Table 2.
Dosimetric parameters and plan complexity for each knowledge-based treatment planning model and clinical plan.
| Parameter | CP | KBPORIG | KBPC-DVH | KBPC-REG | KBPC-ALL | |
|---|---|---|---|---|---|---|
| PTV-R | Dmax (%) | 106.63±1.31 | 105.61±0.50 | 105.77±0.93 | 105.63±0.54 | 105.66±0.69 |
| Dmin (%) | 91.90±2.74 | 91.54±1.67 | 91.58±1.87 | 91.76±1.64 | 91.53±1.60 | |
| Dmean (%) | 102.30±0.66 | 102.01±0.31 | 102.09±0.36 | 102.08±0.27 | 102.06±0.29 | |
| HI | 0.053±0.013 | 0.047±0.003 | 0.048±0.006 | 0.047±0.004 | 0.047±0.004 | |
| CI95 | 1.28±0.065 | 1.19±0.025 | 1.18±0.024 | 1.19±0.025 | 1.19±0.023 | |
| Rectal wall | V40 Gy (%) | 48.95±6.38 | 49.24±4.94 | 49.35±3.96 | 50.51±4.94 | 50.05±5.28 |
| V60 Gy (%) | 26.90±4.32 | 27.62±4.32 | 27.58±3.94 | 27.85±4.69 | 27.52±4.54 | |
| V70 Gy (%) | 15.00±3.49 | 15.94±2.25 | 15.86±2.15 | 15.69±2.80 | 15.61±2.33 | |
| V78 Gy (%) | 0.07±0.17 | 0.35±0.29 | 0.44±0.47 | 0.33±0.36 | 0.29±0.24 | |
| Bladder wall | V40 Gy (%) | 38.56±10.80 | 38.34±14.38 | 37.91±13.38 | 38.36±13.75 | 38.23±13.71 |
| V70 Gy (%) | 21.00±6.40 | 20.47±6.19 | 20.29±7.23 | 20.39±7.29 | 20.31±7.38 | |
| MU | 619.20±60.88 | 621.26±24.77 | 625.26±37.90 | 619.41±30.28 | 625.11±26.92 | |
| MCS | 0.27±0.022 | 0.27±0.015 | 0.27±0.020 | 0.27±0.017 | 0.27±0.018 |
Results are expressed as means±1 SD. KBP: Knowledge-based treatment planning, CP: Clinical plan, MCSs: Modulation complexity scores, MU: Monitor unit, PTV-R: Planning target volume minus the rectum, SD: Standard deviation