Table 1 Organ at risk (OAR) dose constraints applied for 40 Gy per five fractions in pancreatic SBRT Pancreatic clinical tumor volume (CTV) and planning target volume (PTV) of > 95% of 40 Gy in five fractions. (PTV = CTV)
From: Effect of stomach size on organs at risk in pancreatic stereotactic body radiotherapy
OAR | D0.1 cc | D5.0 cc | D10.0 cc | V12 Gy | V21 Gy | V30 Gy | V40 Gy |
|---|---|---|---|---|---|---|---|
Stomach | ≤ 22 Gy | ≤ 16 Gy | ≤ 12 cc | ≤ 5 cc | ≤ 1 cc | ||
Intestine | ≤ 22 Gy | ≤ 17 Gy | ≤ 11 Gy | ≤ 5 cc | ≤ 1 cc | ||
Pancreas | ≤ 50% | > 95% | |||||
Liver | Mean dose < 15 Gy | ||||||
Left kidney | Mean dose < 10 Gy | ||||||
Right kidney | Mean dose < 10 Gy | ||||||
Spinal cord | ≤ 22 Gy | ≤ 1 cc |