Abstract
Accelerated partial breast Irradiation (APBI) is one of the treatment modalities available for irradiating breast cancer patients. In these patients, irradiation could be delivered through HDR brachytherapy applicators/balloons such as Strut adjusted volume implant (SAVI), Contura balloons and Best Balloons. The applicator is surgically implanted in the patients after lumpactomy. Normally, in these patients the planning target volume (PTV) is defined as 1 cm expansion around the applicator. This volume excludes skin surface and ribs. Some of the patients have prosthesis in the breast and therefore the treatment volume is different than the patients without Prosthesis. Therefore, we are assessing the treatment technique with prosthesis included or excluded from the planning volume (PTV_Eval). Moreover, the impact of this selection on dose distribution of other organs such as skin and ribs have been evaluated.
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