Table 1:

Summary of imaging findings on fetal MR in the cohort as a whole

Imaging Findings% of Cohort
Cerebellar ectopia92.2% (94/102)
Fetal Chiari grade
    17.8% (8/102)
    212.7% (13/102)
    379.4% (81/102)
Effacement of prepontine cistern92.2% (94/102)
Lateral ventricular size
    Normal20.6% (21/102)
    Mild-moderate ventriculomegaly57.8% (59/102)
    Severe ventriculomegaly21.6% (22/102)
Third ventriculomegaly9.8% (10/102)
Lateral ventricular rupture1% (1/102)
Extra-axial CSF effacement92.1% (94/102)