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Clinical Features and Significance of Negative Motor Response in Intraoperative Language Mapping during Awake Craniotomy Ken-ichi NAGAMATSU 1 , Toshihiro KUMABE 1 , Kyoko SUZUKI 2 , Nobukazu NAKASATO 3 , Kiyotaka SATO 4 , Osamu IIZUKA 5 , Masayuki KANAMORI 1 , Yukihiko SONODA 1 , Teiji TOMINAGA 1 1Department of Neurosurgery, Tohoku University Graduate School of Medicine 2Department of Clinical Neuroscience, Yamagata University Graduate School of Medicine 3Department of Neurosurgery, Kohnan Hospital 4Department of Neuroanesthesiology, Kohnan Hospital 5Department of Behavioral Neurology and Cognitive Neuroscience, Tohoku University School of Medicine Keyword: awake craniotomy , intraoperative functional brain mapping , language area , negative motor response pp.693-700
Published Date 2008/8/10
DOI https://doi.org/10.11477/mf.1436100780
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 The negative motor area and anterior and posterior language areas were localized by intraoperative electrical cortical stimulation under the awake condition to evaluate the clinical significance of these areas. Thirty-seven awake craniotomies with language mapping were performed in 36 patients with brain tumors. The negative motor area was determined in 17 cases, and the anterior and posterior language areas were found in 12 and 6 cases, respectively. The negative motor area was located in the precentral gyrus inferior to the orofacial motor area in 16 cases, and in the inferior frontal gyrus anterior to the orofacial motor area in one case. Both the negative motor area and the anterior language area were determined in 8 cases. Anterior language areas in these 8 cases were located anterior and/or inferior to the negative motor areas. The negative motor area is an easily determined, important landmark for intraoperative language mapping.


Copyright © 2008, 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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