| Item type |
デフォルトアイテムタイプ_（フル）(1) |
| 公開日 |
2023-03-18 |
| タイトル |
|
|
タイトル |
Assessment of biological dosimetric margin for stereotactic body radiation therapy |
|
言語 |
en |
| 作成者 |
Kawahara, Daisuke
Saito, Akito
Ozawa, Shuichi
Shiinoki, Takehiro
Kimura, Tomoki
Tsubouchi, Kento
Nagata, Yasushi
|
| アクセス権 |
|
|
アクセス権 |
open access |
|
アクセス権URI |
http://purl.org/coar/access_right/c_abf2 |
| 権利情報 |
|
|
権利情報 |
This is an open access article under the terms of the Creative Commons Attribution License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited. © 2020 The Authors. Journal of Applied Clinical Medical Physics published by Wiley Periodicals, Inc. on behalf of American Association of Physicists in Medicine. |
| 主題 |
|
|
主題Scheme |
Other |
|
主題 |
biological equivalent dose |
| 主題 |
|
|
主題Scheme |
Other |
|
主題 |
dosimetric margin |
| 主題 |
|
|
主題Scheme |
Other |
|
主題 |
LQ model |
| 主題 |
|
|
主題Scheme |
Other |
|
主題 |
SBRT |
| 内容記述 |
|
|
内容記述 |
Purpose: To develop a novel biological dosimetric margin (BDM) and to create a biological conversion factor (BCF) that compensates for the difference between physical dosimetric margin (PDM) and BDM, which provides a novel scheme of a direct estimation of the BDM from the physical dose (PD) distribution. Methods: The offset to isocenter was applied in 1‐mm steps along left‐right (LR), anterior‐posterior (AP), and cranio‐caudal (CC) directions for 10 treatment plans of lung stereotactic body radiation therapy (SBRT) with a prescribed dose of 48 Gy. These plans were recalculated to biological equivalent dose (BED) by the linearquadratic model for the dose per fraction (DPF) of d = 3–20 Gy/fr and α/β= 3 - 10. BDM and PDM were defined so that the region that satisfied that the dose covering 95% (or 98%) of the clinical target volume was greater than or equal to the 90% of the prescribed PD and BED, respectively. An empirical formula of the BCF was created as a function of the DPF. Results: There was no significant difference between LR and AP directions for neither the PDM nor BDM. On the other hand, BDM and PDM in the CC direction were significantly larger than in the other directions. BCFs of D95% and D98% were derived for the transverse (LR and AP) and longitudinal (CC) directions. Conclusions: A novel scheme to directly estimate the BDM using the BCF was developed. This technique is expected to enable the BED‐based SBRT treatment planning using PD‐based treatment planning systems. |
|
言語 |
en |
| 出版者 |
|
|
出版者 |
American Association of Physicists in Medicine |
| 出版者 |
|
|
出版者 |
Wiley |
| 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 |
| 出版タイプ |
|
|
出版タイプ |
VoR |
|
出版タイプResource |
http://purl.org/coar/version/c_970fb48d4fbd8a85 |
| 関連情報 |
|
|
|
識別子タイプ |
DOI |
|
|
関連識別子 |
10.1002/acm2.12843 |
| 関連情報 |
|
|
|
識別子タイプ |
PMID |
|
|
関連識別子 |
32141684 |
| 関連情報 |
|
|
|
識別子タイプ |
DOI |
|
|
関連識別子 |
https://doi.org/10.1002/acm2.12843 |
| 収録物識別子 |
|
|
収録物識別子タイプ |
ISSN |
|
収録物識別子 |
1526-9914 |
| 開始ページ |
|
|
開始ページ |
31 |
| 書誌情報 |
Journal of Applied Clinical Medical Physics
Journal of Applied Clinical Medical Physics
巻 21,
号 4,
p. 31-41,
発行日 2020-04-20
|
| 旧ID |
50436 |
JApplClinMedPhys_21_31.pdf (1.3 MB)
