Table 1.

Clarification of Echocardiographic Findings

Included (if otherwise normal intracardiac anatomy)	Excluded
Patent foramen ovale	Cardiac malposition
Tiny patent ductus arteriosus	Left superior vena cava
Mild peripheral pulmonic stenosis without branch pulmonary artery hypoplasia in infancy	Interrupted inferior vena cava
Tiny coronary artery fistula	Abnormal coronary artery origin
Retro-aortic innominate vein	Absent aortic arch image
Common origin of right innominate and left carotid arteries	Right aortic arch
Chest wall deformity	Aberrant subclavian artery
Clinical suspicion of connective tissue disorder without evidence for connective tissue disorder	Direct origin of a vertebral artery from the aortic arch
Clinical suspicion of Kawasaki disease with normal coronary arteries and no history of Kawasaki disease treatment