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.