SBRT2015

Re-irradiation for spinal metastases

Spinal cord tolerance – reirradiation: Animal studies

26 minipigs, uniform 30Gy in 10 Fx Reirradiation after 1 year: − Inhomogeneous (10-90%) SRS − 14.9Gy – 25.4Gy  ED 50 of 19.7Gy  Identical SRS tolerance as in the primary situation  Full recovery of 30Gy in 10 Fx within 1 year

Medin IJROBP 2011

SBRT for re-irradiation

18