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Out-of-field dose studies with an anthropomorphic phantom: comparison of X-rays and particle therapy treatments
https://repo.qst.go.jp/records/46633
https://repo.qst.go.jp/records/46633f5e82572-f476-4a68-b792-4d136a77f6fd
| Item type | 学術雑誌論文 / Journal Article(1) | |||||
|---|---|---|---|---|---|---|
| 公開日 | 2013-11-26 | |||||
| タイトル | ||||||
| タイトル | Out-of-field dose studies with an anthropomorphic phantom: comparison of X-rays and particle therapy treatments | |||||
| 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 |
Latessa, Chiara
× Latessa, Chiara× Berger, Thomas× Kaderka, Robert× Matsufuji, Naruhiro× Reitz, Gunther× Durante, Marco× et.al× Ｌａｔｅｓｓａ Ｃｈｉａｒａ× Ｋａｄｅｒｋａ Ｒｏｂｅｒｔ× 松藤 成弘 |
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| 抄録 | ||||||
| 内容記述タイプ | Abstract | |||||
| 内容記述 | Background and purpose: Characterization of the out-of-field dose profile following irradiation of the target with a 3D treatment plan delivered with modern techniques. Methods: An anthropomorphic RANDO phantom was irradiated with a treatment plan designed for a simulated 5x2x5 cm3 tumor volume located in the center of the head. The experiment was repeated with all most common radiation treatment types (photons, protons and carbon ions) and delivery techniques (Intensity Modulated Radiation Therapy, passive modulation and spot scanning). The measurements were performed with active diamond detector and passive thermoluminescence (TLD) detectors to investigate the out-of-field dose both inside and outside the phantom. Results: The highest out-of-field dose values both on the surface and inside the phantom were measured during the treatment with 25 MV photons. In the proximity of the Planned Target Volume (PTV), the lowest lateral dose profile was observed for passively modulated protons mainly because of the presence of the collimator in combination with the chosen volume shape. In the far out-of-field region (above 100 mm from the PTV), passively modulated ions were characterized by a less pronounced dose falloff in comparison with scanned beams. Overall, the treatment with scanned carbon ions delivered the lowest dose outside the target volume. Conclusions: For the selected PTV, the use of the collimator in proton therapy drastically reduced the dose deposited by ions or photons nearby the tumor. Scanning modulation represents the optimal technique for achieving the highest dose reduction far-out-of-field. |
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| 書誌情報 |
Radiotherapy and Oncology 巻 105, 号 1, p. 133-138, 発行日 2012-05 |
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| ISSN | ||||||
| 収録物識別子タイプ | ISSN | |||||
| 収録物識別子 | 0167-8140 | |||||
| DOI | ||||||
| 識別子タイプ | DOI | |||||
| 関連識別子 | 10.1016/j.radonc.2012.04.004 | |||||
