LightSpeed VCTa
| Scanogram (AP–Lat) | Basal Scan (Optional) | Contrast Scan | |
|---|---|---|---|
| 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 | 0.625 × 64 | 0.625 × 64 |
| Pitch | NA | 0.984 | 0.984 |
| kV | 120 | 120 | 120 |
| mA | 50–200c | 350 | 350 |
| Rotation time | NA | 0.5 second | 0.5 second |
| Direction | NA | Craniocaudald | Craniocaudald |
| Slice thickness | NA | 1 mm | 1 mm |
| Slice interval | NA | 0.625 mm | 0.625 mm |
| FOV | Wide | 20 cm | 20 cm |
| Filter | NA | Sharp (B) | Sharp (B) |
| CTDI (mGy) | – | 15 | 16 |
| DLP (mGy × cm) | – | 0.6 | 0.6 |
| Amount of CM | – | – | 40–50 mLe |
| IDR | – | – | 1.4–1.5 g I/s |
| Concentrationf | – | – | 370 mg I/mL |
| Flow ratef | – | – | 4 mL/s |