Table 4.
Comparison of spatial resolution measurements
| PET System (crystal size) | 1 cm | 10 cm | 20 cm | ||||||
|---|---|---|---|---|---|---|---|---|---|
| FWHM | FWHM | FWHM | |||||||
| Axial | Tangential | Radial | Axial | Tangential | Radial | Axial | Tangential | Radial | |
| RefleXion (4.1 × 4.1x 20 mm3) | 4.2 | 4.3 | 4.3 | 5.2 | 4.8 | 5.2 | 7.0 | 5.8 | 7.2 |
| Vereos (4 × 4 x 19 mm3) | 4.2 | N/A | N/A | 4.4 | 4.0 | 4.0 | 4.6 | 4.9 | 5.8 |
| Discovery MI (3.95 × 5.3×25 mm3) | 4.4 | 4.0 | 4.0 | 5.5 | 4.2 | 5.3 | 5.7 | 4.7 | 7.5 |
| Vision (3.2 × 3.2 x 25 mm3) | 3.5 | 3.5 | 3.6 | 4.3 | 3.9 | 4.5 | 4.4 | 3.5 | 5.8 |
| Celesteion (4 × 4 x 4 mm3) | 4.4 | 4.7 | 4.5 | 4.6 | 4.8 | 4.6 | 4.7 | 5.3 | 5.8 |