Comparison of Lesion and Background SUVs for Image-Quality Phantom at Acceptance Testing and 12 Months Later
| SUV… | |||||||
| at acceptance testing | 12 mo later | ||||||
| SUV site | Maximum | Minimum | Average | Maximum | Minimum | Average | Error* |
| Lesion 1 (22 mm) | 4.95 | 2.1 | 3.04 | 4.7 | 1.98 | 2.97 | 5.05% |
| Lesion 2 (17 mm) | 4.65 | 1.98 | 2.84 | 4.53 | 1.93 | 2.75 | 2.58% |
| Lesion 3 (13 mm) | 3.91 | 1.63 | 2.2 | 3.73 | 1.58 | 2.12 | 4.60% |
| Lesion 4 (10 mm) | 2.35 | 0.96 | 1.44 | 2.33 | 1.08 | 1.50 | 0.85% |
| Background | 1.36 | 0.98 | 1.20 | 1.34 | 1.03 | 1.15 | 1.47% |
↵* Error in SUVmax estimation in second study compared with first study.