Computed Tomography (CT)
CT is a relatively inexpensive, quick and non-invasive scan that produces images of brain structures such as the grey matter, white matter, cerebrospinal fluid cavities and blood vessels. These images may also reveal abnormalities such as tumours, strokes, and head injuries. The role of CT imaging in the diagnosis of dementia is primarily one of exclusion. Evidence based guidelines suggest that structural neuro-imaging with either CT or MRI scan is appropriate in the routine initial evaluation of patients with dementia.