Table 5.
Comparison of NECR and scatter fraction (SF) of different preclinical PET scanners. Data are taken from [5–15]
| System | Mouse phantom | Rat phantom | ||||
|---|---|---|---|---|---|---|
| NECR peak (kcps) | Activity (MBq) | SF (%) | NECR peak (kcps) | Activity (MBq) | SF (%) | |
| SAFIRa | 799 | 537 | 10.9 | 121 | 624 | 17.8 |
| Hyperion IID | 407 | 46 | 13 | – | – | – |
| NanoScan | 406 | 30 | 17.3 | 119 | 25 | 34 |
| MuPET | 1100 | 57 | 11.9 | 352 | 65 | 28.0 |
| Inveon | 1670 | 131 | 7.8 | 592 | 110 | 17.2 |
| IRIS | 185 | 14 | 15.6 | 40 | 10 | 22.4 |
| ClearPET | 73 | 18 | 31 | – | – | – |
| Mosaic HP | 555 | 92 | 5.4 | 244 | 87 | 12.7 |
| LabPET 8TM | 279 | 82 | 15.6 | 94 | 91 | 29.5 |
| microPET R4 | 168 | 91 | 18 | 89 | 81 | 28 |
| Xtrim-PET | 113.2 | 17 | 12.5 | 82.8 | 15 | 25.8 |
| Bruker | 486 | 23 | – | 240 | 23 | – |
aFor SAFIR, the highest NECR values at the highest measured activities are reported as the NECR peaks are not reached
bActivity at which the NECR peak is measured