Parkinsonian Symptomatology May Correlate with CT Findings before and after Shunting in Idiopathic Normal Pressure Hydrocephalus
Figure 1
Measurements for iNPH patients on CT scans. (a) Evans index (ratio of maximum width of the frontal horns to the maximum width of the inner table of the cranium); (b) maximum width of the third ventricle at the foramen of Monro (interventricular foramen); (c) maximum width of the third ventricle at the superior colliculus; (d) anteroposterior (vertical) and left-to-right (horizontal) diameters of the midbrain at pontomesencephalic junction.
