Table 1.
Dose constraints for radiotherapy plans
| Dose Constraints | |
|---|---|
| Dose-volume constraints | |
| PTV1 (50 Gy) | V95% (47.5 Gy) > 95 % |
| Dmax (0.1 cc) < 107 % (53.5 Gy) | |
| PTV2 (60 Gy) | V95% (57 Gy) > 95 % |
| Dmax (0.1 cc) < 107 % (64.2 Gy) | |
| Lung | Mean dose < 20 Gy |
| V20Gy < 25 % | |
| Heart | Mean dose < 25 Gy |
| V30Gy < 45 %a | |
| V40Gy < 30 %b | |
| CordPRV | Dmax (0.1 cc) < 40 Gy (45 Gy permitted) |
| Liver | V30Gy < 60 % |
| Individual Kidneys | V20Gy < 25 % |
| StomachInc | Max dose < 60Gy |
| StomachOutc | Max dose < 45Gy |
aApplies only to 50GyRA and 60GyRA plans
bApplies only to 50Gy3D plans
cApplies only to 60GyRA plans