Vessel fractional flow reserve (vFFR) vs. optical coherence tomography in chronic coronary syndromes (VISION-FFR).
BACKGROUND Fractional flow reserve (FFR) is the gold standard for evaluating the functional significance of coronary stenosis. With advances in methods based on computational fluid dynamics and three-dimensional vessel reconstructions, non-invasive assessment using indices such as vessel FFR (vFFR) has become feasible....