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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%