ID | 31630 |
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フルテキストURL | |
著者 |
Yamamoto, Michinori
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
ORCID
Kaken ID
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Hiraki, Yoshio
Department of Radiology, Okayama University Medical School
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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.
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キーワード | T1 glottic cancers
radiotherapy
radiation beam energy
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Amo Type | Article
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出版物タイトル |
Acta Medica Okayama
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発行日 | 1999-04
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巻 | 53巻
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号 | 2号
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出版者 | Okayama University Medical School
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開始ページ | 91
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終了ページ | 94
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ISSN | 0386-300X
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NCID | AA00508441
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資料タイプ |
学術雑誌論文
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言語 |
英語
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著作権者 | Copyright© 1999 Okayama University Medical School
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論文のバージョン | publisher
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査読 |
有り
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Web of Science KeyUT | |
関連URL | http://ousar.lib.okayama-u.ac.jp/metadata/3496
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