| アイテムタイプ |
学術雑誌論文 / Journal Article(1) |
| 公開日 |
2025-01-17 |
| タイトル |
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タイトル |
Stopping-power ratio of body tissues with updated effective energies and elemental I values for treatment planning of proton therapy and ion beam therapy with helium, carbon, oxygen, and neon ions |
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言語 |
en |
| 言語 |
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|
言語 |
eng |
| 資源タイプ |
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資源タイプ識別子 |
http://purl.org/coar/resource_type/c_6501 |
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資源タイプ |
journal article |
| 著者 |
Inaniwa Taku
Weichert Emely
Masuda Takamitsu
Tanaka Sodai
Matsufuji Naruhiro
Kanematsu Nobuyuki
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| 抄録 |
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内容記述タイプ |
Abstract |
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内容記述 |
The stopping-power ratio (SPR) of body tissues relative to water depends on the particle energy and mean excitation energy (I value) of the tissues. Effective energies to minimize the range error in proton therapy and ion beam therapy with helium, carbon, oxygen, and neon ions and elemental I values have been updated in recent studies. We investigated the effects of these updates on SPR estimation for computed tomography-based treatment planning. The updates led to an increase of up to 0.5% in the SPRs of soft tissues, whereas they led to a decrease of up to 1.9% in the SPRs of bone tissues compared with the current clinical settings. For 44 proton beams planned for 15 randomly sampled patients, the mean water-equivalent target depth change was ? 0.2 mm with a standard deviation of 0.2 mm. The maximum change was ? 0.6 mm, which we consider to be insignificant in clinical practice. |
| 書誌情報 |
Radiological Physics and Technology
巻 16,
p. 319-324,
発行日 2023-04
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| 出版者 |
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出版者 |
Springer Nature |
| ISSN |
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収録物識別子タイプ |
ISSN |
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収録物識別子 |
1865-0341 |
| DOI |
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識別子タイプ |
DOI |
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関連識別子 |
10.1007/s12194-023-00721-6 |
