Fractional Flow Reserve/Instantaneous Wave-Free Ratio Discordance in Angiographically Intermediate Coronary Stenoses: An Analysis Using Doppler-Derived Coronary Flow Measurements

Conclusions
FFR/iFR disagreement was explained by differences in hyperemic coronary flow velocity. Furthermore, coronary stenoses classified as FFR+/iFR– demonstrated similar coronary flow characteristics to angiographically unobstructed vessels.

Source: Journal of the American College of Cardiology: Cardiovascular Interventions - December 18, 2017 Category: Cardiology Authors: Cook, C. M., Jeremias, A., Petraco, R., Sen, S., Nijjer, S., Shun-Shin, M. J., Ahmad, Y., de Waard, G., van de Hoef, T., Echavarria-Pinto, M., van Lavieren, M., Al Lamee, R., Kikuta, Y., Shiono, Y., Buch, A., Meuwissen, M., Danad, I., Knaapen, P., Maehara Tags: Focus on Coronary Imaging and Physiology Source Type: research