Renal artery stenosis: analysis of Doppler waveform parameters and tardus-parvus pattern.

Published

Journal Article

PURPOSE: The utility of Doppler parameters and waveform contour analysis for diagnosis of renal artery stenosis was studied in a hypertensive population screened for renovascular hypertension. MATERIALS AND METHODS: The Doppler results were compared with those obtained with angiography in a prospective double-blind study involving 118 kidneys in 46 patients with hypertension and 11 potential renal donors with normal blood pressure. Doppler parameters measured in the distal renal artery included systolic acceleration, acceleration time, peak systolic velocity, deceleration in late systole, pulsatility and resistivity indexes, and waveform features in early systole. RESULTS: Angiograms demonstrated 28 stenotic renal arteries. There was no significant difference between stenotic (> 50% diameter narrowing) and nonstenotic renal arteries for any parameters studied. When stenosis was further categorized as moderate (50%-79%) or severe (80%-95%), significant (P < .05) differences for acceleration time and systolic acceleration were found between nonstenotic and severely stenotic arteries. CONCLUSION: Doppler characterization of the tardus-parvus phenomenon in the distal renal artery is not an adequate screening method for detection of renal artery stenosis.

Full Text

Duke Authors

Cited Authors

  • Kliewer, MA; Tupler, RH; Carroll, BA; Paine, SS; Kriegshauser, JS; Hertzberg, BS; Svetkey, LP

Published Date

  • December 1993

Published In

Volume / Issue

  • 189 / 3

Start / End Page

  • 779 - 787

PubMed ID

  • 8234704

Pubmed Central ID

  • 8234704

International Standard Serial Number (ISSN)

  • 0033-8419

Digital Object Identifier (DOI)

  • 10.1148/radiology.189.3.8234704

Language

  • eng

Conference Location

  • United States