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Respiratory Correlated Segment Reconstruction Algorithm Towards Four-dimensional Radiation Therapy Using Carbon Ion Beams
https://repo.qst.go.jp/records/44785
https://repo.qst.go.jp/records/4478512fbe43f-5e0b-47c6-a8a6-1263588b0645
Item type | 学術雑誌論文 / Journal Article(1) | |||||
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公開日 | 2007-02-09 | |||||
タイトル | ||||||
タイトル | Respiratory Correlated Segment Reconstruction Algorithm Towards Four-dimensional Radiation Therapy Using Carbon Ion Beams | |||||
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_6501 | |||||
資源タイプ | journal article | |||||
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 |
Mori, Shinichiro
× Mori, Shinichiro× Endo, Masahiro× Kohno, Ryosuke× Asakura, Hiroshi× Kohno, Kazutoshi× Yashiro, Tomoyasu× Komatu, Syuhei× Kandatsu, Susumu× Baba, Masayuki× 森 慎一郎× 遠藤 真広× 河野 良介× 矢代 智康× 小松 秀平× 神立 進× 馬場 雅行 |
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抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | Purpose: To enhance the precision of treatment planning for tumors which move under respiration, we developed a respiratory-correlated segment reconstruction method (RS) based on the Feldkamp-Davis-Kress algorithm (FDK) which provides high temporal resolution and a high signal-to-noise ratio. We compared full-scan (FS-FDK) and RS-FDK with regard to dose distribution in heavy ion treatment planning. \nMaterial and Methods: Data acquisition for RS-FDK is done using a respiratory sensing system in cine scan mode with a 256-multi-detector row CT (256-MDCT). To evaluate the accuracy of irradiation of moving tumors, dose distributions with each algorithm were compared in heavy ion treatment planning using beam parameters obtained with FS-FDK. \nResults: Images obtained using RS-FDK did not show motion artifacts and visualized the edges of the liver and pulmonary vessels more clearly than those with FS-FDK. The iso-dose distributions for FS-FDK covered the target volume; in contrast, RS-FDK with the beam parameter of FS-FDK image provided an insufficient dose to the target and a considerable dose to normal tissues around it. \nConclusions: The information provided by RS-FDK improves accuracy in the prescription of dose-to-target volume. Further, RS-FDK allows greater precision in the delivery of radiotherapy, including 4D radiation therapy. |
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書誌情報 |
Radiotherapy and Oncology 巻 80, 号 3, p. 341-348, 発行日 2006-09 |
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ISSN | ||||||
収録物識別子タイプ | ISSN | |||||
収録物識別子 | 0167-8140 |