Moving short axis clip demonstrating left-to-right flow at a large membranous ventricular septal defect (VSD). The color flow jet of systolic left-to-right flow can be seen coursing from the left ventricular outflow tract into the right ventricle.
LA: left atrium; RA: right atrium; RV: right ventricle; LVOT: left ventricular outflow tract; PA: pulmonary artery; arrow: VSD.