| Diagnostic Indices | Direct Digital/Coronal | Digital Subtraction/ Coronal | Direct Digital/Apical | Digital Subtraction/ Apical |
| Sensitivity | 90% | 90% | 100% | 100% |
| Specificity | 100% | 100% | 90% | 100% |
| PPV | 100% | 100% | 90.9% | 100% |
| NPV | 90.9% | 100% | 100% | 100% |
| Accuracy | 95% | 100% | 95% | 100% |