Pre-treatment TTE: Apical 4 chamber (A4C) view in diastole, showing reduced LV systolic function.A: Left ventricle visually appears dilated in this still image, suggestive of impaired function in diastole; B: The right ventricle visually appears to be non-dilated in this still image, suggestive of normal function in diastole; C: Both atria appear to be normal in size in this still image. TTE: Transthoracic echocardiogram; LV: Left ventricular.