Efficiency of prenatal four-dimensional ultrasound in diagnosis of fetal heart malformations
Objective:To analyze efficiency of prenatal four-dimensional ultrasound in diagnosis of fetal heart malformations.Methods:The clinical data of 98 pregnant women,who underwent prenatal examination and fetal heart malformation were diagnosed by postpartum follow-up in this hospital from June 2021 to December 2023,were retrospectively analyzed.The detection rates of different types of fetal heart malformations by prenatal two-dimensional and four-dimensional ultrasound were compared by using the results of postpartum follow-up diagnosis as the gold standard.Results:Among the 98 fetuses with heart malformations,there were 4 cases of pulmonary valve stenosis,37 cases of ventricular septal defect,2 cases of single atrium,2 cases of right aortic arch,2 cases of right ventricular dysplasia,6 cases of tricuspid atresia,14 cases of tetralogy of Fallot,6 cases of single ventricle,6 cases of persistent left superior vena cava,10 cases of endocardial cushion defect,3 cases of persistent truncus arteriosus,5 cases of transposition of great arteries,and 1 case of total anomalous pulmonary venous drainage.There were no significant differences in the detection rates of pulmonary valve stenosis,single atrium,right aortic arch,right ventricular dysplasia,tricuspid atresia,single ventricle,persistent left superior vena cava,persistent truncus arteriosus,transposition of great arteries and total anomalous pulmonary venous drainage by prenatal two-dimensional and four-dimensional ultrasound(P>0.05).The detection rates of ventricular septal defect,tetralogy of Fallot and endocardial cushion defect by prenatal four-dimensional ultrasonography were higher than those by prenatal two-dimensional ultrasonography,and the differences were statistically significant(P<0.05).Conclusions:The detection rates of ventricular septal defect,tetralogy of Fallot and endocardial cushion defect by prenatal four-dimensional ultrasonography are higher than those by prenatal two-dimensional ultrasonography.