Treatment plans | |||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|
VMAT only1) | Primary hybrid plan2) | Modified hybrid plan3) | p a | ||||||||
Mean | (SD) | Mean | (SD) | Mean | (SD) | p value | 1) vs 2) | 1) vs 3) | 2) vs 3) | ||
Whole Lung | |||||||||||
Dmean | (Gy) | 14.4 | (0.67) | 11.8 | (1.19) | 11.6 | (1.18) | < 0.001 | < 0.001 | < 0.001 | 0.935 |
V5Gy | (%) | 67.9 | (9.63) | 57.0 | (6.34) | 56.7 | (6.38) | < 0.001 | 0.001 | 0.001 | 0.993 |
V10Gy | (%) | 41.1 | (7.9) | 33.2 | (4.39) | 34.0 | (5.6) | < 0.001 | 0.003 | 0.008 | 0.926 |
V20Gy | (%) | 27.5 | (2.02) | 19.2 | (2.42) | 19.0 | (2.4) | < 0.001 | < 0.001 | < 0.001 | 0.971 |
Heart | |||||||||||
Dmean | (Gy) | 13.2 | (2.33) | 8.0 | (2.61) | 8.0 | (2.6) | < 0.001 | < 0.001 | < 0.001 | 1 |
V25Gy | (%) | 11.5 | (6.41) | 4.0 | (4.71) | 4.0 | (4.71) | 0.001 | 0.001 | 0.001 | 1 |
V30Gy | (%) | 6.4 | (4.86) | 2.4 | (3.49) | 2.4 | (3.49) | 0.005 | 0.024 | 0.023 | 1 |
LAD | |||||||||||
Dmean | (Gy) | 21.8 | (3.73) | 14.7 | (5.25) | 14.7 | (5.27) | < 0.001 | 0.001 | 0.001 | 0.999 |
Dmax | (Gy) | 33.7 | (2.65) | 33.0 | (7.19) | 32.9 | (7.15) | 0.566 | 0.947 | 0.933 | 0.999 |
V10Gy | (%) | 92.7 | (12.88) | 56.7 | (23.19) | 54.9 | (23.61) | < 0.001 | < 0.001 | < 0.001 | 0.97 |
V20Gy | (%) | 59.8 | (21.3) | 29.2 | (22.38) | 29.0 | (22.46) | 0.001 | 0.001 | 0.001 | 1 |