Table 1 Patient positioning errors prior to cone-beam CT based image-guidance (IG) and immediately following image-guided radiosurgery (IG-RS)
Prior IG (n = 98) | Post IG-RS (n = 64) | |||||
|---|---|---|---|---|---|---|
Average | StDev | Max | Average | StDev | Max | |
LR [mm] | 0.1 | 2.1 | 10.3 | 0.1 | 0.6 | 1.8 |
SI [mm] | −0.8 | 1.7 | 5.4 | −0.3 | 0.8 | 3.0 |
AP [mm] | −2.7 | 2.0 | 9.9 | −0.2 | 0.4 | 1.4 |
3D vector [mm] | 3.9 | 1.9 | 11.9 | 0.9 | 0.6 | 3.0 |
Max Rotation [°] | 1.7 | 0.8 | 4.0 | 0.6 | 0.5 | 3.0 |