Table 1 Treatment plan comparison for patient I, II, III and IV.
Patient I | |||||||||
|---|---|---|---|---|---|---|---|---|---|
IMRT | s4°150s | d4°300s | d2°300s | d6°300s | d4°200s | d4°400s | Goal | ||
D 95% | 58.2 | 56.6 | 57.9 | 57.7 | 57.4 | 58.0 | 57.6 | 57.0 | |
PTV | D 5% | 61.4 | 62.3 | 61.8 | 62.1 | 62.1 | 61.6 | 62.5 | 64.2 |
H | 5.3 | 9.5 | 6.5 | 7.3 | 7.8 | 6.0 | 8.2 | lower | |
CI (%) | 0.98 | 0.94 | 0.98 | 0.97 | 0.96 | 0.98 | 0.98 | 1.0 | |
Parotid le | D 50% | 23.6 | 21.7 | 20.4 | 20.0 | 20.1 | 19.7 | 17.0 | 28 |
Parotid ri | D 50% | 22.5 | 20.4 | 19.0 | 20.1 | 19.2 | 18.9 | 17.1 | 28 |
Brain stem | D 1ccm | 43.2 | 44.5 | 44.1 | 42.6 | 42.9 | 44.4 | 44.3 | 50 |
Spinal cord | D 1ccm | 46.4 | 50.9 | 44.1 | 43.7 | 45.0 | 44.1 | 44.0 | 48 |
MU | 591.7 | 458.6 | 711.5 | 725.8 | 632.2 | 678.4 | 711.8 | lower | |
treat. time (s) | 686 | 116 | 200 | 222 | 225 | 235 | 207 | lower | |
Patient II | |||||||||
D 95% | 54.2 | 53.2 | 53.9 | 53.7 | 54.0 | 52.9 | 53.9 | 53.5 | |
PTV | D 5% | 57.9 | 58.4 | 58.1 | 58.9 | 58.0 | 58.2 | 59.3 | 60.2 |
H | 6.8 | 9.3 | 7.5 | 9.4 | 7.2 | 9.4 | 9.6 | lower | |
CI (%) | 0.97 | 0.94 | 0.97 | 0.95 | 0.97 | 0.92 | 0.97 | 1.0 | |
Parotid le | D 50% | 12.4 | 10.8 | 12.1 | 15.1 | 12.2 | 13.7 | 12.4 | 23 |
Parotid ri | D 50% | 10.7 | 17.3 | 11.3 | 16.1 | 11.5 | 13.7 | 11.4 | 23 |
Brain stem | D 1ccm | 33.6 | 30.9 | 29.7 | 31.9 | 30.8 | 37.9 | 30.1 | 41 |
Spinal cord | D 1ccm | 35.7 | 37.5 | 35.8 | 33.8 | 35.5 | 36.0 | 35.6 | 40 |
MU | 648.9 | 581.2 | 600.8 | 608.9 | 565.6 | 638.2 | 607.6 | lower | |
treat. time (s) | 729 | 120 | 225 | 264 | 227 | 279 | 248 | lower | |
Patient III | |||||||||
D 95% | 51.5 | 51.2 | 51.6 | 50.5 | 51.3 | 52.0 | 51.4 | 51.3 | |
PTV | D 5% | 55.5 | 55.9 | 55.4 | 56.0 | 55.7 | 55.3 | 55.3 | 57.8 |
H | 7.4 | 8.7 | 6.9 | 10.2 | 8.1 | 6.2 | 7.2 | lower | |
CI (%) | 0.96 | 0.95 | 0.96 | 0.92 | 0.95 | 0.97 | 0.95 | 1.0 | |
Parotid le | D 50% | 28.0 | 27.7 | 27.2 | 26.1 | 26.2 | 27.2 | 26.4 | 24 |
Parotid ri | D 50% | 27.0 | 24.7 | 24.1 | 24.0 | 24.5 | 23.5 | 24.5 | 24 |
Brain stem | D 1ccm | 36.5 | 35.6 | 31.9 | 38.2 | 31.9 | 31.5 | 31.6 | 43 |
Spinal cord | D 1ccm | 40.7 | 40.8 | 39.3 | 42.0 | 39.1 | 38.6 | 39.2 | 41 |
MU | 596.1 | 515.6 | 584.1 | 664.2 | 556.4 | 589.2 | 618.8 | lower | |
treat. time (s) | 753 | 115 | 225 | 303 | 213 | 240 | 246 | lower | |
Patient IV | |||||||||
D 95% | 51.5 | 49.7 | 49.8 | 46.4 | 51.1 | 51.0 | 50.8 | 51.3 | |
PTV | D 5% | 55.4 | 56.5 | 55.9 | 59.8 | 58.0 | 55.6 | 56.1 | 57.8 |
H | 7.2 | 12.6 | 11.3 | 24.8 | 12.8 | 8.5 | 9.8 | lower | |
CI (%) | 0.95 | 0.90 | 0.92 | 0.74 | 0.94 | 0.94 | 0.93 | 1.0 | |
Spinal cord | D 1ccm | 8.8 | 16.2 | 13.6 | 15.4 | 16.3 | 14.5 | 13.1 | 48 |
Brain stem | D 1ccm | 43.0 | 51.4 | 36.6 | 34.5 | 38.4 | 36.8 | 37.3 | 50 |
Optic nerve le | D 1ccm | 54.0 | 53.2 | 53.8 | 49.5 | 53.3 | 52.8 | 52.5 | 55 |
Optic nerve ri | D 1ccm | 53.1 | 50.4 | 53.0 | 49.1 | 52.1 | 51.5 | 51.8 | 55 |
Chiasm | D 1ccm | 29.5 | 30.2 | 27.2 | 27.5 | 25.5 | 24.9 | 25.5 | 50 |
Bulbus oculi le | D med | 17.0 | 17.3 | 14.9 | 14.2 | 14.0 | 14.3 | 13.7 | 20 |
Bulbus oculi ri | D med | 18.9 | 13.1 | 13.5 | 13.8 | 12.5 | 13.0 | 12.5 | 20 |
MU | 464.9 | 409.8 | 462.5 | 598.4 | 445.0 | 477.7 | 450.9 | lower | |
treat. time (s) | 641 | 96 | 143 | 223 | 154 | 153 | 139 | lower |