title: Doppler sonography in renal artery stenosis. An evaluation of intrarenal and extrarenal imaging parameters.
abstract: A prospective comparison of different direct and indirect Doppler parameters with angiography was performed to determine the most useful Doppler parameters and threshold values for the detection of significant (> or =60%) renal artery stenosis (RAS). The best combination of parameters was found to be the use of direct parameters of peak systolic velocity (PSV) greater than 180 or 200 cm/s and renal aortic ratio (RAR) greater than 3.0 with a sensitivity and specificity at 92% and 88%, respectively.
authors.affiliation: SSK Ankara Eğitim Hastanesi (Social Security Ankara Hospital), Department of Radiology, TR-06110, Dişkapi, Ankara, Turkey. iconbayir@yahoo.com
authors.forename: Işik
authors.initials: I
authors.lastname: Conkbayir
authors.forename: Cüneyt
authors.initials: C
authors.lastname: Yücesoy
authors.forename: TahsIn
authors.initials: T
authors.lastname: Edgüer
authors.forename: Bahar
authors.initials: B
authors.lastname: Yanik
authors.forename: UmIt
authors.initials: U
authors.lastname: Yaşar Ayaz
authors.forename: Baki
authors.initials: B
authors.lastname: Hekimoğlu
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D011446:Prospective Studies; D011859:Radiography; D012078:Renal Artery Obstruction / Q000000981:diagnostic imaging*; D012680:Sensitivity and Specificity; D018608:Ultrasonography, Doppler / Q000379:methods*