Technical Specifications of Imaging Protocols for Contrast-Enhanced Coronary Angiography by MDCT
| Value for: | ||
|---|---|---|
| Specification | 16-Slice scanner | 64-Slice scanner |
| Tube current (mAs) | 400–650 | 500–950 |
| Tube voltage (kV) | 120–140 | 120–140 |
| Tube rotation time (ms) | 375–500 | 330–420 |
| Temporal resolution (ms) | 183–250 | 165–210 |
| Slice collimation (mm) | 0.6–0.75 | 0.5–0.6 |
| Scan length (s) | 15–25 | 6–13 |
| Contrast dose (mL) | 70–100 | 50–80 |