Abbreviations:
3VT, three-vessel trachea; 3VV, three-vessel vein; 4CV, four chamber view; Azy, azygos vein; BITA, bilateral internal thoracic arteries; BPAB, branch pulmonary artery bifurcation; BSA, bilateral subclavian arteries; Color-R-flow, Color Doppler combined with radiant flow; CHD, congenital heart disease; HD-flow, high definition flow imaging; HD-R-flow; high definition flow imaging combined with radiant flow; LIV, left innominate vein; R-flow, radiant flow; SVC, superior vena cava.