[Doppler and duplex sonography of the vertebral arteries].
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.
Delcker
A
A
Neurologische Universitätsklinik Essen.
Timmann
D
D
Diener
H C
HC
Jüptner
M
M
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*
Die Doppler- und Duplexsonographie der Vertebralarterien.