ESTRO course Dose Modelling and Verification 2017

Total margin

=

Σ + = 2.5Σ + 1.64

In practice, the margin is determined with respect to the 95% isodose surface

Σ = Σ 2 + Σ 2 + Σ 2

95%

2 + 2 + 2 −

=

50%

Subtracted from margin

03/01/13