Diagnostic Accuracy of Quantitative Coronary Analysis as Compared with Instantaneous Wave-Free Ratio in Intermediate Coronary Lesions: A Prospective Vessel-Level Study
Background Instantaneous wave-free ratio (IFR) represents a new vasodilator-free innovative approach which is considered as a gold standard for functional assessment of the hemodynamic significance of intermediate coronary stenoses. Although relatively safe, iFR is still an invasive procedure that has its potential haz...