Table 1.
Spatial resolution measured for the PET component of the mCT Flow system (NEMA NU2-2012) and comparison with the published values (NEMA NU2-2007) of its predecessor, the mCT system [6]
| Spatial resolution | Distance (cm) | Measured (mCT Flow) | Published (mCT) [6] | ||
|---|---|---|---|---|---|
| FWHM (mm) | FWTM (mm) | FWHM (mm) | FWTM (mm) | ||
| Transverse | 1 | 4.33 | 8.60 | 4.4 ± 0.1 | 8.6 ± 0.1 |
| Axial | 1 | 4.25 | 8.55 | 4.4 ± 0.1 | 8.7 ± 0.2 |
| Transverse radial | 10 | 5.16 | 9.30 | 5.2 ± 0.1 | 9.4 ± 0.1 |
| Transverse tangential | 10 | 4.72 | 9.68 | 4.7 ± 0.1 | 9.2 ± 0.1 |
| Axial | 10 | 5.85 | 11.06 | 5.9 ± 0.1 | 10.9 ± 0.3 |
| Transverse radial | 20 | 5.55 | 9.84 | – | – |
| Transverse tangential | 20 | 6.48 | 12.68 | – | – |
| Axial | 20 | 7.80 | 13.7 | – | – |