Objective:The objective of this study was to assess prenatal heart screening program by ultasound in our hospital.Methods:20～24 weeks gestation screening scans were performed on 9 685 women.Follow-up data of fetuses was obstained by us.Fetal heart screening was based on four-chamber and outflow tract views.Results:Among 9 685 cases

46 cases of fetal cardiovascular abnormality were found

5 cases were false negative.The sensitivity of the four-chamber view alone was 58.82%

The sensitivity of the combination of the four-chamber and outflow tract views was 86.27%.the specificity was 99.98%.Conclusion:The screening program showed good sensitivity and excellent specificity.Our prenatal heart screening progaram was feasible.