Advanced Physics for Brachytherapy 2018

Imaging modalities for brachy planning MRI Gold standard for most pelvic sites (T2) 3D image acquisition techniques with good resolution in all planes (isotropic 1 mm voxel size possible!) Functional MRI possible ( specific QA/QC must be implemented)  Must have compatible catheters and applicators No electron density (might not be an issue for high energy brachytherapy, 192 Ir and over (1% deviation Kirisits 2013 )) Potential distortions Potential patient motion between or during sequences 

Adapted from L. Beaulieu ABP ESTRO Course 2016