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Average systematic error (M), standard deviation of the systematic error (Σ), and standard deviation of the random error (σ) of the x, y, and z isocenter shifts during daily setup of 10 patients (253 adaptive fractions on the MR-linac).
| Axis | M (mm) | Σ (mm) | σ (mm) |
|---|---|---|---|
| x (left/right) | −0.3 | 3.3 | 1.7 |
| y (sup/inf) | 0.7 | 2.6 | 2.9 |
| z (ant/post) | 0.1 | 1.4 | 2.0 |
