title: Dementia with leucoaraiosis and dural arteriovenous malformation: clinical and PET case study.
abstract: A case of rapidly progressive dementia with diffuse leucoaraiosis on CT was attributable to a supratentorial dural arteriovenous malformation. Positron emission tomography (PET) showed low cerebral blood flow and high oxygen extraction ratio throughout the cerebral hemispheres indicating a state of chronic haemodynamic compromise which could predispose to the development of a vascular dementia. CT images of dilated intracerebral veins suggested that a venous drainage overload rather than a vascular steal phenomenon might be involved in the pathophysiology of the dementia of vascular origin.
authors.affiliation: Department of Neurological and Psychiatric Sciences, University of Florence, Italy.
authors.forename: P
authors.initials: P
authors.lastname: Nencini
authors.forename: D
authors.initials: D
authors.lastname: Inzitari
authors.forename: J
authors.initials: J
authors.lastname: Gibbs
authors.forename: S
authors.initials: S
authors.lastname: Mangiafico
mesh_terms: D000328:Adult; D001921:Brain / Q000000981:diagnostic imaging; D003704:Dementia / Q000150:complications* / Q000000981:diagnostic imaging; D004388:Dura Mater / Q000098:blood supply*; D006801:Humans; D002538:Intracranial Arteriovenous Malformations / Q000150:complications* / Q000000981:diagnostic imaging; D008297:Male; D014055:Tomography, Emission-Computed; D014057:Tomography, X-Ray Computed