Table 3.
Binary classification performance of the topical detectors and radiological analysis
| Diagnostic metric | Topical detectors (QIBA threshold) | Topical detectors (optimal threshold) | Radiologist |
|---|---|---|---|
| TP | 4 | 4 | 5 |
| TN | 17 | 19 | 6 |
| FP | 2 | 0 | 13 |
| FN | 1 | 1 | 0 |
| Sensitivity (%) | 80.0 | 80.0 | 100.0 |
| Specificity (%) | 89.5 | 100.0 | 31.6 |
| Accuracy (%) | 87.5 | 95.8 | 45.8 |
| PPV (%) | 66.7 | 100.0 | 27.8 |
| NPV (%) | 94.4 | 95.0 | 100.0 |
| MCC | 0.65* | 0.87* | 0.30 |
*Significantly different from the radiologist metric based on the jackknife estimate of standard error and Student’s t-test