Coverage | Sternum to midhead | Midneck to cover the bifurcation | From aortic arch to midhead |
Scan mode | Scanogram | Helical | Helical |
Start time | NA | | Bolus trackingb |
Range | 500 (mm) | 8 cm | Variable |
Collimation | NA | 0.6 × 64 | 0.6 × 64 |
Pitch | NA | 0.55 | 0.55 |
kV | 120 | 120 | 120 |
mA | 50–200c | 350 | 350 |
Rotation time | NA | 0.28 second | 0.28 second |
Direction | NA | Craniocaudald | Craniocaudald |
Slice thickness | NA | 1 mm | 1 mm |
Slice interval | NA | 0.5 mm | 0.5 mm |
FOV | Wide | 20 cm | 20 cm |
Filter | NA | Sharp (B30f) | Sharp (B30f) |
CTDI (mGy) | – | 18 | 18 |
DLP (mGy × cm) | – | 0.65 | 0.65 |
Amount of CM | – | – | 40–50 mLe |
IDR | – | – | 1.4–1.5 g I/s |
Concentrationf | – | – | 370 mg I/mL |
Flow ratef | – | – | 4 mL/s |