Table 1 Diagnostic performance of radiographic findings and radiological interpretation in the diagnosis of congestive heart failure.
| Sensitivity (%) | Specificity (%) | PPV (%) | NPV (%) | Accuracy (%) | |
|---|---|---|---|---|---|
| Cardiomegaly | 63.6 | 70.5 | 70.8 | 63.2 | 66.8 |
| Cephalisation | 19.6 | 92.6 | 75.0 | 50.6 | 54.0 |
| Vascular prominent hilum | 16.8 | 71.6 | 40.0 | 43.3 | 42.6 |
| Hilar haziness | 22.4 | 93.7 | 80.0 | 51.7 | 55.9 |
| Peribronchial cuffing | 16.8 | 95.8 | 81.8 | 50.6 | 54.0 |
| Kerley B lines | 23.4 | 95.8 | 86.2 | 52.6 | 57.4 |
| Haziness of pulmonary vessels | 17.8 | 97.9 | 90.5 | 51.4 | 55.4 |
| Peripheral extension of pulmonary vessels | 10.3 | 95.8 | 73.3 | 48.7 | 50.5 |
| Interstitial oedema | 29.0 | 92.6 | 81.6 | 53.7 | 58.9 |
| Alveolar oedema | 12.1 | 98.9 | 92.9 | 50.0 | 53.0 |
| Right sided pleural effusion | 11.2 | 90.5 | 57.1 | 47.5 | 48.5 |
| Left sides pleural effusion | 11.2 | 92.6 | 63.2 | 48.1 | 49.5 |
| Bilateral pleural effusion | 19.6 | 94.7 | 80.8 | 51.1 | 55.0 |
| Radiological interpretation | 53.3 | 86.3 | 81.4 | 62.1 | 68.8 |
NPV, negative predictive value; PPV, positive predictive value.