Table 4.
Diagnostic performance of non-gated model based on chosen ground truth method.
| Cutoff score | Non-gated routine chest CT | Gated coronary CT | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Sensitivity (%) | Specificity (%) | PPV (%) | NPV (%) | F1 | Sensitivity (%) | Specificity (%) | PPV (%) | NPV (%) | F1 | |
| 1 | 93.5 (86.4, 100) | 100 (100, 100) | 100 (100, 100) | 88.2 (78.9, 97.5) | 0.967 | 74.4 (61.7, 87.0) | 100 (100, 100) | 100 (100, 100) | 41.2 (27.0, 55.4) | 0.853 |
| 10 | 90.9 (82.6, 99.2) | 100 (100, 100) | 100 (100, 100) | 92.3 (84.6, 100) | 0.952 | 57.1 (42.8, 71.4) | 100 (100, 100) | 100 (100, 100) | 42.3 (28.0, 56.6) | 0.727 |
| 100 | 87.5 (77.9, 97.1) | 97.4 (92.7, 100) | 87.5 (77.9, 97.1) | 97.4 (92.7, 100) | 0.875 | 33.3 (19.7, 47.0) | 96.0 (90.3, 100) | 87.5 (77.9, 97.1) | 63.2 (49.2, 77.1) | 0.458 |
| 400 | 100 (100, 100) | 100 (100, 100) | 100 (100, 100) | 100 (100, 100) | 1.000 | 37.5 (23.5, 51.5) | 100 (100, 100) | 100 (100, 100) | 88.4 (79.1, 97.6) | 0.545 |
PPV positive predictive value, NPV negative predictive value.