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Initial planning constraints
| Structure | Dose |
|---|---|
| Planning target volume | Dmin ≥ 95% prescribed dose |
| Dmax ≤ 110% prescribed dose | |
| Kidneys | V20 < 50% |
| Liver | V30 < 33% |
| Stomach | V45 < 15%, V50 < 5% |
| Small bowel | V45 < 15%, V50 < 5% |
| Duodenum | V45 < 33%, V50 < 5% |
| Spinal cord | Dmax < 45 Gy |
Dmin = minimum dose to the organ; Dmax = maximum dose to the organ; Vx = volume of the organ at risk receiving a dose greater than x Gy.
