From: The potential failure risk of the cone-beam computed tomography-based planning target volume margin definition for prostate image-guided radiotherapy based on a prospective single-institutional hybrid analysis
(/mm)
non-compensated
compensated
AP
SI
LR
Σ
0.35
0.33
0.22
1.10
1.31
0.58
σ
0.85
0.80
0.44
1.91
2.18
1.07
PTV margin
1.5
1.4
0.9
4.1
4.8
2.2