Table 3.
Characteristics of HRCT temporal bone in detecting various pathologies
| HRCT findings | Sensitivity (%) | Specificity (%) | PPV (%) | NPV (%) | Diagnostic accuracy (%) |
|---|---|---|---|---|---|
| Ossicular erosion | 92.31 | 100 | 100 | 91.18 | 95.71 |
| LSCC erosion | 100 | 98.51 | 75 | 100 | 98.57 |
| Facial canal dehiscence | 85.71 | 96.83 | 75 | 98.39 | 95.71 |
| Scutum erosion | 100 | 98.11 | 94.44 | 100 | 98.57 |
| Tegmen erosion | 75 | 96.97 | 60 | 98.46 | 95.71 |
| Sinus plate erosion | 100 | 97.01 | 60 | 100 | 97.14 |
| High jugular bulb | 100 | 95.38 | 62.5 | 100 | 95.71 |
| Labyrinthitis ossificans | 100 | 100 | 100 | 100 | 100 |