L0_2016_Athens_Physics_Programme

ICRU 50 – 62 Optimization parameters

Parameter

Definition

Treated Volume

(TV)

Volume enclosed by a high

isodose envelope (95% or 98%)

Irradiated volume

(IV)

Volume enclosed by a significant

isodose envelope (20% - 50%)

2016/Athens

Conformity index

(CI)

CI = TV / PTV