| Item type |
itemtype_ver1(1) |
| 公開日 |
2022-11-14 |
| タイトル |
|
|
タイトル |
Evaluation of the clinical implementation of a tattoo-free positioning technique in breast cancer radiotherapy using ExacTrac |
|
言語 |
en |
| 著者 |
Shimizu-Niwa, Maiko
Suzuki, Junzi
Matsunaga, Takuma
Komori, Masataka
|
| 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 |
|
|
言語 |
en |
|
権利情報 |
© 2022. This manuscript version is made available under the CC-BY-NC-ND 4.0 license http://creativecommons.org/licenses/by-nc-nd/4.0/ |
| キーワード |
|
|
主題Scheme |
Other |
|
主題 |
Motion management |
| キーワード |
|
|
主題Scheme |
Other |
|
主題 |
Patient positioning |
| キーワード |
|
|
主題Scheme |
Other |
|
主題 |
Breast cancer |
| キーワード |
|
|
主題Scheme |
Other |
|
主題 |
ExacTrac |
| 内容記述 |
|
|
内容記述タイプ |
Abstract |
|
内容記述 |
Purpose: Conventionally, tattoos and temporary skin marks are used in patient positioning procedures for breast cancer radiotherapy. However, many patients dislike these marks because their daily lives are affected by them. Therefore, we developed a new positioning technique using ExacTrac (BrainLAB AG, Munich, Germany). This study aimed to evaluate the clinical implementation of a tattoo-free positioning technique for breast cancer radiotherapy using ExacTrac. Methods: We included 35 patients with breast cancer, 14 with tattoo-based positioning and 21 with tattoo-free positioning using ExacTrac. In this ExacTrac-based positioning technique, the patients were aligned around the mamilla of the ipsilateral breast, and 6D registration was performed later at the virtual isocenter, which was placed at the spinal cord. The target displacement relative to the treatment isocenter was identified and then compensated for using robotic couch translations and rotations. The gamma index method analyzes the integrated dose images of the transmitted radiation dose through patients to investigate the irradiation accuracy of the two positioning techniques. The clinical implementation of the ExacTrac-based positioning technique was evaluated by comparing the gamma passing rate of the tattoo-based and ExacTrac-based positioning techniques. Results: The mean gamma passing rates of the tattoo-based and ExacTrac-based positioning techniques were 86.0 ± 10.2% and 90.9 ± 6.9%, respectively. Conclusion: The ExacTrac-based positioning technique provided positioning comparable to that of the tattoo-based positioning technique. Consequently, the clinical implementation of the tattoo-free positioning technique in breast cancer radiotherapy using ExacTrac was demonstrated. |
|
言語 |
en |
| 出版者 |
|
|
出版者 |
Elsevier |
|
言語 |
en |
| 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 |
AM |
|
出版タイプResource |
http://purl.org/coar/version/c_ab4af688f83e57aa |
| 関連情報 |
|
|
関連タイプ |
isVersionOf |
|
|
識別子タイプ |
DOI |
|
|
関連識別子 |
https://doi.org/10.1016/j.ejmp.2022.04.014 |
| 収録物識別子 |
|
|
収録物識別子タイプ |
PISSN |
|
収録物識別子 |
11201797 |
| 書誌情報 |
en : Physica Medica
巻 98,
p. 81-87,
発行日 2022-06
|
| ファイル公開日 |
|
|
日付 |
2023-06-01 |
|
日付タイプ |
Available |
Manuscript_R3.pdf (701 KB)
