title: [Doppler and duplex sonography of the vertebral arteries].
abstract: In a prospective study 451 patients were examined with extracranial CW-Doppler sonography (mastoidal slope), suboccipital transcranial Doppler sonography and colour-coded duplex sonography to evaluate unusual vertebral arteries (hypoplasia, stenosis and occlusion). Colour duplex sonography was used as reference method. CW-Doppler sonography had a sensitivity of 100% and a specificity of 27% for the detection of an unusual vertebral artery. For transcranial Doppler sonography these values are 38% and 58%. Our study showed that CW-Doppler is a useful screening examination for identifying pathological findings of vertebral arteries. In case of abnormalities in CW-Doppler, duplex sonography, especially colour-coded duplex sonography, should be added.
authors.affiliation: Neurologische Universitätsklinik Essen.
authors.forename: A
authors.initials: A
authors.lastname: Delcker
authors.forename: D
authors.initials: D
authors.lastname: Timmann
authors.forename: H C
authors.initials: HC
authors.lastname: Diener
authors.forename: M
authors.initials: M
authors.lastname: Jüptner
mesh_terms: D000328:Adult; D000368:Aged; D001157:Arterial Occlusive Diseases / Q000000981:diagnostic imaging / Q000453:epidemiology; D003251:Constriction, Pathologic / Q000000981:diagnostic imaging / Q000453:epidemiology; D005260:Female; D005858:Germany / Q000453:epidemiology; D006801:Humans; D008297:Male; D008875:Middle Aged; D011446:Prospective Studies; D014463:Ultrasonography / Q000379:methods; D014711:Vertebral Artery / Q000002:abnormalities / Q000000981:diagnostic imaging*
vernacular_title: Die Doppler- und Duplexsonographie der Vertebralarterien.