Table 1.

Depicts organ at risk (OAR) dose constraints as used in the stereotactic MR-guided adaptive radiation therapy (SMART) trial.

Organ at Risk	Dose Constraint
Stomach, duodenum, small bowel	V35 < 0.5 mL
	V40 < 0.03 mL
Large bowel	V38 < 0.5 mL
	V43 < 0.03 mL
Kidneys	Dmean < 10 Gy
Liver	Dmean < 15 Gy
Spinal cord	V25 < 0.03 mL