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==Choice of investigation==

'''[[MRI in dementia|MRI of dementia]]''' is the preferable way. '''[[CT in dementia|CT of dementia]]''' offers a reasonable alternative, but has less specificity.<ref name=GraingerAllison>{{cite book|title=Grainger & Allison's Diagnostic Radiology|author=Andy Adam, Adrian K. Dixon, Jonathan H Gillard, Cornelia Schaefer-Prokop, Ronald G. Grainger, David J. Allison|edition=6, revised|publisher=Elsevier Health Sciences|year=2014|isbn=9780702061288}}</ref>