腔隙性脑梗塞患者45例显著性概率图

目的：探讨显著性概率图在腔隙性脑梗塞诊断中的意义。方法：４５例病人与对照组的定量脑电图的各频段间各个部位一一作Ｚ转换。结果：ＣＴ证实的３０例单发性腔隙性脑梗塞中，２２例显著性概率图为限局性异常，而ＥＥＧ仅５例异常（Ｐ＜０．０５），异常表现是慢波功率增高。２２例中１３例限局性异常部位与ＣＴ提示的病灶部位基本相符。结论：腔隙性脑梗塞患者进行显著性概率图的检查能够发现远隔部位的功能异常，其敏感性优于ＥＥＧ及脑电位分布图。

SIGNIFICANCE PROBABILITY MAPPING IN 45 PATIENTS WITH LACUNA INFACT

Objective:To find out the implications of significance probability mapping (SPM) in patients with lacuna infarct.Methods:QEEGs of 45 patients were compared with mean power of different fre-quency bands of the healthy control group by Z transform, Results:30 patients were with one focus of lacuna infarct and 15 patients multiple foci verified by CT scan. 30 patients were with one focus,and the focal abnormality was found by SPM in 22 cases,but only 5 cases by EEGs(P<0.05).Both general and focal abnormalities in the predominant findings were the increased power of slow frequency band.In 13 cases the focal abnormalities were basically in correspodence with the localization verified by CT scan,Conclusion:SPM could be helpful to discover the remote dysfunction of cortex,The sensitivity of SPM was better than the EEG and BEAM.