Table 3.
Sharp | Standard | Soft | |
---|---|---|---|
Scaling discrepancy (mm): | 1.19 | 1.34 | 1.35 |
Geometric distortion (mm): | 0.14 | 0.14 | 0.15 |
Spatial resolution (50% MTF, lp/mm): | 0.26 | 0.21 | 0.19 |
Overall uniformity (%): | 98.85 | 98.94 | 98.99 |
Minimum uniformity (%): | 99.06 | 99.19 | 99.31 |
Contrast (%): | 10.68 | 10.56 | 10.41 |
High CNR: | 30.34 | 21.45 | 17.49 |
Low CNR: | 5.73 | 7.12 | 8.51 |
Maximum HU deviation (HU): | 58.98 | 57.50 | 57.68 |