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Japanese

Localization of Central Sulcus by means of Cortical SEP Recordings—Clinical feasibility and usefulness of intraoperative electrophysiological monitoring Tetsuji SEKIYA 1 , Toru HATAYAMA 1 , Takashi IWABUCHI 1 1Department of Neurosurgery, Hirosaki University Medical School Keyword: Central sulcus , Intraoperative monitoring , Somatosensory evoked Potentials pp.19-27
Published Date 1993/1/10
DOI https://doi.org/10.11477/mf.1436900582
  • Abstract
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Clinical feasibility and usefulness of various intraop-erative electrophysiological monitoring methods that are widely utilized during neurosurgical operations were critically evaluated.

We divided these intraoperative monitoring methods (IOM) into two types; the monitoring methods that en-able the surgeons to obtain topographical orientation during operative procedures ('topographical IOM') and those that give them knowledge of the functional state of the nervous system that is involved in the operative procedures ('functional IOM').

It was shown why 'topographical TOM' is reliable and useful, based on our experiences of cortical SEP re-cordings to localize the central sulcus, and why the pre-sent 'functional IOM' is less reliable to guide the surgeons precisely during the operations. We presented some technical methods to cope with these problems in 'functional IOM'.

It is necessary to establish a good correlation between the intraoperative changes of the evoked potentials and the pathological changes responsible for these electrical changes as established in clinical electrocardiography.


Copyright © 1993, 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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