Image Quality of Q.Clear with 60-Second Acquisition Using NEMA NU2-2012 for LBRs of 8:1, 4:1, and 2:1
| Contrast recovery (%) | Background variability (%) | |||||
| Sphere diameter (mm) | 8:1 | 4:1 | 2:1 | 8:1 | 4:1 | 2:1 |
| 10 | 36 ± 3 | 25 ± 3 | 17 ± 4 | 9 ± 0.1 | 7.0 ± 0.3 | 10.4 ± 0.8 |
| 13 | 48 ± 5 | 44 ± 5 | 27 ± 2 | 8 ± 0.1 | 6.2 ± 0.1 | 8.8 ± 0.6 |
| 17 | 70 ± 4 | 63 ± 4 | 66 ± 4 | 7 ± 0.2 | 5.3 ± 0.1 | 7.2 ± 0.5 |
| 22 | 73 ± 1 | 72 ± 1 | 79 ± 5 | 6 ± 0.3 | 4.4 ± 0.3 | 5.9 ± 0.6 |
| 28 | 68 ± 1 | 72 ± 1 | 72 ± 3 | 5 ± 0.4 | 3.6 ± 0.3 | 5.1 ± 0.4 |
| 37 | 79 ± 1 | 74 ± 1 | 77 ± 2 | 4 ± 0.5 | 3. ± 0.1 | 4.5 ± 0.3 |
| Lung residual (%) | — | — | — | 12 ± 0.4 | 10.5 ± 0.6 | 12.3 ± 0.5 |
Data are mean ± SD.