If I deliver a uniform dose of photons RT
•
I care about:
Prescribed dose
•
I care about:
voxel by voxel dose
•
I never care
(at least as a first approximation)
Number of fields ; IMRT vs. 3D-CRT ; 5 MeV vs. 18 MeV
Target shape; Target depth; Flattening filter
If I deliver a Non uniform dose of
photons RT