PET/CT Acquisition Parameters for Discovery LS and Discovery VCT (RX) PET/CT Systems
| Acquisition parameter | Discovery LS | Discovery VCT (RX) |
| CT slice configuration | 4-slice | 64-slice |
| CT pitch | 1.5 | 0.984 |
| CT tube voltage | 120 kVp | 120 kVp |
| CT tube current | 20–200 mA* | 20–200 mA* |
| CT rotation time | 0.8 s | 0.5 s |
| PET detector material | Bismuth germanate | Lutetium yttrium orthosilicate |
| PET acquisition mode | 2 dimensions | 3 dimensions |
| PET scan time per bed position | 300 s | 255 s |
| PET bed position overlap | 3 slices (13 mm) | 11 slices (36 mm) |
| PET coincidence window | 12.5 ns | 6.5 ns |
| PET randoms correction | Delayed channel | Singles |
| PET energy range | 300–650 keV | 425–650 keV |
↵* Tube current automatically determined as a function of patient size. One hundred thirty milliamperes used for phantom study.