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Moving target irradiation with fast rescanning and gating in particle therapy
https://repo.qst.go.jp/records/46270
https://repo.qst.go.jp/records/462705ba9f360-4f3d-45d2-9a97-ede3c868a53b
| Item type | 学術雑誌論文 / Journal Article(1) | |||||
|---|---|---|---|---|---|---|
| 公開日 | 2012-02-23 | |||||
| タイトル | ||||||
| タイトル | Moving target irradiation with fast rescanning and gating in particle therapy | |||||
| 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 |
Furukawa, Takuji
× Furukawa, Takuji× Inaniwa, Taku× Satou, Shinji× Shirai, Toshiyuki× Mori, Shinichiro× Takeshita, Eri× Mizushima, Kota× Himukai, Takeshi× Noda, Kouji× 古川 卓司× 稲庭 拓× 佐藤 眞二× 白井 敏之× 森 慎一郎× 竹下 英里× 水島 康太× 日向 猛× 野田 耕司 |
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| 抄録 | ||||||
| 内容記述タイプ | Abstract | |||||
| 内容記述 | Purpose: In moving target irradiation with pencil beam scanning, the interplay effect between the target motion and the scanned beam is a problem because this effect causes over or under dosage in the target volume. To overcome this, we have studied rescanning using a gating technique. Methods: A simulation and experimental study was carried out. In the experiment, we used the fast scanning system developed at the HIMAC to verify the validity of phase controlled rescanning method, in which the time for rescanning irradiation of each slice is matched to the gating duration. Results: Simulation and experimental results showed that controlling the scan speed to match the respiration cycle with rescans can deliver the blurred dose distribution. In the comparison between the static measurements and the moving measurements with the phase controlled rescanning method, the dose difference was less than 2% for pinpoint chambers in the target volume. Conclusions: The simulation and experimental results demonstrated that the phase controlled rescanning method makes it possible to deliver the dose distribution close to the expected one. As an experimental result for 3D irradiation, it was estimated that blurring by the probability density function was not only for a lateral distribution, but also for a distal distribution, even in the lateral rescanning |
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| 書誌情報 |
Medical Physics 巻 37, 号 9, p. 4874-4879, 発行日 2010-08 |
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| ISSN | ||||||
| 収録物識別子タイプ | ISSN | |||||
| 収録物識別子 | 0094-2405 | |||||
| DOI | ||||||
| 識別子タイプ | DOI | |||||
| 関連識別子 | 10.1118/1.3481512 | |||||
