Table 2. MTV and parameters of DVH for all the organs at risk.
Organs | Parameters | Original plan | Composite plan | p value |
---|---|---|---|---|
MTV | (ml) | 136.2±82.3* | 64.7±68.0* | 0.001 |
Total-lung | V5 | 58.90% | 48.60% | <0.001 |
V10 | 44.50% | 34.60% | <0.001 | |
V13 | 37.40% | 30.50% | <0.001 | |
V15 | 33.90% | 27.80% | <0.001 | |
V20 | 27.80% | 23.30% | <0.001 | |
V25 | 23.70% | 19.20% | <0.001 | |
V30 | 20.40% | 15.60% | <0.001 | |
Dmean (cGy) | 1663.0±568.9* | 1444.6±547.4* | <0.001 | |
Heart | V10 | 50.20% | 38.20% | 0.002 |
V20 | 34.60% | 28.10% | 0.002 | |
V30 | 25.60% | 21.90% | 0.001 | |
V40 | 18.20% | 15.10% | 0.001 | |
V50 | 13.30% | 9.50% | 0.001 | |
V60 | 6.50% | 4.40% | 0.001 | |
Dmean (cGy) | 1937.4 | 1545.8 | 0.001 | |
Esophagus | V35 | 39.40% | 35.70% | 0.001 |
V40 | 38.30% | 32.50% | 0.001 | |
V50 | 31.30% | 25.90% | 0.001 | |
V55 | 29.50% | 21.60% | 0.001 | |
V60 | 26.90% | 17.80% | 0.001 | |
Dmax (cGy) | 7241.2 | 7186.9 | 0.001 | |
Dmean (cGy) | 2528.2±1136.3* | 2268.3±1196* | 0.04 | |
Spinal-cord | Dmax (cGy) | 4,199.7 | 4,133.9 | 0.004 |
*: Mean ± standard deviation.
MTV, metabolic tumor volumes; DVH, dose volume histogram.