Table 1 Organs at risk dose constraints for Stereotactic Body Radiation Therapy (SBRT) in LAPC patients as proposed by Bohoudi et al. [36] and Henke et al. [35]

Liver

V12Gy < 50%

700 cc < 20Gy (uninvolved liver)

V25Gy < 33%

Mean < 20Gy

Duodenum

V33Gy ≤ 1 cc

V25Gy < 20 cc

V35Gy ≤ 0.5 cc

Stomach

V33Gy ≤ 1 cc

V25Gy < 20 cc

V33Gy ≤ 0.5 cc

Bowel Bag

V33Gy ≤ 1 cc

V25Gy < 20 cc

V30Gy ≤ 0.5 cc (Small Bowel)

V35Gy ≤ 0.5 cc (Large Bowel)

Cord

N/A

V25Gy < 0.5 cc

Kidneys (combined)

V12Gy < 25%

Mean Dose <18Gy

Heart/Pericardium

N/A

V32Gy < 15 cc