title: [Interobserver variability of dialysis shunt flow measurements using color coated duplex sonography].
abstract: A prospective study extending over 4 months was carried out in which 142 shunt volume flow measurements were performed on 43 patients; two up to four operators with varying degrees of experience took part. Flow volumes varied between 51 and 2409 ml/min with an average blood flow volume of 521 ml/min. Comparison of measurements of individual operators showed errors of between 0.5 and 19.8%. Average error was calculated as 11.3%. Shunt flow measurements by colour Doppler sonography provide an easily appreciated and reproducible method for quantifying changes in shunt flow.
authors.affiliation: Institut für Röntgendiagnostik, Universität Würzburg.
authors.forename: G
authors.initials: G
authors.lastname: Wittenberg
authors.forename: P
authors.initials: P
authors.lastname: Landwehr
authors.forename: R
authors.initials: R
authors.lastname: Moll
authors.forename: A
authors.initials: A
authors.lastname: Tschammler
authors.forename: B
authors.initials: B
authors.lastname: Buschmann
authors.forename: T
authors.initials: T
authors.lastname: Krahe
mesh_terms: D000328:Adult; D000368:Aged; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D015588:Observer Variation; D011446:Prospective Studies; D006435:Renal Dialysis / Q000379:methods* / Q000706:statistics & numerical data; D014465:Ultrasonics
vernacular_title: Interobserver-Variabilität von Dialyseshuntflussmessungen mit der farbkodierten Duplexsonographie.