Diagnostic agreement of volume and Agatston scoring for aortic valve calcification on non–ECG-gated computed tomography in severe aortic stenosis

Non-ECG-gated CT enables reliable quantification of aortic valve calcium in severe aortic stenosis. Volume scoring demonstrates superior agreement and diagnostic performance compared with Agatston scoring, supporting its use as a robust, density-independent metric for opportunistic assessment of AVC on routine chest CT.