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Stereotactic Radiotherapy (SRT) for Acoustic Neuroma by Linear Accelerator Tooru Sakamoto 1 1Department of Otolaryngology, Hokkaido University School of Medicine pp.772-776
Published Date 1997/10/20
DOI https://doi.org/10.11477/mf.1411901667
  • Abstract
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We analyzed forty one patients with acoustic neuroma treated by SRT giving 36 Gy in 20 frac-tions to 48 Gy in 23 fractions during 1991 and 1997, and found a sterilization of tumor size in 97.6%. Twenty-six patients had measurable hearing before and after SRT and 43.5% of patients showed change in pure tone average less than 10 dB, 82.6% less than 20 dB at the last follow-up examination. Facial and trigeminal nerve function was evaluated in 41 patients. Transient facial weakness developed in 4.8% and trigeminal neuropathy in 9.6% of irradiat-ed cases. We consider that SRT complications are less than that of gamma-knife, although the longer follow-up period should be needed.


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

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電子版ISSN 1882-1316 印刷版ISSN 0914-3491 医学書院

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