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粒子線治療計画のためのCT値阻止能比変換の校正方法の更新
https://repo.qst.go.jp/records/48351
https://repo.qst.go.jp/records/4835168a4adc5-b066-4bd8-8fc7-1181281cd20e
| Item type | 学術雑誌論文 / Journal Article(1) | |||||
|---|---|---|---|---|---|---|
| 公開日 | 2017-10-06 | |||||
| タイトル | ||||||
| タイトル | 粒子線治療計画のためのCT値阻止能比変換の校正方法の更新 | |||||
| 言語 | ||||||
| 言語 | jpn | |||||
| 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 |
兼松, 伸幸
× 兼松, 伸幸× 森, 慎一郎× 稲庭, 拓× 兼松 伸幸× 森 慎一郎× 稲庭 拓 |
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| 抄録 | ||||||
| 内容記述タイプ | Abstract | |||||
| 内容記述 | A calibration method for CT-number to stopping-power-ratio conversion was recently proposed as a revision of the Japanese de facto standard method that has been used at particle-therapy centers in Japan for over a decade. The revised method deals with 11 representative tissues with specific elemental composition and density, based on a latest compilation of standard tissue data. We report here how the revision was actually implemented into clinical practice. We applied the revised method to 7 CT-scanning conditions currently in use for treatment planning. For each condition, we derived CT numbers and stopping-power ratios of the representative tissues to constitute a polyline conversion function. We analyzed the target-depth change by the revision for 38 beams in treatment plans for 13 randomly sampled patients. The revision caused a mean change of +0.3 mm with a standard deviation of 0.4 mm. The maximum change was +1.2 mm or +0.5% of the depth, which may be clinically insignificant. The transition to the revised method was straightforward and would slightly improve the accuracy of beam range in particle therapy. | |||||
| 書誌情報 |
医学物理 巻 37, 号 1, p. 34-37, 発行日 2017-09 |
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| 出版者 | ||||||
| 出版者 | 日本医学物理学会 | |||||
| ISSN | ||||||
| 収録物識別子タイプ | ISSN | |||||
| 収録物識別子 | 1345-5354 | |||||
| PubMed番号 | ||||||
| 識別子タイプ | PMID | |||||
| 関連識別子 | 28924096 | |||||
| DOI | ||||||
| 識別子タイプ | DOI | |||||
| 関連識別子 | 10.11323/jjmp.37.1_34 | |||||
| 関連サイト | ||||||
| 識別子タイプ | DOI | |||||
| 関連識別子 | https://doi.org/10.11323/jjmp.37.1_34 | |||||
| 関連名称 | https://doi.org/10.11323/jjmp.37.1_34 | |||||
