Table 3 Gain in singles rates, coincident rates, and sensitivity for the wristPET2 system with increasing number of detection rings. The reference values in these cases are the values determined from the single half-ring 8-detector system
Amount of rings | Max singles rate gain (@ peak) | Max coincidences gain (@peak) | Sensitivity (singles) (cps/kBq) | Sensitivity (coincidents) (cps/kBq) |
|---|---|---|---|---|
15O | ||||
2 | 2.64 | 8.84 | 230.11 | 4.12 |
3 | 4.87 | 33.27 | 424.1 | 15.52 |
4 | 7.29 | 72.73 | 635.1 | 33.94 |
18F | ||||
2 | 2.63 | 12.10 | 231.85 | 2.87 |
3 | 4.90 | 49.10 | 431 | 11.68 |
4 | 7.40 | 109.0 | 650.43 | 25.93 |