paediatrics Brussels 17

Regions of interest (ROI)

Use MRI to identify extent of bony and soft tissue disease

Mean dice coefficient

Target volumes

Definition

GTV

Initial extent of the disease

1

Initial extent of bony disease but postchemotherapy extent for soft tissue disease extending into the pelvis

GTV

2

CTV

GTV

+1.0 cm

1

1

CTV

GTV

+1.0 cm

2

2