慢性脑供血不足患者的脑电图及SPECT显像分析

目的探讨脑电图、SPECT对慢性脑供血不足（CCCI）的诊断价值。方法对47例慢性脑供血不足患者行脑电图（EEG）检测,其中10例同时期行SPECT脑血流显像,分两年龄段观察脑电图的变化。结果脑电图正常11例,脑电图异常36例（76.60%）,其中边缘状态脑电图41例,占87.23%;轻度异常脑电图4例,占8.51%;中度异常2例;〈60岁组EEG的异常表现以泛化的慢α波为主,α活动减少、α波幅减低、调幅调节差。≥60岁组EEG改变无明显规律,出现了散在的或弥漫的θ波,同时可混有少量的δ波。两组患者均未见特异性EEG改变。10例行脑血流显像的患者SPECT结果均为阳性,表现为大脑实质广泛的血流灌注降低,以颞叶、额叶及顶叶血流降低最为明显。结论 SPECT脑血流显像能直接地评价脑组织学和功能改变;EEG对慢性脑供血不足患者的诊断还不具有特征性,但可在一定程度上反应脑缺血后脑细胞的功能改变,对慢性脑供血不足的诊疗有帮助。

Analysis of EEG and SPECT imaging in the patients with chronic cerebral circulation insufficiency

Objective To study the clinical diagnostic value of electroencephalogram(EEG) and SPECT on chronic cerebral circulation insufficiency. Methods EEG was examined in 47 patients with chronic cerebral circulation insufficiency,and SPECT was examined in 10 patients of 47 patients with chronic cerebral circulation insufficiency. The changes of EEG in different ages were observed. Results The normal EEG was noted in 11 cases,and 36 cases(76.60%) showed abnormal EEG. Among them,marginal EEG in 41 cases(87.23%) ,mil...