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Beam direction arrangement using a superconducting rotating gantry in carbon ion treatment for pancreatic cancer
https://repo.qst.go.jp/records/76718
https://repo.qst.go.jp/records/767187d50b688-8566-4bb2-8da9-29f9736becd1
| Item type | 学術雑誌論文 / Journal Article(1) | |||||
|---|---|---|---|---|---|---|
| 公開日 | 2019-09-10 | |||||
| タイトル | ||||||
| タイトル | Beam direction arrangement using a superconducting rotating gantry in carbon ion treatment for pancreatic 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_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 |
Keum, WoongSeop
× Keum, WoongSeop× Mori, Shinichiro× Furuichi, Wataru× Yamada, Shigeru× Keum, WoongSeop× Mori, Shinichiro× Furuichi, Wataru× Yamada, Shigeru |
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| 抄録 | ||||||
| 内容記述タイプ | Abstract | |||||
| 内容記述 | objectives: Carbon ion radiotherapy provides a concen- trated dose distribution to the target and has several advantages over photon radiotherapy. This study aimed to evaluate the optimal beam direction in carbon ion pencil beam scanning and compare dose distributions between the rotating gantry system (RGS) and fixed- beam port system (FBPS). methods: Patients with locally advanced pancreatic cancer were randomly selected. First, dose-volume parameters of 7-beam directions in the prone position were evaluated. Second, a composite plan developed using 4-beam directions in RGS was compared with that developed using FBPS, with a total prescribed dose of 55.2 Gy (relative biological effectiveness, RBE) in 12 fractions. results: Target coverages in the composite plan did not widely differ. For the first and second segments of the duodenum, the mean dose of D2cc was not significantly changed (23.80 ± 11.90 Gy [RBE] and 25.63 ± 10.41 Gy [RBE] for RGS and FBPS, respectively). However, the dose-volume histogram curve in RGS showed a promi- nent dose reduction in the low-dose region. No signifi- cant differences were observed in the stomach, third and fourth segments of the duodenum, and spinal cord. The mean dose of the total kidney was similar between RGS and FBPS. conclusions: Compared with that of FBPS, the 4-beam arrangement in the prone position using RGS provides comparable or superior dose distribution in the surrounding normal organ while achieving the same target coverage. In addition, RGS allows for single-pa- tient positioning. advances in knowledge: RGS is beneficial in delivering radiotherapy doses to the duodenum and allows for single-patient positioning and a simple planning process. |
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| 書誌情報 |
British Journal of Radiology 巻 92, 号 1098, 発行日 2019-04 |
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| 出版者 | ||||||
| 出版者 | British Institute of Radiology | |||||
| ISSN | ||||||
| 収録物識別子タイプ | ISSN | |||||
| 収録物識別子 | 1748-880X | |||||
| DOI | ||||||
| 識別子タイプ | DOI | |||||
| 関連識別子 | 10.1259/bjr.20190101 | |||||
| 関連サイト | ||||||
| 識別子タイプ | URI | |||||
| 関連識別子 | https://www.birpublications.org/doi/10.1259/bjr.20190101 | |||||
