Alteration in Subendocardial and Subepicardial Myocardial Strain in Patients with Aortic Valve Stenosis: An Early Marker of Left Ventricular Dysfunction?

Bilayer ratio can reliably differentiate patients with varying degrees of AS severity and is a sensitive marker of LV function. These findings suggest that the evaluation of subendocardial and subepicardial radial strain might be a novel method for assessing LV mechanics in patients with AS.