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Technical scan parameters.
| Technical parameters | CT angiography | CT perfusion |
|---|---|---|
| Tube voltage | 120 kV | 120 kV |
| Pitch | 1.046 | 1.046 |
| Gantry rotation time | 0.4 s | 0.4 s |
| Scan time | 4.4 s | 58 s |
| Collimation | 64 × 0.625 | 64 × 0.625 |
| Scan delay | 4 s | 5 s |
| Volume of contrast agent | 60 ml | 40 ml |
| Infusion speed | 5 ml/s | 4 ml/s |
| Number of cycles | – | 17 |
