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Overall mean displacement magnitudes (SD) for geometric phantom verification tests
| Type | Couch lat (mm) | Couch long (mm) | Couch vert (mm) | Couch rtn (°) |
|---|---|---|---|---|
| translations only | 0.63 (0.50) | 0.31 (0.48) | 0.73 (0.45) | 0.51 (0.50) |
| combined translations | 1.0 (0.89) | 0.17 (0.41) | 0.67 (0.52) | 0.33 (0.26) |
| rotations only | 0.25 (0.50) | 0.0 (0.0) | 0.50 (0.58) | 0.43 (0.32) |
| combined translations and rotations | 1.5 (0.71) | 0.5 (0.71) | 1.0 (0.0) | 1.15 (1.2) |
