Advanced Physics for Brachytherapy 2018

Monte Carlo for TPS? ➢ recent efforts in the literature have focused on GUI functionality and further optimization for brachytherapy specific use : ✓ egs_brachy (EGSnrc): Chamberland et al 2016 Phys. Med. Biol. 61 8214

• 3868cm 3 water breast model with 30 192 Ir HDR source implant: 2mm 3 scoring in 4cm 3 region with 2% PTV type A uncert. takes 147 s (151 s) • 13548cm 3 inhomogeneous breast model with 79 192 Ir HDR source implant: 2x2x3mm 3 scoring in 34x34x12cm 3 region takes 102 s (119 s) for 2% PTV type A uncert. and 222 s (238 s) for 2% PTV and 5% skin type A uncert. (single 2.5 GHz Intel Xeon E5-2680 v3)