Fig. 1
From: Prenatal diagnosis of Williams-Beuren syndrome by ultrasound and chromosomal microarray analysis
Some typical ultrasound performance in these cases. a The right kidney (RK) of Case 1 showed multicystic dysplastic kidney. b Case 2 showed atrioventricular ratio is out of balance. c The ultrasound image of Case 3 showed the characteristic double bubble sign. d The image of Case 4 showed that two blue blood flow signals of the left and right ventricles respectively enter the aorta. e Case 5 showed mild stenosis of the pulmonary artery. f On the Four-Chamber View, Case 8 showed that the blood flows across the septum. LV left ventricle, LA left atrium, RV right ventricle, RA right atrium, D duodenum, St stomach, AO aorta, PA pulmonary artery, VSD ventricular septal defect