Table 1.
Acquisition and reconstruction parameters. Acquisition and reconstruction parameters of all CT scans
| Dual-source CT | Single-source CT | |||||
|---|---|---|---|---|---|---|
| Scan | DE | SE | SE | |||
| 80 kV | ME 130 keV | Sn 150 kV | 120 kV Mix | 120 kV | 120 kV iMAR | |
| Kernels (sk/bk) | Qr36/Qr54 | Br36/Br54 | Qr36/Qr54 | Qr36d/Qr54d | Qr36/Qr54 | I30s (sk) |
| mAs | 37–47/29–33 (80/Sn 150 kV) | 29–31 | 31–33 | |||
| CTDIvol (mGy) | 1.81 ± 0.12 | 2.01 ± 0.06 | 2.16 ± 0.05 | |||
| Slice thickness/increment | 1 mm / 1 mm | |||||
| Field of view | 160 × 160 mm | |||||
| Matrix | 512 × 512 | |||||
bk bone kernel, CT computed tomography, CTDI CT dose index, DE dual energy, iMAR iterative metal artifact reduction (brand name), ME monoenergetic extrapolation, SE single energy, sk soft tissue kernel, Sn tin-filtered