title: Sensitivity and specificity of the EEG versus CT in acute cortical and subcortical stroke.
abstract: 122 patients with acute stroke were examined in order to demonstrate the sensitivity and the specificity of EEG versus CT findings, in distinguishing cortical from subcortical lesions. To do this the electroencephalographic diagnosis performed by two different electroencephalographers was compared with the neuroimaging diagnosis. The results showed a sensitivity of 77% and a specificity of 75%. Furthermore, the EEG findings can also provide physiopathological data, in that the cortical lesions are likely to be due to embolism, while the subcortical lesions are more likely to be due to the pathological process of the intracerebral blood-vessels and the lesions of the watershed territories to hemodynamic phenomena.
authors.affiliation: Chair of Neurophysiology, University of Cagliari, Italy.
authors.forename: S
authors.initials: S
authors.lastname: Congia
authors.forename: A
authors.initials: A
authors.lastname: Cannas
authors.forename: G
authors.initials: G
authors.lastname: Borghero
authors.forename: P
authors.initials: P
authors.lastname: Tacconi
authors.forename: S
authors.initials: S
authors.lastname: Uselli
authors.forename: M
authors.initials: M
authors.lastname: Vacca
authors.forename: P
authors.initials: P
authors.lastname: Ferrigno
authors.forename: R
authors.initials: R
authors.lastname: Ferrai
mesh_terms: D000328:Adult; D000368:Aged; D001921:Brain / Q000503:physiopathology*; D002536:Cerebral Arteries / Q000503:physiopathology; D002561:Cerebrovascular Disorders / Q000503:physiopathology*; D003937:Diagnosis, Differential; D004569:Electroencephalography / Q000379:methods*; D005260:Female; D007839:Functional Laterality; D006801:Humans; D008297:Male; D008875:Middle Aged; D014057:Tomography, X-Ray Computed / Q000379:methods*