| Systematic Error (∑) | Random Error (σ) | ||
| Mean | SD | Mean | SD |
Lateral (x-axis) [mm] | 1.11 | 2.11 | 1.82 | 2.39 |
Longitudinal (y-axis) [mm] | 0.28 | 2.02 | 1.66 | 2.14 |
Vertical (z-axis) [mm] | −0.65 | 1.06 | 1.25 | 1.61 |