SBRT2015

Previous Page

Next Page

Page Background

18

SBRT for re-irradiation

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

Re-irradiation for spinal metastases