2017_IGRT course book

Margin Example

No Correction

Offline Bone

Online Soft-tissue

S s S s A

Setup

3 mm 0 mm 0 mm

3 mm 3 mm 0 mm

Organ

4 mm 4 mm 1 mm

4 mm 4 mm 2 mm

Breathing

15 mm 15 mm 0 mm a 15 mm 15 mm 15 mm

Margin

23 mm 21 mm 6 mm