Gynae BT 2017

Background

Tolerance of normal pelvic structures Limiting factor

Applying the dose to the target volume

BRACHY*

EBRT*

Week 1 Week 2 Week 3 Week 4

Week 7

Week 5

Week 6

45 Gy

40-45 Gy (D90)

Inhomogeneous!

*Example: Treatment schedule outline; cervix cancer. Inst of Oncol Ljubljana (biologically equivalent doses!, LQ model)