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Studies on the Factors Affecting the Reduction of Chronic Subdural Hematoma: Effect of preoperative factors with special reference to cerebral atrophy Kazuya NAGATA 1 , Takao ASANO 1 , Norihiko BASUGI 2 , Toshiro TANGO 3 , Kintomo TAKAKURA 4 1Department of Neurosurgery, Saitama Medical Center 2Department of Neurosurgery, Kanto Rosai Hospital 3National Institute of Public Health 4Department of Neurosurgery, University of Tokyo Keyword: Chronic subdural hematoma , Reduction rate , CT scan , Cerebral atrophy , Drainage pp.1347-1353
Published Date 1988/11/10
DOI https://doi.org/10.11477/mf.1436202723
  • Abstract
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The authors examined the preoperative factors affecting the reduction of chronic subdural hematoma (CSDH) . A new method was developed to calculate the reduction rate of CSDH using CT volumetry tech-nique. Postoperative serial CT films were examined and each hematoma volume was calculated by microcompu-ter. A postoperative exponential decrease of hematoma volume was observed, and the log-transformation of the hematoma volume turned the curve to a linear de-crease. The least square method was used to fit an ex-ponential curve, and the half reduction date (HRD) was calculated from the fitting curve.


Copyright © 1988, 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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