Reducing Radiation Dose in Emergency CT Scans While Maintaining Equal Image Quality: Just a Promise or Reality for Severely Injured Patients?
Table 1
Radiation dose.
Parameters
Standard 140 kV
IR 30 140 kV
IR 40 140 kV
Scan range (cm)
90.1 ± 3.2
90.9 ± 4.9
90.8 ± 3.4
Max. abdominal cross-section
Coronal (cm)
35.2 ± 3.7
37.2 ± 3.1
36.3 ± 3.3
Sagittal (cm)
27.5 ± 3.3
27.2 ± 4.7
26.8 ± 4.4
CDTIvol (mGy·cm)
15.5 ± 1.8
12.1 ± 3.5
10.7 ± 2.5
DLP (mGy/cm)
1491.4 ± 160.1
1179.1 ± 354.6
1035.4 ± 229.1
Effective radiation dose (mSv)
25.3 ± 2.9
19.7 ± 5.8
17.5 ± 4.2
Parameters of the routine FBP protocol, IR 30 protocol, and IR 40 protocol. Data are presented as mean ± standard deviation. CTDIvol: CT volume dose index, DLP: dose-length product.
