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Correlation of Obsteoradionecrosis with Dosimetric Parameters in Carbon Ion Radiotherapy
https://repo.qst.go.jp/records/65009
https://repo.qst.go.jp/records/650094cfcad4c-19ab-459c-830d-ab4485feb98c
| Item type | 会議発表用資料 / Presentation(1) | |||||
|---|---|---|---|---|---|---|
| 公開日 | 2013-05-23 | |||||
| タイトル | ||||||
| タイトル | Correlation of Obsteoradionecrosis with Dosimetric Parameters in Carbon Ion Radiotherapy | |||||
| 言語 | ||||||
| 言語 | eng | |||||
| 資源タイプ | ||||||
| 資源タイプ識別子 | http://purl.org/coar/resource_type/c_c94f | |||||
| 資源タイプ | conference object | |||||
| アクセス権 | ||||||
| アクセス権 | metadata only access | |||||
| アクセス権URI | http://purl.org/coar/access_right/c_14cb | |||||
| 著者 |
Sasahara, Go
× Sasahara, Go× Ikawa, Hiroaki× Takagi, Ryo× Koto, Masashi× Hasegawa, Azusa× Tsuji, Hiroshi× Kamada, Tadashi× Okamoto, Yoshitaka× 佐々原 剛× 伊川 裕明× 高木 亮× 小藤 昌志× 長谷川 安都佐× 辻 比呂志× 鎌田 正× 岡本 美孝 |
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| 抄録 | ||||||
| 内容記述タイプ | Abstract | |||||
| 内容記述 | Purpose: The purpose of this study is to analyze the relation between the irradiation dose of maxilla and osteoradionecrosis after carbon ion radiotherapy using dose-volume histograms. Materials and Methods: From April 1997 to April 2006, 243 patients with tumors in the head and neck region were treated with carbon ion radiotherapy in our institution. Analysis was performed to 59 patients whose alveolar process and palatine process of maxilla had been included in the irradiated volume and had not been infiltrated by the tumor. These patients had a follow-up period of at least 2 years. We evaluated the prognostic factors of osteoradionecrosis in carbon ion radiotherapy, using dose-volume histograms. Results: The median age of 59 patients (31 men, 28 women) was 58 years. The prescribed tumor dose was 57.6 GyE in 16 fractions over 4 weeks. Dose-volume histogram analysis revealed that the percentages of maxilla volume receiving more than 50 GyE (V50) were significantly higher in patients with >grade 1 osteonecrosis than in those with grade 0. The number of teeth within radiation fields and were correlated with osteoradionecrosis. Conclusions: V50 and the number of teeth within radiation fields were significant risk factors for >grade 1 osteoradionecrosis induced by carbon ion radiotherapy administered in 16 fractions. |
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| 会議概要（会議名, 開催地, 会期, 主催者等） | ||||||
| 内容記述タイプ | Other | |||||
| 内容記述 | Heavy Ion in Therapy and Space Radiation Symposium 2013(HITSRS2013) | |||||
| 発表年月日 | ||||||
| 日付 | 2013-05-18 | |||||
| 日付タイプ | Issued | |||||
