From: Accuracy and inter-observer variability of 3D versus 4D cone-beam CT based image-guidance in SBRT for lung tumors
LR [mm]
SI [mm]
AP [mm]
3D vector [mm]
Average
St Dev
IG-4D minus IG-3D
0.1
± 0.9
1.2
± 4.3
0.0
± 1.8
3.6
± 3.2
IG-4D minus IG-ITV
± 0.7
0.9
± 1.5
± 1.0
1.9