Contrast Recovery and Background Variability at 5 Locations Along AFOV
| 37-mm sphere | 22-mm sphere | |||||
| Axial position | Background activity (kBq/mL) | Scan duration | CRC | Background variability | CRC | Background variability |
| −63 cm (⅟₂₀ AFOV) | 3.3 | 10.5 min | 96.8% | 1.4% | 94.7% | 2.8% |
| −39 cm (³⁄₁₀ AFOV) | 3.6 | 9.6 min | 96.7% | 1.7% | 96.8% | 2.4% |
| 0 cm (center) | 4.5 | 7.6 min | 95.8% | 1.6% | 98.9% | 1.9% |
| +39 cm (⁷⁄₁₀ AFOV) | 2.9 | 11.7 min | 94.7% | 1.6% | 96.7% | 2.4% |
| +63 cm (⁸⁄₁₀ AFOV) | 2.7 | 13.0 min | 91.5% | 1.8% | 90.4% | 2.5% |