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采用脑电地形图（ＢＥＡＭ）对６３例脑血管病病人脑电活动进行了研究。一组正常人（ｎ＝３３）脑电地形图与之对比，做出显著概率差异地形图，当Ｚ值≥２．００时判为异常。结果表明：ＢＥＡＭ在发现脑血管病病人脑电活动异常及病灶定侧定位方面，较脑电图（ＥＥＧ）目测分析敏感准确；轻微脑缺血病人（ＴＩＡ、ＲＩＮＤ）ＢＥＡＭ的异常明显率高于ＣＴ；在ＢＥＡＭ各频域指标中，以δ、θ、δ＋θ／α＋β为佳；可作为脑血管病病人的病灶定侧定位的一项独立指标。
EEG activity was studied in 63 patients with cerebrovascular disease by electroencephalography (BEAM). In contrast, a group of normal subjects (n = 33) made a topographic map of significant differences in probability, with an abnormality when the Z value was ≥2.00. The results showed that BEAM was sensitive and accurate compared with EEG visual inspection in the detection of abnormal EEG activity and localization of lesions in patients with cerebrovascular disease. BEAM abnormalities in patients with mild cerebral ischemia (TIA, RIND) were significantly higher than BEAM CT; in the BEAM frequency domain indicators, δ, θ, δ + θ / α + β is better; can be used as a cerebrovascular disease in patients with locating side positioning an independent indicator.