Journal of the American College of Cardiology · 2011 · 648 citations · 18 references
Intracoronary resistance is naturally constant and minimized during the wave-free period. The instantaneous wave-free ratio calculated over this period produces a drug-free index of stenosis severity comparable to FFR. (Vasodilator Free Measure of Fractional Flow Reserve [ADVISE]; NCT01118481).
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N. H. J. Pijls, J A van Son, R L Kirkeeide et al. · Circulation · 1993 · 1.2K citations
Nico H.J. Pijls, William F. Fearon, Pim A.L. Tonino et al. · Journal of the American College of Cardiology · 2010 · 1.1K citations · Full text
Percutaneous Coronary Intervention, Radiology, Vascular Image +10