Imaging for early stage breast cancer

Intracavitary hybrid devices (ClearPath, SAVI)

sources are close to the target volume

6 – 10 channels – lots of dwell positions

non-spherical target volume

asymmetric margin

large dose inhomogeneity in target

steep dose gradient at edges

high dose modulation potential

Scanderberg et al. J Appl Clin Med Phys 11(1):3021. 2009