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Figure 4 Sensitivity and Specificity of MPR to Detect CAD With FFR  0.75
Graphics showing sensitivity (Sens), specificity (Spec), and predictive values of myocardial perfusion reserve (MPR) using a cutoff of 2.04 as determined by receiver-operating curve analysis to detect coronary artery disease (CAD) with fractional flow reserve (FFR) 0.75. Heterogeneity of variance in MPR levels correlated with FFR was evaluated by Welch approximation for unequal variances from the independent-sample t test (p = 0.008).
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