Table 1 Diagnostic value of 2D Echo and coronary flow reserve
From: Coronary flow reserve in stress-echo lab. From pathophysiologic toy to diagnostic tool
Sensitivity | CI 95% | Specificity | CI 95% | Accuracy | CI 95% | |
|---|---|---|---|---|---|---|
2D Echo | 74% | 64–84% | 91% | 87–96% | 86% | 82–91% |
Coronary Flow Reserve (cut-off = 2) | 89% | 81–96% | 77% | 71–84% | 81% | 76–86% |
Coronary Flow Reserve (cut-off = 1,9) | 81% | 72–90% | 84% | 79–90% | 83% | 79–88% |
Coronary Flow Reserve (cut-off = 1,8) | 69% | 58–79% | 90% | 85–95% | 83% | 79–88% |
Coronary Flow Reserve (cut-off = 1,7) | 63% | 52–74% | 97% | 94–99% | 86% | 82–91% |
Coronary Flow Reserve (cut-off = 1,6) | 50% | 38–61% | 100% | - | 85% | 80–89% |
Coronary Flow Reserve (cut-off = 1,5) | 30% | 19–41% | 100% | - | 79% | 73–84% |
2D Echo / CFR cut-off = 1,9 | 90% | 81–98% | 94% | 91–98% | 93% | 89–97% |