Table 1 Comparison of different CT technical parameters
Scan sequence | Technology | Tube voltage | Tube current | Pitch | Scanning slice thickness | Slice spacing |
|---|---|---|---|---|---|---|
Plain scan | Helical scan | 120 kVp | 100⁓450 mAs | 0.992:1 | 5 mm | 5 mm |
Perfusion scan | Axial scan | 100 kVp | 100 mAs, 50ASIR-V | 0.992:1 | 5 mm | 5 mm |
Energy spectrum enhancement | Helical scan | 80 and 140 kVp | Auto-adjustment | 0.992:1 | 5 mm | 5 mm |