Improved treatment robustness of postoperative breast cancer radiotherapy including supraclavicular nodes
A combination of a three-dimensional conformal radiation therapy (3D-CRT) plan with a dose gradient of the chest wall area and a volumetric modulated arc therapy (VMAT) plan of the supraclavicular area might improve the dose distribution robustness in the junction. To investigate the impact of patie...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
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Elsevier
2022-07-01
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| Series: | Physics and Imaging in Radiation Oncology |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2405631622000732 |
| _version_ | 1811276996905271296 |
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| author | Hideharu Miura Yoshiko Doi Minoru Nakao Shuichi Ozawa Masahiro Kenjo Yasushi Nagata |
| author_facet | Hideharu Miura Yoshiko Doi Minoru Nakao Shuichi Ozawa Masahiro Kenjo Yasushi Nagata |
| author_sort | Hideharu Miura |
| collection | DOAJ |
| description | A combination of a three-dimensional conformal radiation therapy (3D-CRT) plan with a dose gradient of the chest wall area and a volumetric modulated arc therapy (VMAT) plan of the supraclavicular area might improve the dose distribution robustness in the junction. To investigate the impact of patient motion on the dose distribution, hybrid 3D-CRT and VMAT plans were recalculated by shifting the isocenter of the VMAT plan. Compared to the nominal plan, the target D98% for high- vs low-dose gradients decreased by 24% vs 12%. Hybrid VMAT with a low-dose gradient 3D-CRT plan was found to be robust towards patient motion. |
| first_indexed | 2024-04-13T00:07:41Z |
| format | Article |
| id | doaj.art-280d8fc7a9be475d868646e668776842 |
| institution | Directory Open Access Journal |
| issn | 2405-6316 |
| language | English |
| last_indexed | 2024-04-13T00:07:41Z |
| publishDate | 2022-07-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Physics and Imaging in Radiation Oncology |
| spelling | doaj.art-280d8fc7a9be475d868646e6687768422022-12-22T03:11:10ZengElsevierPhysics and Imaging in Radiation Oncology2405-63162022-07-0123153156Improved treatment robustness of postoperative breast cancer radiotherapy including supraclavicular nodesHideharu Miura0Yoshiko Doi1Minoru Nakao2Shuichi Ozawa3Masahiro Kenjo4Yasushi Nagata5Hiroshima High-Precision Radiotherapy Cancer Center, 3-2-2, Futabanosato, Higashi-ku Hiroshima 732-0057, Japan; Department of Radiation Oncology, Institute of Biomedical & Health Sciences, Hiroshima University, 1-2-3 Kasumi Minami-ku Hiroshima-shi, Hiroshima 734-8553, Japan; Corresponding author.Hiroshima High-Precision Radiotherapy Cancer Center, 3-2-2, Futabanosato, Higashi-ku Hiroshima 732-0057, Japan; Department of Radiation Oncology, Institute of Biomedical & Health Sciences, Hiroshima University, 1-2-3 Kasumi Minami-ku Hiroshima-shi, Hiroshima 734-8553, JapanHiroshima High-Precision Radiotherapy Cancer Center, 3-2-2, Futabanosato, Higashi-ku Hiroshima 732-0057, Japan; Department of Radiation Oncology, Institute of Biomedical & Health Sciences, Hiroshima University, 1-2-3 Kasumi Minami-ku Hiroshima-shi, Hiroshima 734-8553, JapanHiroshima High-Precision Radiotherapy Cancer Center, 3-2-2, Futabanosato, Higashi-ku Hiroshima 732-0057, Japan; Department of Radiation Oncology, Institute of Biomedical & Health Sciences, Hiroshima University, 1-2-3 Kasumi Minami-ku Hiroshima-shi, Hiroshima 734-8553, JapanHiroshima High-Precision Radiotherapy Cancer Center, 3-2-2, Futabanosato, Higashi-ku Hiroshima 732-0057, Japan; Department of Radiation Oncology, Institute of Biomedical & Health Sciences, Hiroshima University, 1-2-3 Kasumi Minami-ku Hiroshima-shi, Hiroshima 734-8553, JapanHiroshima High-Precision Radiotherapy Cancer Center, 3-2-2, Futabanosato, Higashi-ku Hiroshima 732-0057, Japan; Department of Radiation Oncology, Institute of Biomedical & Health Sciences, Hiroshima University, 1-2-3 Kasumi Minami-ku Hiroshima-shi, Hiroshima 734-8553, JapanA combination of a three-dimensional conformal radiation therapy (3D-CRT) plan with a dose gradient of the chest wall area and a volumetric modulated arc therapy (VMAT) plan of the supraclavicular area might improve the dose distribution robustness in the junction. To investigate the impact of patient motion on the dose distribution, hybrid 3D-CRT and VMAT plans were recalculated by shifting the isocenter of the VMAT plan. Compared to the nominal plan, the target D98% for high- vs low-dose gradients decreased by 24% vs 12%. Hybrid VMAT with a low-dose gradient 3D-CRT plan was found to be robust towards patient motion.http://www.sciencedirect.com/science/article/pii/S2405631622000732Breast cancerHybrid-VMATJunction regionPatient motionPlan robustness |
| spellingShingle | Hideharu Miura Yoshiko Doi Minoru Nakao Shuichi Ozawa Masahiro Kenjo Yasushi Nagata Improved treatment robustness of postoperative breast cancer radiotherapy including supraclavicular nodes Physics and Imaging in Radiation Oncology Breast cancer Hybrid-VMAT Junction region Patient motion Plan robustness |
| title | Improved treatment robustness of postoperative breast cancer radiotherapy including supraclavicular nodes |
| title_full | Improved treatment robustness of postoperative breast cancer radiotherapy including supraclavicular nodes |
| title_fullStr | Improved treatment robustness of postoperative breast cancer radiotherapy including supraclavicular nodes |
| title_full_unstemmed | Improved treatment robustness of postoperative breast cancer radiotherapy including supraclavicular nodes |
| title_short | Improved treatment robustness of postoperative breast cancer radiotherapy including supraclavicular nodes |
| title_sort | improved treatment robustness of postoperative breast cancer radiotherapy including supraclavicular nodes |
| topic | Breast cancer Hybrid-VMAT Junction region Patient motion Plan robustness |
| url | http://www.sciencedirect.com/science/article/pii/S2405631622000732 |
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