
Keywords: بطن چپ، بطن چپ; Atrium; Ebstein's anomaly; Tricuspid; Right atrial function; Velocity vector imaging; Fetal echocardiography; APF; Antegrade pulmonary blood flow; ET; Ejection time; IVC; Inferior vena cava; IVCT; Isovolumic contraction time; IVRT; Isovolumic relaxation t