Advanced Physics for Brachytherapy 2018

BRT versus EBRT Similarities and Differences

• Verification We mean the process of proof that we deliver the dose we planned to the tissue (3D) within a specific accuracy and precision level. • BRT (HDR) In opposite to EBRT our dose delivery system (stepping source within implanted catheters) depends on the specific patient implant geometry (anatomy ) . This is not the case for EBRT, where the performance of the dose delivery system itself (MLC, Dose Rate, Energy, Gantry Angle, Collimator Angle & Couch Settings) is independent of the specific patient.