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EEG Topographic Changes of Brain Abscesses in Children Hirotsune KAWAMURA 1 , Yoshihiro UMEZAWA 1 , Keiichi AMANO 1 , Tatsuya TANIKAWA 1 , Hiroko KAWABATAKE 1 , Yukiya IWATA 1 , Takaomi TAIRA 1 , Koichi KITAMURA 1 1Department of Neurosurgery,Neurological Institute, Tokyo Women's Medical College Keyword: Brain abscess , EEG Topography , Slow wave focus pp.381-387
Published Date 1987/4/10
DOI https://doi.org/10.11477/mf.1436202390
  • Abstract
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EEG topography was investigated before and after surgical treatment in 4 patients with brain abscess aged from 5 to 13 years.

According to the recording technique designed by Matsuoka and Ueno, the recorded EEG for each 5 seconds was analyzed to obtain squre roots of power spectra for each band of delta (2 - 3.8 Hz), theta (4 -7.8 Hz) and alpha (8 - 12.8 Hz) which were then addedfor the 60-seconds duration of each trial. After that, numerical matrics presenting the topographic distribu-tion of spectral energy of each band were constructed and displayed as color images.


Copyright © 1987, Igaku-Shoin Ltd. All rights reserved.

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電子版ISSN 1882-1251 印刷版ISSN 0301-2603 医学書院

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