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The grid-dose-spreading algorithm for dose distribution calculation in heavy charged particle radiotherapy
https://repo.qst.go.jp/records/47574
https://repo.qst.go.jp/records/475748819febf-c140-4ef5-a1ac-a4a40e0e8f1e
| 名前 / ファイル | ライセンス | アクション |
|---|---|---|
manuscript.pdf (315.0 kB)
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| Item type | 学術雑誌論文 / Journal Article(1) | |||||
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| 公開日 | 2016-10-18 | |||||
| タイトル | ||||||
| タイトル | The grid-dose-spreading algorithm for dose distribution calculation in heavy charged particle 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_6501 | |||||
| 資源タイプ | journal article | |||||
| 著者 |
Kanematsu, Nobuyuki
× Kanematsu, Nobuyuki× Yonai, Shunsuke× Ishizaki, Azusa× 兼松 伸幸× 米内 俊祐× 石崎 梓 |
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| 抄録 | ||||||
| 内容記述タイプ | Abstract | |||||
| 内容記述 | A new variant of the pencil-beam (PB) algorithm for dose distribution calculation for radiotherapy with protons and heavier ions, the grid-dose spreading (GDS) algorithm, is proposed. The GDS algorithm is intrinsically faster than conventional PB algorithms due to approximations in convolution integral, where physical calculations are decoupled from simple grid-to-grid energy transfer. It was effortlessly implemented to a carbon-ion radiotherapy treatment planning system to enable realistic beam blurring in the field, which was absent with the broad-beam (BB) algorithm. For a typical prostate treatment, the slowing factor of the GDS algorithm relative to the BB algorithm was 1.4, which is a great improvement over the conventional PB algorithms with a typical slowing factor of several tens. The GDS algorithm is mathematically equivalent to the PB algorithm for horizontal and vertical coplanar beams commonly used in carbon-ion radiotherapy while dose deformation within the size of the pristine spread occurs for angled beams, which was within 3 mm for a single 150-MeV proton pencil beam of 30-degree incidence, and needs to be assessed against the clinical requirements and tolerances in practical situations. | |||||
| 書誌情報 |
Medical Physics 巻 35, 号 2, p. 602-607, 発行日 2008-01 |
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| ISSN | ||||||
| 収録物識別子タイプ | ISSN | |||||
| 収録物識別子 | 0094-2405 | |||||
| PubMed番号 | ||||||
| 識別子タイプ | PMID | |||||
| 関連識別子 | 18383681 | |||||
| DOI | ||||||
| 識別子タイプ | DOI | |||||
| 関連識別子 | 10.1118/1.2829878 | |||||
