CPB Ljubljana 2018 course book

Target volumes concepts

CTV : GTV at time of brachytherapy In all cases includes: ➢ Whole cervix ➢ Presumed tumour extension in adjacent tissues ➢ Clinical assessment ➢ (Residual grey zones on MRI) HR

CTV

:

IR

GTV at time of diagnosis In all cases includes: ➢ HR-CTV ➢ integrates initial CTV SAFETY MARGINS : 1-1.5 cm cranially 0.5cm A/P 1cm laterally

NO SAFETY MARGINS

HR-CTV

IR-CTV

cervix

Initial tumour extension (at diagnosis)

Residual disease

10 mm