Image Quality Measurements for 2D and 3D Acquisition Modes
| Sphere diameter (mm) | |||||||
|---|---|---|---|---|---|---|---|
| Measurement | Mode | 10 | 13 | 17 | 22 | 28 | 37 |
| Contrast (%) | |||||||
| 2D | 17.9 ± 3.6 | 46.2 ± 4.6 | 56.7 ± 5.3 | 74.6 ± 5.1 | 77.1 ± 2.6 | 78.5 ± 2.4 | |
| 3D | 18.0 ± 1.2 | 44.6 ± 1.8 | 59.5 ± 1.8 | 72.4 ± 3.4 | 65.0 ± 1.1 | 73.6 ± 0.9 | |
| Background variability (%) | |||||||
| 2D | 10.8 ± 1.1 | 9.1 ± 1.5 | 7.3 ± 0.9 | 5.8 ± 0.8 | 4.8 ± 0.4 | 3.6 ± 0.2 | |
| 3D | 6.0 ± 0.7 | 5.0 ± 0.6 | 4.3 ± 0.5 | 3.7 ± 0.3 | 3.2 ± 0.2 | 2.7 ± 0.2 | |
Values are expressed as mean ± SD from three acquisitions and measurements.