摘要
目的:用脑电图(EEG)脑电地形图(BEAM)对早期(3天内)腔隙性脑梗死(腔梗实施监测,观察其敏感性、变化特点以及对临床诊断的指导价值、方法:对65例早期腔梗的患者作EEG和BEAM监测,同期做计算机断层扫描(CT)或磁共振成像(MRI)对照,并设正常组对比分析。结果:腔梗组发病3天内阳性率分别为:EEG66%和BEAM89%(P<0.05),CT、MRI22%(P<0.001)。BEAM主要改变为局限性异常,多在颞额,中央区以 频带功率增高为主,部分病变侧颞区较对侧功率降低,a频带功率减弱。与CT比较,BEAM具有较高的敏感性。结论:BEAM检查早期腔梗优于CT,起到了指导临床诊断及时治疗的作用。
To investigate the sensitivities, the characteristics 1 and the clinical diagnotic values of brain electrical activity mapping(BEAM) and the electroencephalography (EEG) in patients with lacunar infarct (LI) in early stages(in three days after onset). methods: EEG, BEAM were performed in 65 petients with early LI, and computerized tomography(or) or the magnetic resonance imaging (MRI) were done simultaneously. Results: The positivity rate of BEAM, EEG and CT (or MRI) in LI group in three days after onset was 89%, 66%, 22% respectively. The main alterations on BEAM were local abnormalities, mostly located on temporofront and cental region, mainly showing the increase of 0 frequency band powers (the power of temporal region in focal side in a small number of patients) and the decrease Of a frequency band powers. Conclusions: EEG, BEAM might be more sensitive than CT in the detection of the early LI.It could guide the early clinical diagnosis and treatment.
关键词
腔隙性脑梗死
脑电图
脑电地形图
CT
MRI
lacunar infarct
Electroencephalography
Brain electrical activity mapping
Computerized tomography
Magnetic resonance imaging