Table 4.
Comparison of our study data with literature published indices
| Dosimetric index | Definition | Our study(n = 91) | Kannarunimit et al21 (n = 9) | Rausche- bach et al22 (n = 25) | Weyh et al23 (n = 8) | Ding et al24 (n = 8) | Rana et al25 (n = 14) | Dickey et al26(n = 23) |
| PTV, cm3 | Range | 5.1–252.5 | 36.2 ± 18.1 | 12.65–190.7 | 7.63–83.43 | 14.6–145.4 | 3.2–43.0 | 16.0–67.0 |
| Coverage | Coverage, % | 96.7 ± 1.92 | 96.0 ± 1.0 | |||||
| Homogeneity | HIRTOG | 1.27 ± 0.07 | 1.19 ± 0.02 | |||||
| Conformity indices | CIRTOG | 1.03 ± 0.07 | 1.11 ± 0.05 | 0.99 ± 0.02 | 1.29 ± 0.02 | 1.64 ± 0.29 | 1.18 ± 0.09 | 1.03 ± 0.03 |
| CN | 0.90 ± 0.06 | 0.84 ± 0.03 | 0.88 ± 0.02 | |||||
| Gradient | R50% (RTOG) | 4.40 ± 0.70 | 4.52 ± 0.46 | 3.57 ± 0.32 | 6.53 ± 1.2 | 4.90 ± 0.56 | 4.76 ± 0.36 | |
| Low dose spillage (%) | D2 cm (%) | 54.90 ± 10.7 | 28.52 ± 2.2 | 52.0 ± 6.0 | 67.34 ± 0.02 | 50.09 ± 6.26 | 54.0 ± 3.4 | |
| High dose spillage (%) | (V105%PD–PTV)/PTV | 0.90 ± 1.70 | 0.68 ± 0.01 | |||||
| Total lung dose (%) | V20 Gy | 4.80 ± 3.20 | 4.66 ± 1.26 | 3.77 ± 2.9 | 6.32 ± 3.9 | 5.3 ± 3.6 | 5.96 ± 2.77 | |
| V5 Gy | 16.40 ± 9.20 | 23.20 ± 7.21 |
CI, conformity index; CN, confirmation number; HI, homogeneity index; PTV, planning target volume; RTOG, radiation therapy oncology group.