Axial Spatial Resolution of PennPET Explorer Whole-Body Imager
| Parameter | Radius (cm) | Rings (n) | Algorithm | Center (mm) | Gap (mm) | Edge (mm) |
| FWHM | 1–20 | 1 | Iterative | — | — | 3.5 ± 0.2 |
| 1–20 | 3 | Iterative | 4.0 ± 0.2 | 4.2 ± 0.1 | 3.6 ± 0.1 | |
| FWTM | 1–20 | 1 | Iterative | — | — | 6.8 ± 0.1 |
| 1–20 | 3 | Iterative | 8.5 ± 0.6 | 8.2 ± 0.1 | 6.9 ± 0.2 |
FWHM = full width at half maximum; FWTM = full width at tenth maximum.
Uncertainties are SD of replicate measurements.