From: Accuracy and inter-observer variability of 3D versus 4D cone-beam CT based image-guidance in SBRT for lung tumors
Average
Standard deviation
Minimum
Maximum
3D Set-up errors [mm]
7.0
±2.4
2.3
10.7
3D Tumor position errors [mm]
8.6
±4.4
20.9
3D Tumor base-line shifts [mm]
4.9
±4.9
2.0
18.9