Table 9.
Comparison of the recovery coeficient (RC) for the 3mm diameter rod, uniformity and Spill-Over Ratio (SOR) of different preclinical PET scanners. Data are taken from [5–15, 38]
| System | Recon. method | Corrected for AC/SCb | RC | STD (%) | SOR (%) | |
|---|---|---|---|---|---|---|
| Uniform region | Water chamber | Air chamber | ||||
| SAFIR | 3D MLEM | yes/yes | 0.49 | 3.0 | 17.3 | 18.5 |
| Hyperion IID | 3D MLEM | yes/yes | 0.91 | 3.7 | 5.4 | 6.3 |
| NanoScan | penalized MLEM | yes/yes | 0.9 | 3.5 | 6.2 | 5.8 |
| MuPET | FBP3DRP | yes/no | 0.75 | 6.5 | 9 | 5 |
| Inveon | FORE + 2D FBP | yes/yes | 0.72 | 5.3 | 1.7 | −0.6 |
| IRIS | OSEM | yes/no | 0.73 | 7 | 11 | 11 |
| ClearPET | 3D OSEMa | no/no | 0.42 | 10.9 | 36.9 | 26.7 |
| Mosaic HP | 3D RAMLAa | yes/yes | 0.56 | 5.1 | 6.3 | 2.7 |
| LabPET 8TM | 2D MLEM | no/no | 0.58 | 7.0 | 20 | 11 |
| microPET R4 | FOREa + 2D FBP | yes/no | 0.60 | 4.5 | 6.2 | 4.6 |
| Xtrim-PET | FORE + 2D OSEM | no/no | 0.68 | 3.8 | 25 | 35 |
| Bruker | 3D MLEM | yes/no | 0.91 | 4.5 | 6.2 | 4.6 |
aFORE = Fourier Rebinning; RAMLA = Row-Action Maximum-Likelihood Algorithm; OSEM = Ordered Subset Expectation Maximization
b AC = Attenuation Correction; SC = Scatter Correction