Hybrid volumetric modulated arc therapy for whole breast irradiation: a dosimetric comparison of different arc designs
| Autor: | Chandrasekaran Anu Radha, V. Ramasubramanian, Karunakaran Balaji, Krishnamoorthi Sathiya, Sitaraman Balaji Subramanian, Moorthi Thirunavukarasu |
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| Rok vydání: | 2019 |
| Předmět: |
Adult
Organs at Risk medicine.medical_treatment Breast Neoplasms 030218 nuclear medicine & medical imaging Arc (geometry) 03 medical and health sciences 0302 clinical medicine Breast cancer Whole Breast Irradiation medicine Humans Radiology Nuclear Medicine and imaging Whole breast Radiometry Aged business.industry Radiotherapy Planning Computer-Assisted Ultrasound General Medicine Middle Aged medicine.disease Volumetric modulated arc therapy Radiation therapy Conformity index Treatment Outcome 030220 oncology & carcinogenesis Female Radiotherapy Intensity-Modulated Nuclear medicine business |
| Zdroj: | La radiologia medica. 124:546-554 |
| ISSN: | 1826-6983 0033-8362 |
| DOI: | 10.1007/s11547-019-00994-1 |
| Popis: | To find an optimal arc design for hybrid volumetric modulated arc therapy (H-VMAT), a combination of conventional 3DCRT and VMAT plans for left-sided whole breast radiation therapy. A total of 26 left-sided early-stage breast cancer patients were selected for this study. To find the superior plan, H-VMAT with three different arc designs including, two partial arcs (2A), four partial arcs (4A) and four tangential arcs (TA) were created for each study case by combining 3DCRT and VMAT with 75% 3DCRT/25% VMAT dose proportion of prescription dose. All H-VMAT plans achieved the expected target coverage. A higher conformity index and homogeneity index were achieved for 2A and 4A H-VMAT plans and significantly differ from TA H-VMAT (p |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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