Table 1.
CT acquisition parameters in both protocol subgroups
| Group SDP | Group LDP | |
|---|---|---|
| kVp | 130 | 110 |
| Reference mAs | 70 | 40 |
| Slice thickness (mm) | 3 | 2 |
| Beam collimation | 16 × 1.2 mm1 | 16 × 1.2 mm1 |
| Recon | Iterative | Iterative |
| Image kernel | B50s moderate sharp | B31s medium smooth + |
| Reconstruction increment (mm) | 22 | 1.5 |
| Pitch | 1.5 | 1.5 |
| Rotation time (seconds) | 13 | 1 |
| CareDose type | AEC+DOM4 | AEC+DOM4 |
1
For T2 camera, 2 × 2.5 mm;
2
For T2 camera 3 mm;
3
For T2 camera 1.5 sec;
4
AEC = Automatic exposure control; DOM = Dose Modulation.