰ）异常率７４．４％经颅多普勒（ＴｒａｎｓｃｒａｎｉａｌＤｏｐｐｌｅｒ，ＴＣＤ）为９０．７％。脑梗塞位于大脑半球单侧者，患侧ＳＥＰ异常率高于健侧，且异常程度亦重于健侧。而ＢＡＥＰ无此特点。ＴＣＤ改变主要见于ＡＣＡ、ＭＣＡ及椎－基底动脉系统。脑梗塞病变部位及ＣＴ所示病灶大小与ＳＥＰ异常相关，而与ＢＡＥＰ和ＴＣＤ则无明显关系。

Somatosensory evoked potentials(SEP), brainstem auditory evoked potential (BAEP) and transcranial doppler (TCD) were recorded from 86 patients with cerebral infarction mainly located in basal ganglion, cerebral lobes or internal capsule due to CT and /or MRI verified and 120 controls. The total abnormal rate of SEP was 82.6% BAEP 74.4% and TCD 90.7%. Between affected side and nonaffected side , the rate and degree of SEP abnormality is affected side were severer than that in nonaffected side,but not in BAEP. The chang of TCD was seen both in MCA, ACA and verterbralbasal artery system. Combined with location and size of the lesion, it was related to SEP, but not to BAEP and TCD.