过度换气对脑电压缩谱阵图的影响  

The influence of hyperventilation to compressed spectral array of brain electric action.

作　　者：黄远桂[1] 张燕[1] 蔡娟珍 

机构地区：[1]第四军医大学西京医院神经内科

出　　处：《临床脑电学杂志》1998年第1期25-28,共4页

摘　　要：目的：研究对过度换气（ＨＶ）对常规脑电图的压缩谱阵（ＣＳＡ）的影响。方法：对３０例正常人常规ＨＶ前、中、后各１ｍｉｎ的脑电图进行ＣＳＡ分析。结果：ＨＶ前枕区主频谱峰较额区为快，波幅较高。ＨＶ中谱阵主峰解体、增强、减弱或不变，整个主峰频率有左移倾向，年龄越小改变越明显。结论：ＣＳＡ能充分地实时显示常规ＨＶ前后脑电功率变化的特点。Objectives:To study the influence of hvperventilation(HV) to compressed spectral array(CSA) of routine electroencephalogram (EEG). Methods:One minute′s EEG was recorded before, during and after routine HV respectively in 30 normal persons, then was analyzed with CSA.　Results:(1)Before HV, the main frequency spectral peaks were faster in occipital region than in frontal region. And the amplitude was higher also.(2)During HV, CSA main peaks showed disintegration, enhancement, attenuation or no change. There were also some CSA main peaks unchanged. The whole main peaks frequency tcndcd to shift toward the left. These changes were more obvious in the younger persons. Conclusions:CSA can fully show the characterestics of power alterations in routine EEG and HV exam. Some new discoveries were obtained in our study.

关 键 词：压缩谱阵图 脑电描记术 过度换气 

分 类 号：R741.044[医药卫生—神经病学与精神病学]