Normative parameters of the Evans Index using Computer Tomography in the Saudi population

Abstract

Objectives: To calculate The Evans Index )EI( in normal Individuals. Ventricular enlargement is referred to as hydrocephalus. Computer tomography )CT( scans are commonly used to investigate such intracranial pathologies. The EI is an important parameter for diagnosing hydrocephalus. Methods:We included all patients who underwent Computer tomography )CT( scan of the brain that was reported as normal. The mean EI was calculated for the whole sample stratified by age, gender, and ethnicity. Patients with an initial report indicating any intracranial pathology, such as hydrocephalus, tumors, hemorrhages, or neurodegenerative disorders, were excluded.