Table 9: Parameter estimates for SPECT tests.
| Pooled Diagnostic Accuracy | Point Estimate | 95% Lower | 95% Upper |
| CAD diagnosis: Sensitivity | 0.861 | 0.812 | 0.910 |
| CAD diagnosis: Specificity | 0.821 | 0.748 | 0.895 |
| Additional time for test (compared to GXT) | Average | Low | High |
| Inpatient population: Additional days for test | 1.3 | 1.0 | 2.0 |
| Uninterpretable test result | Average | Low | High |
| Outpatient population: % of tests that are uninterpretable | 6.9% | 0.5% | 10.0% |
| Inpatient population: % of tests that are uninterpretable | 7.0% | 0.5% | 10.0% |
Note: Sensitivity and specificity estimates are taken from the effectiveness literature review of SPECT. Other estimates are based on consultations with experts in cardiology.