title: CT and hemifacial spasm.
abstract: Forty-six patients with typical hemifacial spasm had CT. Thirty-eight (83%) were abnormal, including two with surgically documented tumors. Thirty-six had a characteristic dolichoectatic vertebrobasilar artery, with the convexity pointing to the side of the spasm in 92% of the scans. This study suggests that CT is worthwhile procedure in the evaluation of hemifacial spasm and that dolichoectatic vertebrobasilar arteries are very frequently associated with hemifacial spasm.
authors.affiliation: Department of Neurology, University of Iowa, Iowa City.
authors.forename: K B
authors.initials: KB
authors.lastname: Digre
authors.forename: J J
authors.initials: JJ
authors.lastname: Corbett
authors.forename: W R
authors.initials: WR
authors.lastname: Smoker
authors.forename: S
authors.initials: S
authors.lastname: McKusker
mesh_terms: D000328:Adult; D000368:Aged; D001921:Brain / Q000000981:diagnostic imaging*; D005145:Face; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D011446:Prospective Studies; D013035:Spasm / Q000000981:diagnostic imaging / Q000209:etiology / Q000503:physiopathology*; D014057:Tomography, X-Ray Computed