Summary of imaging findings on postnatal MR imaging in the cohort as a whole
| Imaging Finding | % of Cohort |
|---|---|
| Cerebellar ectopia | 63.7% (65/102) |
| Postnatal Chiari grade | |
| 1 | 36.3% (37/102) |
| 2 | 26.5% (27/102) |
| 3 | 37.3% (38/102) |
| Effacement of prepontine cistern | 14.7% (15/102) |
| Lateral ventricular size | |
| Normal | 4.9% (5/102) |
| Mild-moderate ventriculomegaly | 21.6% (22/102) |
| Severe ventriculomegaly | 51% (52/102) |
| Extreme ventriculomegaly | 22.5% (23/102) |
| Lateral ventricular rupture | 2.9% (3/102) |
| Extra-axial CSF effacement | 22.5% (23/102) |