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MRI in dentatorubropallidoluysian atrpohy. Shigeyuki KOJIMA 1 , Keizo HIRAYAMA 1 1Department of Neurology, School of Medicine, Chiba University pp.84-93
Published Date 1990/2/10
DOI https://doi.org/10.11477/mf.1431900009
  • Abstract
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 Atrophy and signal change of the brain in dentatorubropallidoluysian atrophy (DRPLA) were analyzed using magnetic resonance imaging (MRI) and their results were compared with those in olivopontocerebellar atrophy (OPCA).

 First, T1-weighted inversion recovery MRI was performed on seven patients with DRPLA (1 ataxo-choreoathetoid form, 6 pseudo-Huntington form), fourteen patients with OPCA and fourteen normal control individuals to assess the atrophy of the brain. Although remarkable dilatation of the fourth ventricle had been said to be characteristic in OPCA, both marked dilatation of the fourth ventricle and cerebellar atrophy were significantly found in DRPLA as well as in OPCA. Marked dilatation of the fourth ventricle was suggested to be due to the degeneration of the dentate nuclei and their efferent fibers in DRPLA and the middle cerebellar peduncles in OPCA.


Copyright © 1990, Igaku-Shoin Ltd. All rights reserved.

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電子版ISSN 1882-1243 印刷版ISSN 0001-8724 医学書院

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