Abstract
Introduction: The coronary computed tomography angiography (CCTA) Coronary Artery Disease Reporting and Data System (CAD-RADS) can predict adverse outcomes. Traditionally, dense coronary calcification has left to stenosis severity overestimation. We hypothesised that where CAD-RADS category is assigned due to a predominantly calcified maximal stenosis, the chance of flow-limiting stenosis by CCTA-derived fractional flow reserve (FFRct) would be lower compared to predominantly non-calcified maximal stenoses of the same CAD-RADS grade.
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