WEKO3
アイテム
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Methods and Materials: Five hundreds and forty-two prostate cancer patients who received C-ion RT established through two preceding dose-escalation studies were analyzed in regard to toxicity, survival, and bNED. Results: Concerning radiation morbidity, no grade 3 or higher toxicities were observed either in the rectum or genitourinary system (GU), and the incidences of grade 2 rectum and GU morbidity were only 2.3% and 4.8%, respectively. The incidence of late GU toxicity in patients treated with 16 fractions of C-ion RT was lower than that of 20 fractions. Overall bNED at 5 years was 88.9%, with only four local recurrences. bNED of 16 fractions of C-ion RT was comparable to that of 20 fractions. Gleason\u0027s score, T-stage, and initial PSA were significant prognostic factors for bNED, and T-stage was also a significant prognostic factor for overall survival rate. 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Carbon Ion Radiotherapy for Prostate Cancer
https://repo.qst.go.jp/records/54224
https://repo.qst.go.jp/records/542243648558b-fed0-49a9-8e52-e62c74588d87
Item type | 会議発表論文 / Conference Paper(1) | |||||
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公開日 | 2010-06-23 | |||||
タイトル | ||||||
タイトル | Carbon Ion Radiotherapy for Prostate Cancer | |||||
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_5794 | |||||
資源タイプ | conference paper | |||||
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 |
Tsuji, Hiroshi
× Tsuji, Hiroshi× Okada, Tohru× Sugahara, Shinji× Serizawa, Itsuko× Kato, Hiroyuki× Ishikawa, Hitoshi× Kamada, Tadashi× Mizoe, Junetsu× Kanai, Tatsuaki× Tsujii, Hirohiko× 辻 比呂志× 岡田 徹× 菅原 信二× 芹澤 慈子× 加藤 弘之× 石川 仁× 鎌田 正× 溝江 純悦× 金井 達明× 辻井 博彦 |
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抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | Purpose: Analysis of the results of hypofractionated conformal carbon ion radiotherapy (C-ion RT) for localized prostate cancer was performed, with regard to normal tissue morbidity, biochemical relapse-free rate (bNED), and patient survival. Methods and Materials: Five hundreds and forty-two prostate cancer patients who received C-ion RT established through two preceding dose-escalation studies were analyzed in regard to toxicity, survival, and bNED. Results: Concerning radiation morbidity, no grade 3 or higher toxicities were observed either in the rectum or genitourinary system (GU), and the incidences of grade 2 rectum and GU morbidity were only 2.3% and 4.8%, respectively. The incidence of late GU toxicity in patients treated with 16 fractions of C-ion RT was lower than that of 20 fractions. Overall bNED at 5 years was 88.9%, with only four local recurrences. bNED of 16 fractions of C-ion RT was comparable to that of 20 fractions. Gleason's score, T-stage, and initial PSA were significant prognostic factors for bNED, and T-stage was also a significant prognostic factor for overall survival rate. The duration of hormonal therapy also had an impact on biochemical control in high-risk patients, but it appeared possible to apply C-ion RT with short-course hormonal therapy to intermediate-risk patients. Conclusion: C-ion RT with the established dose fractionation regimen yielded satisfactory bNED with very few local recurrences, and with minimal morbidity. C-ion RT of 16 fractions could offer even lower incidence of GU toxicity than that of 20 fractions. | |||||
書誌情報 |
NIRS-ETOILE Joint Symposium on Carbon Ion Radiotherapy 巻 NIRS-M, 号 218, p. 88-96, 発行日 2009-03 |
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出版者 | ||||||
出版者 | National Institute of Radiological Sciences |