Three-Dimensional sonography of the posterior fossa in fetuses with Dandy Walker malformation at 11–13 weeks

Ziel: The aim of the study is to assess potential clinical applicability of the 3D-sonography in early prenatal detection of Dandy Walker Malformation (DWM). Methodik: Twenty five 3D volume data sets obtained between 11+0 and 13+6 weeks of gestation in 20 fetuses with normal brain anatomy and 5 fetuses with DWM used for the study. 3D volumes of the fetal head were acquired at the mid-sagittal view. Standardization of each volume was performed in the three orthogonal planes. The brain stem diameter, brain stem to occipital bone diameter, 4th ventricle and cisterna magna were assessed. All measurements were expres…