Table 4. Performance of CCTA and FFR-CT at the vessel level (n=459).
| Angiography (gold standard) | CCTA | FFR-CT | |
|---|---|---|---|
| True positive | 141 | 123 | 117 |
| True negative | 318 | 222 | 259 |
| False positive | - | 96 | 59 |
| False negative | - | 18 | 24 |
| Sensitivity, % | - | 87 | 83 |
| Specificity, % | - | 70 | 81 |
| Positive predictive value, % | - | 56 | 67 |
| Negative predictive value, % | - | 92 | 92 |
| Accuracy, % | - | 75 | 82 |
| Values are n, or %, where indicated. CCTA: coronary computed tomography angiography; FFR-CT: fractional flow reserve derived from CCTA | |||