Table 1:
Imaging parameters and conditions for CBCT
| 10-Second CBCT | 20-Second CBCT | |
|---|---|---|
| Exposure parameters | ||
| Tube voltage | 70 kV | 70 kV |
| Pulse width | 12.5 ms | 12.5 ms |
| Radiation exposure | 1.20 μGy/pulse | 1.20 μGy/pulse |
| Binning/focus size/FOV | 1 × 1/0.4 mm/22 cm | |
| 2 × 2/0.6 mm/42 cm | ||
| Acquisition parameters | ||
| Angle step | 0.8°/frame | 0.4°/frame |
| Angle | 200° | 200° |
| Total frame | 250 | 500 |
| Matrix size/binning | 9602/2 × 2 | |
| 10242/1 × 1 | ||
| Injection condition | ||
| Injection rate | 1.0 mL/s | 1.0 mL/s |
| Concentration of contrast medium | 14% | 14% |
| X-ray delay time | 4.5 seconds | 4.5 seconds |
| Injection time of contrast medium | 14.5 seconds | 24.5 seconds |