Table 2.

Dose-volume starting constraints for OAR

Organ	Threshold dose (Gy)	Volume above starting limit (%)*
Bladder	30	80
	40	40
	0	59
Bladder-PTV	40	30
	0	45
Bowel	30	40
	40	30
	0	50
Bowel-PTV	40	20
	0	45
Genitalia/perineum	30	35-45
	40
	0	48
Iliac bone marrow	10	35-45
	20	25-30
	0	50
Femoral heads	45	5
	0	55

* objective minimize