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External dosimetry audit for quality assurance of carbon‐ion radiation therapy clinical trials
https://repo.qst.go.jp/records/49271
https://repo.qst.go.jp/records/49271c9a61880-5239-42fb-bab9-e67ea925c1b5
| Item type | 学術雑誌論文 / Journal Article(1) | |||||
|---|---|---|---|---|---|---|
| 公開日 | 2018-11-26 | |||||
| タイトル | ||||||
| タイトル | External dosimetry audit for quality assurance of carbon‐ion radiation therapy clinical trials | |||||
| 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 |
Mizuno, Hideyuki
× Mizuno, Hideyuki× Fukumura, Akifumi× Kanematsu, Nobuyuki× Yonai, Shunsuke× Shirai, Toshiyuki× Yusa, Ken× Yanou, Toshihiro× Suga, Masaki× Mizota, Manabu× Minohara, Shinichi× Kanai, Tatsuaki× Kamada, Tadashi× Mizuno, Hideyuki× Fukumura, Akifumi× Kanematsu, Nobuyuki× Yonai, Shunsuke× Shirai, Toshiyuki× Yusa, Ken× Yanou, Toshihiro× suga, masaki× Mizota, Manabu× Minohara, Shinichi× Kanai, Tatsuaki× Kamada, Tadashi |
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| 抄録 | ||||||
| 内容記述タイプ | Abstract | |||||
| 内容記述 | Purpose: The QA team of the Japan carbon‐ion radiation oncology study group (J‐CROS) was organized in 2015 to enhance confidence in the accuracy of clinical dosimetry and ensure that the facility QA procedures are adequate. The team conducted onsite dosimetry audits in all the carbon‐ion radiation therapy centers in Japan. Materials and Methods: A special phantom was fabricated for the onsite dosimetry audit. Target volumes such as the GTV, CTV, and PTV were contoured to the obtained CT images, and two plans with different isocenter depths were created. The dose at the isocenter was measured by an ionization chamber, in the onsite audit and compared with the calculated dose. Results: For all the centers, the average of the percentage ratio between the measured and calculated doses (measured/calculated) was 0.5% (−2.7% to +2.6%) and the standard deviation, 1.7%. In all the centers, the beams were within the set tolerance level of 3%. Conclusions: The audit demonstrated that the dose at a single point in the water phantom was within tolerance, but it is a big step to say that all doses are correct. In addition, this external dosimetry audit encouraged centers to improve the quality of their dosimetry systems. |
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| 書誌情報 |
Journal of Applied Clinical Medical Physics 巻 20, 号 1, p. 31-36, 発行日 2018-11 |
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| 出版者 | ||||||
| 出版者 | Wiley Periodicals, Inc. | |||||
| ISSN | ||||||
| 収録物識別子タイプ | ISSN | |||||
| 収録物識別子 | 1526-9914 | |||||
| PubMed番号 | ||||||
| 識別子タイプ | PMID | |||||
| 関連識別子 | 30387294 | |||||
| DOI | ||||||
| 識別子タイプ | DOI | |||||
| 関連識別子 | 10.1002/acm2.12465 | |||||
| 関連サイト | ||||||
| 識別子タイプ | URI | |||||
| 関連識別子 | https://aapm.onlinelibrary.wiley.com/doi/full/10.1002/acm2.12465 | |||||
