Table 2 Quality measures of the plans presented as examples
Prostate patient | ||||
|---|---|---|---|---|
Measures of quality | Standard IMRT plan | Version a/b, 6 MV | Version c, 6 MV | |
PTV | D2 (Gy) | 51.73 | 53.98 | 53.59 |
D50 (Gy) | 50.60 | 51.62 | 51.45 | |
D98 (Gy) | 48.13 | 45.59 | 44.97 | |
HI | 0.07 | 0.16 | 0.17 | |
Rectum | D2 (Gy) | 50.60 | 51.05 | 50.55 |
D30 (Gy) | 35.18 | 36.25 | 35.63 | |
D50 (Gy) | 24.94 | 21.61 | 19.93 | |
Bladder | D2 (Gy) | 51.28 | 52.69 | 52.63 |
D30 (Gy) | 48.97 | 43.06 | 43.12 | |
D50 (Gy) | 34.50 | 14.69 | 13.57 | |
Femoral head (right) | D2 (Gy) | 32.99 | 37.43 | 34.50 |
D30 (Gy) | 24.09 | 25.39 | 24.37 | |
D50 (Gy) | 20.49 | 18.46 | 18.13 | |
Head-and-neck patient | ||||
Measures of quality | Standard IMRT plan | 2 arcs FFF 7 MV (version c) | ||
PTV | D2 (Gy) | 54.47 | 53.32 | |
D50 (Gy) | 45.55 | 44.86 | ||
D98 (Gy) | 50.55 | 50.67 | ||
HI | 0.18 | 0.17 | ||
Right parotid | D2 (Gy) | 7.30 | 5.41 | |
D50 (Gy) | 48.37 | 51.82 | ||
Dmean (Gy) | 15.36 | 13.62 | ||
Spinal cord | D2 (Gy) | 21.28 | 21.28 | |
D50 (Gy) | 25.36 | 25.25 | ||
Dmean (Gy) | 19.77 | 19.30 | ||