Echocardiographic Characterization of Cardiomyopathy in Friedreich’s Ataxia With Tissue Doppler Echocardiographically Derived Myocardial Velocity Gradients

Abstract
Background—Conventional and tissue Doppler echocardiographically derived myocardial velocity gradients (MVGs) were used to characterize the myocardium in patients with Friedreich’s ataxia (FRDA), a...