Lymph node PTV D98
-- CovP goal LN-PTV
Lymph node 1
Lymph node 2
V95Gy (%)
-- Goal
Bowel Vx cm
3
V40Gy
V50Gy
-- Soft constraint
V43Gy/PTV-volume
A
B
C
D
Conformity
PTV45 coverage
Dummy run EBRT