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Japanese

Age-related Changes of Diffusional Anisotropy in the Cerebral White Matter in Normal Subjects Haruo Hanyu 1 , Tetsuichi Asano 1 , Kimikazu Ogawa 1 , Masaru Takasaki 1 , Hiroaki Shindo 2 , Dai Kakizaki 2 , Kimihiko Abe 2 1Departments of Geriatric Medicine, Tokyo Medical College 2Departments of Radiology, Tokyo Medical College Keyword: cerebral white matter , diffusion-weighted imaging , diffusional anisotropy , aging , brain atrophy pp.331-336
Published Date 1997/4/1
DOI https://doi.org/10.11477/mf.1406901090
  • Abstract
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To investigate age-related changes of diffusional anisotropy in the cerebral white matter, we per-formed diffusion-weighted MRI studies in 21 normal subjects aged 25 to 96 years.

The anisotropic rations (ARs), defined as the apparent diffusion coefficients perpendicular to the nerve fibers to those parallel to the nerve fibers, were significantly higher in elderly than in young subjects in the anterior and posterior white matter surrounding the lateral ventricle. Moreover, significant correlation between age and AR was found in the anterior white matter.


Copyright © 1997, Igaku-Shoin Ltd. All rights reserved.

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電子版ISSN 2185-405X 印刷版ISSN 0006-8969 医学書院

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