SD of Observed VOIs as Function of Actual Sphere Volume and VOI Method
Sphere volume | SD | |||||||
SBR = 9 | SBR = 4.5 | |||||||
A41 | 50 | A50 | A70 | A41 | 50 | A50 | A70 | |
26.52 | 0.63 | 0.65 | 0.73 | 1.49 | 1.71 | 1.84 | 1.60 | 2.03 |
11.49 | 0.56 | 0.71 | 0.44 | 0.29 | 0.69 | 0.67 | 0.35 | 0.81 |
5.57 | 0.37 | 0.18 | 0.24 | 0.27 | 0.31 | 0.30 | 0.26 | 0.29 |
2.57 | 0.21 | 0.14 | 0.08 | 0.16 | 0.52 | 0.54 | 0.21 | 0.20 |
1.15 | 0.22 | 0.13 | 0.11 | 0.05 | 0.28 | 0.87 | 0.13 | 0.06 |