Gynae BT 2017

Imaging protocols MRI and CT Changes during EBRT and IGABT (Interaction)

Pretreatment CTV

Pretreatment PTV

CTV at CT scan 1 week after treatment start

Week 4

CTV motion and regression after 4 weeks

Repetitive Imaging and Repetitive Planning: T arget regression during treatment in the presence of organ motion and deformation can mitigate the need for a replan or … everything may happen if a small PTV margin is applied

Stewart et al. IJROBP 2010

Imaging protocols CT and MRI, JCA Dimopoulos, P Petrow, Prague, Czech Republic, 22.10.2017 - 26.10.2017