Table 1 Dosimetric analysis for four different setup-field plans on the Halcyon
CBCT-H | CBCT-L | MV-H | MV-L | p | p < 0.05 | |
|---|---|---|---|---|---|---|
PTV | ||||||
Dmean(Gy) | 52.4 ± 0.3 | 52.0 ± 0.2 | 52.2 ± 0.2 | 52.1 ± 0.3 | 0.01 | a |
D98(Gy) | 48.5 ± 0.2 | 48.5 ± 0.3 | 48.5 ± 0.3 | 48.6 ± 0.4 | 0.95 | |
D2(Gy) | 54.3 ± 0.60 | 53.6 ± 0.3 | 53.8 ± 0.4 | 53.7 ± 0.5 | 0.01 | a,c, |
V107 (%) | 16.1 ± 12.8 | 3.6 ± 2.8 | 7.9 ± 6.7 | 7.5 ± 10.8 | 0.03 | a |
V110 (%) | 0.8 ± 1.6 | 0.0 ± 0.0 | 0.1 ± 0.1 | 0.0 ± 0.1 | 0.09 | |
CI | 0.86 ± 0.02 | 0.86 ± 0.02 | 0.86 ± 0.02 | 0.86 ± 0.02 | 0.96 | |
HI | 11.6 ± 1.3 | 10.1 ± 1.1 | 10.6 ± 1.1 | 10.1 ± 1.4 | 0.06 | |
Heart | ||||||
V5(%) | 55.0 ± 9.3 | 30.5 ± 6.2 | 33.2 ± 8.4 | 29.4 ± 7.7 | 0.00 | a,b,c |
V30(%) | 1.1 ± 0.6 | 0.8 ± 0.5 | 1.0 ± 0.7 | 1.1 ± 0.7 | 0.62 | |
Dmean(Gy) | 7.1 ± 0.7 | 5.6 ± 0.6 | 6.0 ± 0.9 | 5.7 ± 0.9 | 0.00 | a,b,c |
LV | ||||||
V5(%) | 57.9 ± 11.2 | 35.7 ± 9.3 | 39.9 ± 11.6 | 36.0 ± 10.4 | 0.00 | a,b,c |
V30(%) | 2.6 ± 1.3 | 1.9 ± 1.0 | 2.5 ± 1.5 | 2.6 ± 1.5 | 0.56 | |
Dmean(Gy) | 8.7 ± 1.3 | 6.8 ± 1.1 | 7.3 ± 1.5 | 6.9 ± 1.4 | 0.03 | a,c |
LAD | ||||||
V5(%) | 97.5 ± 5.1 | 84.6 ± 13.4 | 85.1 ± 12.7 | 80.6 ± 14.5 | 0.02 | c |
V30(%) | 21.3 ± 13.8 | 14.3 ± 10.9 | 20.8 ± 15.0 | 21.6 ± 15.0 | 0.59 | |
Dmax(Gy) | 39.5 ± 3.2 | 38.9 ± 3.1 | 39.7 ± 3.3 | 39.8 ± 3.5 | 0.92 | |
Dmean(Gy) | 19.2 ± 4.7 | 17.2 ± 4.0 | 18.5 ± 4.6 | 18.2 ± 5.0 | 0.80 | |
Lungs | ||||||
V5(%) | 57.7 ± 8.9 | 43.7 ± 4.1 | 46.6 ± 7.4 | 43.7 ± 6.6 | 0.00 | a,b,c |
V20(%) | 14.9 ± 2.9 | 13.2 ± 2.5 | 14.7 ± 2.7 | 14.2 ± 2.4 | 0.47 | |
Dmean(Gy) | 10.4 ± 1.1 | 9.1 ± 0.8 | 9.6 ± 1.0 | 9.3 ± 0.9 | 0.03 | a |
Liver | ||||||
Dmean(Gy) | 6.9 ± 1.5 | 6.0 ± 1.1 | 6.5 ± 1.5 | 6.3 ± 1.4 | 0.54 | |
Skin | ||||||
V40(%) | 41.3 ± 9.2 | 40.4 ± 8.8 | 39.7 ± 9.2 | 39.2 ± 8.5 | 0.96 | |
V50(%) | 0.3 ± 0.2 | 0.3 ± 0.2 | 0.1 ± 0.1 | 0.1 ± 0.1 | 0.12 | |
B-P | ||||||
V5(%) | 32.9 ± 4.5 | 27.6 ± 2.8 | 28.9 ± 3.5 | 28.0 ± 3.4 | 0.01 | a,c |
V10(%) | 19.9 ± 2.3 | 18.4 ± 1.9 | 19.4 ± 2.0 | 19.0 ± 2.1 | 0.44 | |
MUs | 936.5 ± 68.2 | 1036.1 ± 103.8 | 956.6 ± 73.4 | 986.2 ± 76.5 | 0.05 |