【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。更多还原

【Abstract】 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.更多还原