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Carbon Ion Radiotherapy in Hypofraction Regimen for Stage I Non-Small Cell Lung Cancer
https://repo.qst.go.jp/records/53942
https://repo.qst.go.jp/records/53942dbd293a3-615a-4007-84ae-2ec368342318
Item type | 会議発表論文 / Conference Paper(1) | |||||
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公開日 | 2008-04-28 | |||||
タイトル | ||||||
タイトル | Carbon Ion Radiotherapy in Hypofraction Regimen for Stage I Non-Small Cell Lung 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 |
Miyamoto, Tadaaki
× Miyamoto, Tadaaki× Baba, Masayuki× Yashiro, Tomoyasu× Sugane, Toshio× Nakajima, Mio× Tsujii, Hirohiko× 宮本 忠昭× 馬場 雅行× 矢代 智康× 須金 紀雄× 中嶋 美緒× 辻井 博彦 |
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抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | From 1994 to 1999, we conducted a phase I/II clinical trial for stage I non-small cell lung cancer (NSCLC) by using carbon ion beams alone, demonstrating optimal doses of 90 GyE in 18 fractions over 6 weeks and 72 GyE in 9 fractions over 3 weeks for achieving more than 95% local control with minimal pulmonary damage. In the present study, the total dose was fixed at 72 GyE in 9 fractions over 3 weeks, and at 52.8 GyE for stage IA and 60 GyE for stage 1B in 4 fractions over 1 week. Following this schedule, we conducted a phase II clinical trial for stage I NSCLC from 1999 to 2003. Most targets were irradiated from four oblique directions. A respiratory-gated irradiation system was used for all sessions. Local control and survival were assessed by the Kaplan-Meier method. For statistical testing, the long-rank test was used. The local control rate for all patients was 91.5%, and those for T1 and T2 tumors were 96.3% and 84.7%, respectively. While there was significant difference (p=0.0156) in tumor control rate between T1 and T2, there was no significant difference (P=0.1516) between squamous and non-squamous. The five-year cause-specific survival rate was 67.0% (IA: 84.4, IB: 43.7), and overall survival was 45.3% (IA: 53.9, 1B: 34.2). No adverse effects greater than grade 3 occurred in the lung. Carbon beam radiotherapy, an excellent new modality in terms of high QOL and ADL, was proven to be a valid alternative to surgery for stage I cancer, especially for elderly and inoperable patients. |
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書誌情報 |
NIRS-CNAO Joint Symposium on Carbon Ion Radiotherapy 巻 NIRS-M-194, p. 49-58, 発行日 2006-11 |
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出版者 | ||||||
出版者 | National Institute of Radiological Sciences | |||||
ISBN | ||||||
識別子タイプ | ISBN | |||||
関連識別子 | 4-9389-8737 |