Fig. 1

Typical dosimetric results obtained with accelerated partial breast irradiation using volumetric-modulated arc therapy on two patients: one right breast cancer (a) and one bilateral cancer (b). a (upper left) dose distribution in axial view, dose colorwash from 38.0 Gy to maximal dose at 45.3 Gy; (upper right) corresponding dose-volume histograms for this patient: planning target volume (PTV) in red, right breast minus 3 mm above the skin in blue, right breast in yellow, right lung in green, heart in purple, left lung in red; (lower left) dose distribution in coronal view, dose colorwash from 38.0 Gy to maximal dose at 45.3 Gy; (lower right) dose distribution in sagittal view, dose colorwash from 38.0 Gy to maximal dose at 45.3 Gy. b (upper left) dose distribution in axial view, dose colorwash from 40.0 Gy to maximal dose at 45.8 Gy; (upper right) corresponding DVH for this patient: left PTV in red, right PTV in purple, spinal cord in orange, heart in yellow, right lung in green, left lung in red; (lower left) dose distribution in coronal view, dose colorwash from 40.0 Gy to maximal dose at 45.8 Gy; (lower right) dose distribution in sagittal view, dose colorwash from 40.0 Gy to maximal dose at 45.8 Gy