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MPC measured changes in couch lateral, longitudinal, and vertical with deliberate miscalibration of the calibration span
| Expected change (mm) | MPC change (mm) | Difference (mm) (expected – MPC) | |
|---|---|---|---|
| Lateral | |||
| Larger span | −0.75 | −0.76 | 0.01 |
| Smaller span | 0.75 | 0.71 | 0.04 |
| Longitudinal | |||
| Larger span | 0.75 | 0.76 | −0.01 |
| Smaller span | −0.75 | −0.79 | 0.04 |
| Vertical | |||
| Larger span | 2.0 | 1.99 | 0.01 |
| Smaller span | −2.0 | −1.96 | −0.04 |
