Phantom Study for Image Quality with 1, 3, and 6 mm in FWHM
| Gaussian filter (mm in FWHM) | |||
| Sphere size (mm) | 1 | 3 | 6 |
| 10 | 32.0 ± 4.4 | 29.8 ± 3.5 | 21.1 ± 1.6 |
| 13 | 56.8 ± 2.6 | 54.5 ± 2.1 | 42.6 ± 0.6 |
| 17 | 63.0 ± 4.0 | 61.7 ± 3.6 | 53.2 ± 2.1 |
| 22 | 75.0 ± 4.9 | 73.6 ± 5.1 | 64.9 ± 4.4 |
| 28 | 64.7 ± 1.6 | 64.3 ± 1.4 | 61.3 ± 1.4 |
| 37 | 66.8 ± 1.4 | 66.5 ± 1.2 | 64.0 ± 1.2 |
Data are image contrast (Q) (%).