Table 2.

The ten cases with updated outcome reference diagnosis

	Ultrasonography diagnosis	iuMRI diagnosis	Outcome reference diagnosis at age 6 months	Outcome reference diagnosis at age 3 years*
1	Ventriculomegaly, hypoplastic cerebellar hemispheres	Ventriculomegaly	Ventriculomegaly	Rhombencephalosyapsis
2	Ventriculomegaly	Ventriculomegaly	Ventriculomegaly	Ventriculomegaly, subependymal heterotopia
3	Ventriculomegaly, hypogenesis of corpus callosum	Ventriculomegaly	Ventriculomegaly (due to hydrocephalus)	Tectal plate tumour, hydrocephalus due to aqueduct stenosis, subependymal heterotopia
4	Hypoplastic cerebellar hemispheres	Hypoplastic cerebellar hemispheres	Hypoplastic cerebellar hemispheres	Hypoplastic cerebellar hemispheres, subependymal heterotopia
5	Agenesis of corpus callosum	Hypogenesis of corpus callosum	Hypogenesis of corpus callosum	Hypogenesis of corpus callosum, cyst of the quadrigeminal cistern, polymicrogyria
6†	Ventriculomegaly, hypogenesis of corpus callosum	Ventriculomegaly, hypogenesis of corpus callosum	Not done	Ventriculomegaly
7	Agenesis of corpus callosum	Agenesis of corpus callosum Polymicrogyria	Not done	Agenesis of corpus callosum, polymicrogyria
8	Absent cerebellum	Ventriculomegaly, Chiari II malformation	Not done	Ventriculomegaly, Chiari II malformation
9	Ventriculomegaly, agenesis of corpus callosum	Ventriculomegaly	Not done	Ventriculomegaly
10	Hypoplastic cerebellar vermis	Posterior fossa cyst	Not done	Dandy-Walker spectrum abnormality

iuMRI=in-utero MRI.

^*In all cases the outcome reference diagnosis at 3 years was determined using MRI.

^†This case was not included in final analysis because iuMRI occurred more than 2 weeks after the ultrasonography.