title: [Color-coded duplex sonography of the extracranial arteries supplying the brain: diagnostic significance and sources of error in comparison with i.a. DSA].
abstract: The findings of color Doppler flow imaging of the extracranial cerebral arteries in 75 patients were compared with i.a. DSA. Carotid stenoses greater than 50% and carotid occlusions were shown by sonography with a sensitivity of 91% and a specificity of 97%. The severity of the stenosis was in agreement in 88% of cases using the two methods. Sonography of the vertebral arteries achieved a sensitivity of only 65% and a specificity of 88%. Sonographic examination of the ophthalmic artery in order to demonstrate carotid stenosis achieved a sensitivity of only 29% and provided no additional information. Retrobulbar kinking of the ophthalmic artery was found in 30/178 vessels and may be a cause of misinterpretation.
authors.affiliation: Institut für Röntgendiagnostik, Universität Würzburg.
authors.forename: A
authors.initials: A
authors.lastname: Tschammler
authors.forename: P
authors.initials: P
authors.lastname: Landwehr
authors.forename: M
authors.initials: M
authors.lastname: Höhmann
authors.forename: R
authors.initials: R
authors.lastname: Moll
authors.forename: G
authors.initials: G
authors.lastname: Wittenberg
authors.forename: K
authors.initials: K
authors.lastname: Lackner
mesh_terms: D015901:Angiography, Digital Subtraction; D001157:Arterial Occlusive Diseases / Q000000981:diagnostic imaging / Q000453:epidemiology*; D002339:Carotid Arteries / Q000000981:diagnostic imaging; D006801:Humans; D009880:Ophthalmic Artery / Q000000981:diagnostic imaging; D012189:Retrospective Studies; D014463:Ultrasonography / Q000379:methods*; D014711:Vertebral Artery / Q000000981:diagnostic imaging
vernacular_title: Farbkodierte Duplexsonographie der extrakraniellen hirnversorgenden Arterien: diagnostische Aussagekraft und Fehlerquellen im Vergleich zur i.a. DSA.