Statistical Analysis of Calibration Values for 2 Scanners, With and Without Outliers Due to Known Operator Error
| Scanner | Data set | n | Mean | Coefficient of variation (%) | 95% confidence interval range for coefficient of variation | Maximum change (%) |
| 1 | 18F 2D—all data | 29 | 0.054 | 6.1 | 4.8–8.2 | 20.3 |
| 18F 2D—outliers removed | 27 | 0.053 | 4.2 | 3.3–5.7 | 11.2 | |
| 68Ge/68Ga 2D—all data | 17 | 0.049 | 3.2 | 2.4–4.9 | 9.5 | |
| 18F 3D—all data | 28 | 0.201 | 6.2 | 4.9–8.4 | 22.4 | |
| 18F 3D—outliers removed | 25 | 0.197 | 3.0 | 2.3–4.1 | 9.8 | |
| 68Ge/68Ga 3D—all data | 13 | 0.183 | 3.7 | 2.6–6.1 | 12.3 | |
| 2 | 18F 2D—all data | 10 | 0.050 | 11.0 | 7.6–20.1 | 25.7 |
| 18F 2D—outliers removed | 8 | 0.053 | 4.3 | 2.9–8.8 | 8.7 | |
| 68Ge/68Ga 2D—all data | 6 | 0.051 | 3.1 | 1.9–7.6 | 5.0 | |
| 18F 3D—all data | 9 | 0.194 | 5.5 | 2.0–6.2 | 13.3 | |
| 18F 3D—outliers removed | 8 | 0.197 | 3.0 | 2.0–6.2 | 9.1 | |
| 68Ge/68Ga 3D—all data | 4 | 0.187 | 2.1 | 1.3–5.3 | 4.7 |
Units are ([scanner arbitrary units] × s/kBq × mL).