Dementia with leucoaraiosis and dural arteriovenous malformation: clinical and PET case study.
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.
Nencini
P
P
Department of Neurological and Psychiatric Sciences, University of Florence, Italy.
Inzitari
D
D
Gibbs
J
J
Mangiafico
S
S
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