Coronary Flow Reserve May Be Used to Evaluate the Haemodynamic Significance of a Coronary Stenosis with Normal Fractional Flow Reserve Values: A Computational Fluid Dynamic Study
Today, coronary flow reserve (CFR) is used to evaluate the microcirculation, but not the haemodynamic significance, of coronary stenosis. Fractional flow reserve (FFR) is the gold standard for this purpose, with a cut-off value of 0.8 for intervention. Its simplicity, however, limits its predictive value.