Abstract
Background: A myocardial fractional flow reserve (FFR) <0.75 is associated with increased risk of adverse cardiac events. Recent studies suggest that FFR-guided percutaneous coronary intervention (PCI) is superior to angiography-driven PCI. Newly available three-dimensional quantitative coronary angiography (3D-QCA) reportedly allows more accurate depiction of vessel lumen geometry compared to two-dimensional QCA (2D-QCA). We compared 3D-QCA and 2D-QCA, and the utility of individual angiographic parameters, in predicting FFR.
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