Prog Med Phys.
2013 Dec;24(4):284-289. 10.14316/pmp.2013.24.4.284.
A Dosimetric Comparision of IMRT and VMAT in Synchronous Bilateral Breast Cancer
- Affiliations
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- 1Department of Radiation Oncology, Eulji University Hospital, Daejeon, Korea.
- 2Department of Physics, Yeungnam University, Daegu, Korea.
- 3Department of Radiation Oncology, College of Medicine, Yeungnam University, Daegu, Korea. skkim3@ynu.ac.kr
- KMID: 1910571
- DOI: http://doi.org/10.14316/pmp.2013.24.4.284
Abstract
- A study was performed comparing dosimetric characteristics of volumetric modulated arc and intensity modulated radiatio therapy on patients with bilateral breast cancer. For 5 patients, 3 plans were made for each patient; IMRT beams 8 and 12 of the beam intensity modulated radiation therapy, volumetric modulated arc therapy plan. The average PTVs volumes and D98 for 12-IMRT were 51.04+/-0.57 Gy (right), 50.80+/-1.07 Gy (left), 42.94+/-16.16 Gy (right), 42.56+/-2.09 Gy (left). HI (D5~D95) and CI90,95, even 12-IMRT has shown excellent results. In OAR, 3 plans showed excellent results. But the lowest dose of 12-IMRT. 12-IMRT achieved similar PTV coverage and sparing of organs at risk than 8-IMRT and VMAT.
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