Figure legends:
The added planes acquired by Color-R-flow and HD-R-flow in a fetus of 25 week. A. three-vessel view (3VV), B. branch pulmonary artery bifurcation view (BPAB), C. three-vessel trachea view (3VT), D. the left innominate vein and azygos vein view, E. the bilateral subclavian arteries view, F. the bilateral internal thoracic arteries view.
AA, aortic arch; AO, ascending aorta; AzV, azygos vein; DA, ductus arteriosus; DAO, descending aorta; L-ITA, left internal thoracic artery; LIV, left innominate vein; LPA, left pulmonary artery; LSA, left subclavian artery; MPA, main pulmonary artery; R-ITA, right internal thoracic artery; RPA, right pulmonary artery; RSA, right subclavian artery; SVC, superior vena cava; T, trachea.