Table 3: Diagnostic accuracy of both methods.
| MPS | Stress Echo | |
| Sensitivity | 100% | 90% |
| Specificity | 50% | 60% |
| Accuracy | 81% | 81% |
| PPV | 77% | 77% |
| NPV | 100% | 90% |
MPS: Myocardial Perfusion Scintigraphy; Echo: Echocardiography; PPV: Positive Predictive Value; NPV: Negative Predictive Value.