Figure 3. Two-dimensional TTE, parasternal short-axis, aortic valve level, demonstrates a dilated RA and a large ASD of the secundum type (arrow) with left-to-right flow by color Doppler.

RVOT: Right Ventricle Outflow Tract; AoV: Aortic Valve; TV: Tricuspid Valve; PV: Pulmonary Valve; TTE: transthoracic echocardiography; ASD: Atrial septal defect; RA: Right atrium.