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Nine different patients with iNPH. A, Evans index = x/y. B, Callosal angle. C, Narrow medial sulci and 2 focally dilated sulci on the left side. D, DESH. E, A flow void in the aqueduct and fourth ventricle graded as 2. In addition, a flow void in the foramina of Monro. F, Large diameter of the third ventricle. G, Dilated temporal horns. H, DWMH graded as 3 in a patient who also has PVH. I, PVH graded as 2.
