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ID 31630
JaLCDOI
フルテキストURL
著者
Yamamoto, Michinori Department of Radiology, Okayama University Medical School
Joja, Ikuo Department of Radiology, Okayama University Medical School
Takemoto, Mitsuhiro Department of Radiology, Okayama University Medical School
Kuroda, Masahiro Department of Radiology, Okayama University Medical School Kaken ID researchmap
Hiraki, Yoshio Department of Radiology, Okayama University Medical School
抄録
We analyzed the influence of various parameters on the results of radiotherapy for T1 glottic cancer by assessing the outcomes of 60 patients with this cancer who received definitive radiotherapy between 1985 and 1994. Seven patients were treated with a cobalt-60 unit, and the other 53 with a linear accelerator (26 patients at 3-MV, 10 at 6-MV, and 17 at 10-MV). Of the 17 patients treated at 10-MV, 4 also received part of their treatment with a cobalt-60 unit. The total radiation dose ranged from 56 Gy to 70 Gy (mean, 61 Gy). The total radiation dose of 51 patients (85%) was 60 Gy. The factors found to influence local control were the strength of the radiation beam energy and whether or not there was gross tumor invasion of the anterior commissure. The local control rate was 71% in the patients treated with a 10-MV linear accelerator, 56% in those treated with a 6-MV linear accelerator and, 97% in those treated with a cobalt-60 unit or a 3-MV linear accelerator (P = 0.0173). The local control rate was 43% in the patients with gross anterior commissure invasion and 88% in those without (P = 0.0075). We conclude that low energy photon beams are more suitable for the treatment of early glottic cancers, especially if the lesion grossly invades the anterior commissure.
キーワード
T1 glottic cancers
radiotherapy
radiation beam energy
Amo Type
Article
発行日
1999-04
出版物タイトル
Acta Medica Okayama
53巻
2号
出版者
Okayama University Medical School
開始ページ
91
終了ページ
94
ISSN
0386-300X
NCID
AA00508441
資料タイプ
学術雑誌論文
言語
English
著作権者
Copyright© 1999 Okayama University Medical School
論文のバージョン
publisher
査読
有り
Web of Science KeyUT
関連URL
http://ousar.lib.okayama-u.ac.jp/metadata/3496