Table 1.
Mean values and standard deviations (n = 10) of the dosimetric parameters for the different techniques studied
| tVMAT | cVMAT | tIMRT | FinF | |
|---|---|---|---|---|
| PTV | ||||
| D1cm3 (Gy) | 53.4 ± 0.5 | 53.3 ± 0.4 | 53.7 ± 0.5 | 53.5 ± 0.6 |
| V47.5 (%) | 97.8 ± 0.8 | 98.1 ± 1.0 | 96.3 ± 2.0 | 91.4 ± 2.4 |
| HI | 0.10 ± 0.01 | 0.10 ± 0.01 | 0.12 ± 0.02 | 0.14 ± 0.01 |
| CI | 0.50 ± 0.03 | 0.50 ± 0.04 | 0.45 ± 0.05 | 0.47 ± 0.09 |
| Lung, Ipsilateral | ||||
| V20 (%) | 18.1 ± 5.3 | 15.3 ± 4.6 | 21.6 ± 4.0 | 21.4 ± 3.7 |
| V10 (%) | 25.3 ± 5.6 | 23.4 ± 5.6 | 26.2 ± 4.3 | 25.7 ± 3.8 |
| V5 (%) | 36.9 ± 5.4 | 35.5 ± 5.6 | 33.3 ± 4.3 | 32.0 ± 3.6 |
| Mean dose (Gy) | 9.6 ± 2.1 | 8.7 ± 1.7 | 10.9 ± 1.8 | 10.4 ± 1.5 |
| Lung, Contralateral | ||||
| Mean dose (Gy) | 0.9 ± 0.1 | 1.6 ± 0.7 | 0.7 ± 0.1 | 0.7 ± 0.1 |
| Heart | ||||
| V30 (%) | 5.7 ± 6.0 | 3.4 ± 3.9 | 13.9 ± 6.8 | 15.2 ± 6.9 |
| V25 (%) | 8.2 ± 6.9 | 5.0 ± 5.3 | 15.4 ± 7.1 | 16.4 ± 7.4 |
| V2 (%) | 60.8 ± 18.8 | 68.4 ± 22.3 | 61.3 ± 14.4 | 57.9 ± 14.4 |
| Mean dose (Gy) | 6.3 ± 3.0 | 5.5 ± 2.9 | 9.1 ± 3.4 | 9.1 ± 3.5 |
| LAD | ||||
| V30 (%) | 43.1 ± 29.5 | 32.0 ± 27.3 | 67.8 ± 19.9 | 79.7 ± 8.1 |
| V25 (%) | 55.0 ± 27.8 | 40.3 ± 28.4 | 72.2 ± 15.1 | 81.2 ± 7.5 |
| Mean dose (Gy) | 24.3 ± 8.0 | 20.4 ± 8.7 | 34.4 ± 7.0 | 37.9 ± 3.6 |
| Breast, Contralateral | ||||
| V2 (%) | 10.2 ± 7.0 | 53.0 ± 27.1 | 11.1 ± 5.6 | 7.0 ± 4.8 |
| Mean dose (Gy) | 1.2 ± 0.3 | 2.6 ± 1.2 | 1.0 ± 0.4 | 1.0 ± 0.3 |
| Normal tissue (Body-PTV) | ||||
| V53.5 (cm3) | 0.9 ± 1.1 | 0.4 ± 0. 5 | 8.5 ± 15.6 | 1.9 ± 4.1 |
| V2 (%) | 20.3 ± 4.6 | 30.4 ± 8.3 | 17.3 ± 2.8 | 15.9 ± 3.4 |
| Mean dose (Gy) | 3.3 ± 0.5 | 3.8 ± 0.6 | 3.3 ± 0.5 | 3.4 ± 1.1 |
| Body | ||||
| Integral Dose (Gydm3) | 105.3 ± 43.4 | 113.5 ± 43.8 | 105.6 ± 43.8 | 99.3 ± 46.5 |