Image-Guided Radiotherapy and Chemotherapy in Gynaecological Cancer

PTV pathological lymph nodes

Assumption:

 Lymph nodes are in a relatively fixed relation to bony anatomy  Bony registration aligns pathological lymph node target Most often pathological lymph nodes shrink during RT

PTV (blue) GTV on 10 CBCT (red)

CBCT 1 st treatment

CBCT 24 th treatment

Anne Ramlov, Radiother Oncol. 2017 Apr;123(1):158-163