TABLE III.
Achieved spatial resolution (lp/mm) and noise for FBP and 100% ASIR with 200 mA (100 mA s) and 50 mA (25 mA s) tube currents at half DFOV. Veo measures were similar to that achieved for 100% ASIR, but were only obtained for the STD kernel because of incompatibility with higher frequency kernels. Values are plotted in Fig. 2.
| Recon | Recon kernel | Resolution (1p/mm) | σHU | Recon kernel | Resolution (1p/mm) | σHU |
|---|---|---|---|---|---|---|
| algorithm | 100 mA s | 25 mA s | ||||
| FBP | STD | 8 | 20.95 | STD | 8 | 43.70 |
| DETAIL | 9 | 26.27 | DETAIL | 9 | 55.89 | |
| BONE | 11 | 78.1 | BONE | 11 | 162.23 | |
| EDGE | 13 | 149.85 | EDGE | 13 | 307.63 | |
| ASIR | STD | 8 | 11.69 | STD | 7 | 24.14 |
| DETAIL | 9 | 12.45 | DETAIL | 9 | 26.34 | |
| BONE | 11 | 34.85 | BONE | 11 | 71.97 | |
| EDGE | 13 | 67.2 | EDGE | 13 | 174.29 | |