Table 2 The positioning errors before/after (without/with) online set-up correction in the LR, SI and AP axes in this study (mm)
LR | SI | AP | ||||
|---|---|---|---|---|---|---|
Before | After | Before | After | Before | After | |
mean | 0.3 | 0.1 | 0.4 | 0.0 | -0.2 | 0.0 |
SD | 3.2 | 0.7 | 4.5 | 0.8 | 3.9 | 0.7 |
Range | -12.0 ~ 13.5 | -2.6 ~ 1.4 | -17.2 ~ 16.3 | -2.5 ~ 1.5 | -12.9 ~ 10.9 | -1.9 ~ 1.5 |
Σ | 1.4 | 0.2 | 2.1 | 0.2 | 2.3 | 0.1 |
σ | 3.0 | 0.8 | 4.1 | 0.7 | 3.2 | 0.7 |
Theoretic margin | 7.4 | 1.7 | 10.2 | 1.6 | 8.8 | 1.7 |
Translational shift | 4.4 | 7.2 | 5.8 | |||