title: CT angiography of the circle of Willis: is spiral technology always necessary?
authors.forename: J H
authors.initials: JH
authors.lastname: Brown
authors.forename: E S
authors.initials: ES
authors.lastname: Lustrin
authors.forename: M H
authors.initials: MH
authors.lastname: Lev
authors.forename: J M
authors.initials: JM
authors.lastname: Taveras
mesh_terms: D000328:Adult; D000792:Angiography / Q000295:instrumentation*; D002340:Carotid Artery Diseases / Q000000981:diagnostic imaging; D002941:Circle of Willis / Q000000981:diagnostic imaging*; D004867:Equipment Design; D005260:Female; D006801:Humans; D002532:Intracranial Aneurysm / Q000000981:diagnostic imaging; D008297:Male; D012680:Sensitivity and Specificity; D014057:Tomography, X-Ray Computed / Q000295:instrumentation*