Table 3 DVH analysis for PTV and healthy tissue for treatment plans created with FF and FFF beams
From: The impact of flattening-filter-free beam technology on 3D conformal RT
Parameter | Breast | Neurocranium | Lung PTV | Spine metastasis | Prostate |
|---|---|---|---|---|---|
n | 13 | 11 | 7 | 10 | 11 |
Volume [cm3] | 922.7 ± 239.4 | 1329.3 ± 109.3 | 501.9 ± 318.0 | 175.7 ± 79.6 | 211.3 ± 94.9 |
Mean+SD [Gy] | 50.2 ± 0.3 | 30.9 ± 0.3 | 50.3 ± 0.2 | 37.9 ± 0.4 | 66.6 ± 0.6 |
50.2 ± 0.4 | 30.3 ± 0.2 | 50.5 ± 0.4 | 38.0 ± 0.3 | 66.5 ± 0.6 | |
p | 0.495 | 0.000 | 0.408 | 0.230 | 0.622 |
V95 [%] | 89.8 ± 1.6 | 99.9 ± 0.0 | 95.4 ± 3.3 | 98.3 ± 3.3 | 99.6 ± 0.3 |
89.1 ± 1.8 | 99.4 ± 0.3 | 94.3 ± 2.4 | 97.7 ± 2.6 | 99.2 ± 0.3 | |
p | 0.166 | 0.000 | 0.120 | 0.280 | 0.027 |
V107 [%] | 0.0 ± 0.0 | 0.0 ± 0.0 | 0.0 ± 0.0 | 0.0 ± 0.0 | 0.0 ± 0.0 |
0.0 ± 0.0 | 0.0 ± 0.0 | 0.1 ± 0.3 | 0.0 ± 0.0 | 0.0 ± 0.0 | |
p | 0.166 | 0.000 | 0.234 | 0.133 | 0.459 |
HI | 0.15 ± 0.0 | 0.06 ± 0.0 | 0.12 ± 0.0 | 0.10 ± 0.0 | 0.08 ± 0.0 |
0.17 ± 0.0 | 0.08 ± 0.0 | 0.13 ± 0.0 | 0.11 ± 0.0 | 0.09 ± 0.0 | |
p | 0.000 | 0.000 | 0.151 | 0.027 | 0.023 |
Healthy tissue | |||||
V5Gy [%] | 7.8 ± 1.1 | 54.7 ± 10.0 | 27.6 ± 9.5 | 10.4 ± 2.4 | 19.8 ± 8.3 |
7.7 ± 1.1 | 54.3 ± 10.0 | 27.7 ± 8.0 | 10.2 ± 2.4 | 20.0 ± 8.2 | |
p | 0.006 | 0.000 | 0.921 | 0.341 | 0.639 |
V10Gy [%] | 6.2 ± 1.0 | 50.8 ± 9.4 | 20.0 ± 7.3 | 6.2 ± 1.7 | 14.4 ± 6.7 |
6.2 ± 1.0 | 50.4 ± 9.4 | 19.6 ± 6.4 | 6.1 ± 1.7 | 14.6 ± 6.5 | |
p | 0.963 | 0.000 | 0.553 | 0.202 | 0.293 |