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The evolution of radiotherapy
1960 1970 1980
1990
2000
2010
First Linac
Image fusion Computer based
CT planning
IMRT
Particles MRI-Linac
Standard collimation
Multi-leaf collimation
CBCT
Volumetric arc
therapy
SBRT
Aim to increase conformity and reduce toxicity through anatomical accuracy
i.e. dose to the target avoiding critical structures
b)