Advanced Brachytherapy Physics - Vienna 2016

Modern Brachytherapy Treatment Planning Catheters/Applicators (Sources) Localisation In general there are exist two methods for the Localisation of the sources/ possible source dwell positions. Source Path Method Here the “finger-print” of the individual implanted catheters/ applicators on the acquired images is utilized (interstitial implants, endoluminal and simple endocavitary applicators) 3D-Applicator Model Method Here the 3D Applicator geometry (rigid) is preexisting and stored as a “3D-Object” including all required information for generation of sources/source dwell positions (source paths, all possible source dwell positions and channel length for each path, …) “3D-Object” source dwell positions

GEC-ESTRO Recommendations, Hellebust T., Kirisits, C., Berger, D., et al., Rad Oncol 95, 153-160, 2010.