title: Subtraction helical CT angiography of intra- and extracranial vessels: technical considerations and preliminary experience--rediscovery of matched mask bone elimination?
authors.forename: Hank W
authors.initials: HW
authors.lastname: Venema
authors.forename: Gerard J
authors.initials: GJ
authors.lastname: den Heeten
mesh_terms: D002343:Carotid Artery, Internal / Q000000981:diagnostic imaging / Q000473:pathology*; D016893:Carotid Stenosis / Q000175:diagnosis*; D002533:Cerebral Angiography; D002536:Cerebral Arteries / Q000000981:diagnostic imaging / Q000473:pathology*; D006801:Humans; D002532:Intracranial Aneurysm / Q000175:diagnosis*; D013382:Subtraction Technique; D036542:Tomography, Spiral Computed