|  |  | IMRT | VMAT | ||
---|---|---|---|---|---|---|
Parameter | Goal | FF | FFF | FF | FFF | |
SIB | V95% | > 95% | 93.7 ± 1.2 | 93.7 ± 1.3 | 94.5 ± 1.6 | 94.2 ± 1.9 |
HI |  | 0.15 ± 0.03 | 0.15 ± 0.03 | 0.14 ± 0.03 | 0.15 ± 0.04 | |
CI | > 0.7 | 0.83 ± 0.04 | 0.83 ± 0.04 | 0.87 ± 0.1 | 0.83 ± 0.05 | |
PTV - SIB | V95% | > 95% | 98.8 ± 0.3 | 99.0 ± 0.3 | 99.0 ± 0.3 | 98.9 ± 0.6 |
HI |  | 0.23 ± 0.02 | 0.22 ± 0.02 | 0.22 ± 0.03 | 0.24 ± 0.04 | |
PTV | CI | > 0.7 | 0.79 ± 0.03 | 0.78 ± 0.03 | 0.76 ± 0.03 | 0.76 ± 0.03 |
Spinal Cord | D1ccm | < 45 Gy | 31.7 ± 2.1 | 31.5 ± 1.7 | 32.2 ± 1.8 | 31.7 ± 1.4 |
Brain Stem | D1ccm | < 48 Gy | 34.6 ± 4.7 | 34.6 ± 5.0 | 39.5 ± 4.9 | 42.1 ± 4.5 |
Parotid Left | D50% | < 30 Gy | 29.0 ± 4.8 | 28.3 ± 5.2 | 29.2 ± 5.6 | 29.9 ± 6.2 |
Parotid Right | D50% | < 30 Gy | 30.5 ± 4.8 | 29.5 ± 4.4 | 29.7 ± 4.2 | 29.6 ± 4.3 |
Oral Cavity | V60% |  | 50.8 ± 15.6 | 51.8 ± 16.0 | 52.0 ± 15.2 | 54.0 ± 17.0 |