Figure 4From: Diagnosis of idiopathic normal pressure hydrocephalus is supported by MRI-based scheme: a prospective cohort studyBar chart showing the distribution of Evans' index in the patient population. The mean Evans' index was 35.6 ± 4.0% ranging 0.30 to 0.48, which indicated that the dilation of lateral ventricle in this group was mild to moderate, and marked dilation was rare.Back to article page