title: [Doppler sonography in the assessment of renal artery stenosis: methods, criteria, significance].
abstract: Renal artery stenosis is a potentially curable cause of hypertension. Angiography as a screening method is invasive and expensive. The Doppler-sonographic evaluation of the renal arteries does not have these disadvantages; however, it is highly operator-dependent. The Doppler-sonographic detection of renal artery stenosis is based on two principles. The first one is to measure the increase of the flow velocity in the stenosis. The other typical finding is a dampened systolic waveform in the poststenotic area [pulsus parvus et tardus].
authors.affiliation: Institut für diagnostische Radiologie, Inselspital, Bern.
authors.forename: M
authors.initials: M
authors.lastname: Braunschweig
mesh_terms: D001783:Blood Flow Velocity; D006439:Hemodynamics; D006801:Humans; D012078:Renal Artery Obstruction / Q000000981:diagnostic imaging* / Q000503:physiopathology; D012079:Renal Circulation; D012680:Sensitivity and Specificity; D018608:Ultrasonography, Doppler / Q000379:methods*
vernacular_title: Doppler-Sonographie zur Abklärung der Nierenarterienstenose: Methoden, Kriterien, Stellenwert.