Ultrasound findings associated with trisomy 21 may be divided into 2 groups. The first group comprises the common major malformations associated with Down syndrome, such as duodenal atresia and ...

And since 3D ultrasounds and 4D sonograms allow you to see your unborn ... It’s frequently combined with a blood test and used to screen for several types of trisomy, including Down syndrome. During ...

Many investigators have reported the association between each isolated ultrasound marker and the risk for Down syndrome. Vintzileos and associates [19] reported the incidence of ultrasound markers ...