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KMID : 1038720130240040284
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Progress in Medical Physics
2013 Volume.24 No. 4 p.284 ~ p.289
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A Dosimetric Comparision of IMRT and VMAT in Synchronous Bilateral Breast Ca
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Kim Sung-Jin
Youn Seon-Min
Kim Sung-Kyun
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Abstract
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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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KEYWORD
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Bilateral breast cancer, IMRT, VMAT
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