Table 1 Summary of DVH analysis for PTV_A, PTV_Pelvis and healhty tissue.
| Â | Objective | IMRT6 | IMRT15 | RA15 | RA6 | p |
|---|---|---|---|---|---|---|
|  |  |  |  | PTV_WAR (6524 ± 861 cm3) |  | |
Mean [Gy] | 25.0 Gy | 26.8 ± 0.5 | 24.8 ± 0.9 | 25.5 ± 0.5 | 26.2 ± 0.7 | a,c,d |
EUD [Gy] | - | 25.9 ± 0.4 | 24.0 ± 1.0 | 25.0 ± 0.3 | 25.6 ± 0.7 | a,c,d |
D 2% [Gy] | Minimise | 35.1 ± 1.4 | 32.9 ± 2.7 | 31.5 ± 2.2 | 33.2 ± 2.6 | a,b,c,d |
U 5-95% | Minimise | 0.34 ± 0.05 | 0.32 ± 0.06 | 0.26 ± 0.04 | 0.30 ± 0.03 | a,b,d |
D 98% [Gy] | > 22.5 Gy | 22.3 ± 0.5 | 20.7 ± 1.4 | 21.9 ± 0.4 | 22.1 ± 0.9 | a,c |
V 90% [%] | > 95% | 99.0 ± 0.6 | 93.4 ± 7.3 | 98.6 ± 0.9 | 98.4 ± 1.7 | a,b,c |
V 95% [%] | - | 95.6 ± 1.6 | 89.5 ± 12.0 | 92.7 ± 2.4 | 94.1 ± 5.0 | a,b,c,d |
V 107% [%] | Minimize | 36.3 ± 7.7 | 13.7 ± 7.7 | 17.6 ± 8.2 | 20.1 ± 11.6 | a,b,c,d |
|  |  |  |  | PTV_Pelvis (1211 ± 158 cm3) |  | |
Mean [Gy] | 45.0 Gy | 45.0 ± 0.0 | 45.0 ± 0.0 | 45.0 ± 0.0 | 45.0 ± 0.0 | - |
EUD [Gy] | - | 44.0 ± 1.6 | 44.0 ± 1.5 | 43.9 ± 1.6 | 44.0V1.9 | NS |
D 2% [Gy] | < 47.3 Gy | 47.6 ± 0.5 | 47.3 ± 0.4 | 47.5 ± 0.3 | 47.5 ± 0.2 | NS |
U 5-95% | Minimise | 0.1 ± 0.02 | 0.10 ± 0.01 | 0.10 ± 0.02 | 0.10 ± 0.02 | NS |
D 98% [Gy] | > 40.5 Gy | 42.2 ± 0.4 | 42.1 ± 0.5 | 41.7 ± 0.5 | 41.7 ± 0.2 | NS |
V 90% [%] | > 95% | 99.8 ± 0.2 | 99.7 ± 0.4 | 99.5 ± 0.3 | 99.5 ± 0.2 | NS |
V 95% [%] | - | 95.4 ± 1.9 | 95.2 ± 2.3 | 94.0 ± 2.1 | 94.2 ± 1.1 | NS |
V 107% [%] | < 2% | 0.7 ± 0.9 | 0.3 ± 0.6 | 0.5 ± 0.6 | 0.5 ± 0.6 | NS |
CI 95% | minimise | 1.60 ± 0.1 | 1.51 ± 0.1 | 1.50 ± 0.1 | 1.50 ± 0.1 | NS |
|  |  |  |  | Healthy tissue (25772 ± 7089 cm3) |  | |
Mean [Gy] | - | 19.6 ± 2.1 | 17.6 ± 1.3 | 17.6 ± 1.5 | 18.6 ± 1.6 | b,c |
V 10 Gy [%] | - | 75.0 ± 6.7 | 71.1 ± 5.4 | 70.4 ± 5.1 | 72.8 ± 5.5 | b,c |
DoseInt [Gy cm 3 10 6 ] | - | 4.94 ± 0.90 | 4.48 ± 1.00 | 4.48 ± 0.92 | 4.74 ± 1.02 | b.c |