983 / 1708
Regions of interest (ROI)
Target volumes
Definition
Mean dice
coefficient
GTV
1
Initial extent of the disease
GTV
2
Initial
extent of bony disease but
postchemotherapy extent for soft tissue
disease extending into the pelvis
CTV
1
GTV
1
+1.0 cm
CTV
2
GTV
2
+1.0 cm
Use
MRI
to identify extent of bony and soft tissue disease