Analysis of NEMA Image Quality Phantom
| Uniformity | Recovery coefficient | Spillover ratio | ||||||
| Parameter | FBP | PSF | mm | FBP | PSF | Air/water | FBP | PSF |
| Mean | 1.0 | 1.0 | 1 | 0.18 ± 0.02 | 0.23 ± 0.03 | Air | 0.13 ± 0.07 | 0.14 ± 0.02 |
| Maximum | 1.3 | 1.2 | 2 | 0.43 ± 0.03 | 0.62 ± 0.06 | Water | 0.25 ± 0.06 | 0.24 ± 0.03 |
| Minimum | 0.60 | 0.8 | 3 | 0.64 ± 0.03 | 0.78 ± 0.07 | |||
| SD | 0.076 | 0.06 | 4 | 0.77 ± 0.02 | 0.80 ± 0.05 | |||
| 5 | 0.84 ± 0.03 | 0.83 ± 0.07 | ||||||