Table 1 Summary of co-registration error of the Discovery MI PET/CT scanners in mm
| PET/CT Scanner | Discover MI-1 | Discover MI-2 | Discover MI DR | ||||
| Direction | CE (mm) | NW | WW | NW | WW | NW | WW |
| X | Mean ± Std | 0.9 ± 0.9 | 0.9 ± 1.0 | 0.3 ± 0.2 | 0.3 ± 0.2 | 0.5 ± 0.3 | 0.7 ± 0.4 |
| Max | 2.5 | 2.9 | 0.6 | 0.7 | 1.0 | 1.6 | |
| Y | Mean ± Std | 1.1 ± 1.1 | 1.9 ± 1.3 | 0.4 ± 0.2 | 1.8 ± 0.5 | 0.2 ± 0.1 | 1.3 ± 0.3 |
| Max | 2.8 | 4.4 | 0.7 | 2.5 | 0.4 | 1.9 | |
| Z | Mean ± Std | 2.0 ± 0.1 | 1.9 ± 0.2 | 2.0 ± 0.3 | 1.7 ± 0.3 | 0.6 ± 0.3 | 2.4 ± 0.6 |
| Max | 2.2 | 2.2 | 2.6 | 2.1 | 1.1 | 3.4 | |
| 3D | Mean ± Std | 2.7 ± 0.6 | 3.1 ± 0.9 | 2.1 ± 0.3 | 2.5 ± 0.3 | 0.9 ± 0.3 | 2.9 ± 0.6 |
| Max | 3.3 | 4.7 | 2.6 | 3.0 | 1.2 | 3.7 | |