Table 2 CT parameters of each group
Dose group | Standard | Ultra-low | P |
|---|---|---|---|
Tube voltage (kV) | 120 | 100 | |
Tube current (mA) | 150 | 140 | |
D-FOV(mm) | 500 | 500 | |
Rotation time (s) | 1.00 | 0.75 | |
Thickness (mm) | 0.50 | 0.50 | |
Interval (mm) | 0.50 | 0.50 | |
Scan length (cm) | 160.00 | 160.00 | |
AIRD3D | Standard EU10 | Standard EU10 | |
CTDIvol(mGy) | 14.57 ± 0.60 | 6.67 ± 0.25 | 0.01 |
ED(mSv) | 2.17 ± 0.36 | 1.10 ± 0.13 | 0.01 |