Gynae BT 2017

Intro

Mission

Concept

Solution

Practice

Limitations of the EQD2 model for BT

➢ Chemotherapy is not taken into account

➢ Uncertainty increases for single fraction dose values >10Gy

➢ Only cell repair is considered

➢ / values and T

1/2 are under discussion (E.g. tumour type prostate, OAR etc.)

➢ Overall uncertainty of the biological dose calculation (values) in the range of ~10% -> Reasonable rounding of values