CT-derived Extracellular Volume Fraction in Aortic Stenosis, Cardiac Amyloidosis and Dual Pathology

To investigate CT-derived extracellular volume fraction (CT-ECV) in patients with lone aortic stenosis (AS), dual pathology of AS and transthyretin cardiac amyloidosis (AS-ATTR), and lone ATTR, and to examine the diagnostic performance and optimal cutoff values of CT-ECV for differentiating between patients with lone AS and AS-ATTR, and between patients with lone AS and lone ATTR.