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Table 1 Conventional MRI findings in each group

From: MRI CSF flowmetry in evaluation of different neurological diseases

Group

MRI finding

NPH group (N = 12)

Evan index > 0.3 (N = 12)

Aqueduct flow void sign (N = 5)

Hydrocephalus group (N = 11)

ventricular dilatation

IIH group (N = 7)

Empty sella (N = 4)

Widened perioptic CSF space (N = 5)

Posterior globe flattening (N = 2)

BA group (N = 6)

Widened subarachnoid CSF space and cortical sulci (N = 5)

White matter hyperintensities (N = 2)

CM-I group (N = 3)

Herniation of the cerebellar tonsil beyond the foramen magnum

Syringomyelia

Aqueduct flow void sign

  1. NPH normal pressure hydrocephalus, IIH idiopathic intracranial hypertension, BA brain atrophy, CM-I Chiari malformation type I