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Fetal echocardiogram showing the small aorta with reversed flow by three vessels and trachea view in a case of critical aortic stenosis (a) and a dilated LV with endocardial fibro elastosis in a four-chamber view (b). PA, pulmonary artery; AO, descending aorta; SVC, superior vena cava; L, left; R, right; LA, left atrium; LV, left ventricle; RA, right atrium; RV, right ventricle.
