Lia C, Carenini L, Degioz C, Bottachi E
U.O. di Neurologia e Neurofisiopatologia, Ospedale Regionale di Aosta, Italy.
Ital J Neurol Sci. 1995 May;16(4):249-54. doi: 10.1007/BF02282996.
Computerized analysis and topographical mapping were performed on the EEGs of 28 migraine patients (17 without and 11 with typical aura) and an age and sex-matched control group of 28 subjects. Traditional visual EEG analysis revealed only a slight diffuse slowing of theta band in eight patients (28.6%), and computerized analysis revealed significant changes in eleven (39.3%). The most frequently altered parameters were an increase in the relative power of the slow bands and/or a decrease in that of alpha band. These variations appeared to be particularly significant in the posterior regions. No significant inter-hemisphere asymmetry was revealed. Comparisons between the patient and control groups showed that the only statistically significant difference was a bilateral increase in theta power in the parieto-occipital regions of the patients. We conclude that the role of topographical EEG mapping in the clinical diagnosis of migraine is still limited.
对28名偏头痛患者（17名无典型先兆，11名有典型先兆）以及28名年龄和性别匹配的对照组受试者的脑电图进行了计算机分析和地形图绘制。传统的脑电图视觉分析显示，仅8名患者（28.6%）出现轻微的弥漫性θ波段减慢，而计算机分析显示11名患者（39.3%）有显著变化。最常改变的参数是慢波段相对功率增加和/或α波段相对功率降低。这些变化在后部区域似乎尤为显著。未发现半球间有显著不对称性。患者组与对照组的比较表明，唯一具有统计学意义的差异是患者顶枕区双侧θ功率增加。我们得出结论，脑电图地形图在偏头痛临床诊断中的作用仍然有限。
