Video 10.8
Video 10.8: Subcostal short-axis sweep demonstrating a levoatrial cardinal vein. Subcostal short-axis (sagittal) sweep with color mapping in a patient with small restrictive atrial septal defects, mitral atresia, left ventricular hypoplasia, ventricular septal defect, and double outlet right ventricle; the left atrium decompresses into a levoatrial cardinal vein with flow away from the heart into the left innominate vein.