Table 2.
Mean TT, MU-number, CI and HI for the three planning systems
| 3D-CRT | VMAT '2Rot' | IMRT (MC Hyperion) | IMRT (PB Hyperion) | IMRT (PB Corvus) | |
| HI | 1.06 ± 0.02 | 1.11 ± 0.02 | 1.11 ± 0.08 | 1.10 ± 0.02 | 1.15 ± 0.03 |
| CI | 2.00 ± 0.16 | 1.39 ± 0.09 | 1.30 ± 0.02 | 1.26 ± 0.05 | 1.33 ± 0.21 |
| MU | 225 ± 11 | 268 ± 19 | 748 ± 193 | 477 ± 84 | 1260 ± 172 |
| TT | 220s | 290s | 610s | 570s | 575s |
| VTissue 10% PD | 10739 cm3 ≡ 48.8% | 10463 cm3 ≡ 47.6% | 10806 cm3 ≡ 48.1% | 10347 cm3 ≡ 46.0% | 10591 cm3 ≡ 47.5% |
| VTissue 30% PD | 8187 cm3 ≡ 37.3% | 7674 cm3 ≡ 34.9% | 7593 cm3 ≡ 33.8% | 7199 cm3 ≡ 32.0% | 7874 cm3 ≡ 35.3% |
| VTissue 50% PD | 6052 cm3 ≡ 27.6% | 5089 cm3 ≡ 23.1% | 4203 cm3 ≡ 18.7% | 3971 cm3 ≡ 17.7% | 5186 cm3 ≡ 23.2% |
| VTissue 70% PD | 3428 cm3 ≡ 15.6% | 2734 cm3 ≡ 12.4% | 1939 cm3 ≡ 8.6% | 1933 cm3 ≡ 8.6% | 2612 cm3 ≡ 11.7% |
| VTissue 95% PD | 982 cm3 ≡ 4.5% | 208 cm3 ≡ 0.9% | 14 cm3 ≡ 0.0% | 0 cm3 ≡ 0.0% | 53 cm3 ≡ 0.2% |
| D95% Vol Tissue | 1.97 Gy ≡ 5.46% | 0.75 Gy ≡ 2.09% | 0.35 Gy ≡ 0.98% | 0.31 Gy ≡ 0.85% | 0.52 Gy ≡ 1.45% |
| D95% Vol PTV | 34.09 Gy ≡ 94.7% | 33.84 Gy ≡ 94% | 33.05 Gy ≡ 91.8% | 32.95 Gy ≡ 91.54% | 32.33 Gy ≡ 89.8% |