Does the Instantaneous Wave-Free Ratio Approximate the Fractional Flow Reserve?

Nils P. Johnson, Richard L. Kirkeeide, Kaleab N. Asrress, William F. Fearon, Timothy Lockie, Koen M. J. Marques, Stylianos A. Pyxaras, M. Cristina Rolandi, Marcel van 't Veer, Bernard De Bruyne, Jan J. Piek, Nico H. J. Pijls, Simon Redwood, Maria Siebes, Jos A. E. Spaan, K. Lance Gould^*

^*Corresponding author for this work