AJR ARRS Membership
HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS
QUICK SEARCH:   [advanced]


     

This Article
Right arrow Full Text (PDF)
Right arrow Alert me when this article is cited
Right arrow Alert me if a correction is posted
Services
Right arrow Email this article to a friend
Right arrow Similar articles in this journal
Right arrow Similar articles in PubMed
Right arrow Alert me to new issues of the journal
Right arrow Download to citation manager
Right arrow reprints & permissions
Citing Articles
Right arrow Citing Articles via HighWire
Right arrow Citing Articles via Google Scholar
Google Scholar
Right arrow Articles by Gottlieb, R. H.
Right arrow Articles by Rubens, D. J.
Right arrow Search for Related Content
PubMed
Right arrow PubMed Citation
Right arrow Articles by Gottlieb, R. H.
Right arrow Articles by Rubens, D. J.
Social Bookmarking
Add to CiteULike   Add to Complore   Add to Connotea   Add to Del.icio.us   Add to Digg   Add to Reddit   Add to Technorati  
What's this?

American Journal of Roentgenology, Vol 168, 627-631, Copyright © 1997 by American Roentgen Ray Society

ARTICLES

Interobserver and intraobserver variation in determining intrarenal parameters by Doppler sonography

RH Gottlieb, EL Snitzer, DF Hartley, PJ Fultz and DJ Rubens
Department of Radiology, University of Rochester School of Medicine and Dentistry, NY 14642-8648, USA.

OBJECTIVE: This study identified the extent of inter- and intraobserver variation in assessing intrarenal Doppler waveform parameters. SUBJECTS AND METHODS: Optimized Doppler waveforms from the interlobar arteries of five healthy volunteers were recorded. The waveforms were digitized for off-line evaluation by six observers. Using the same set of waveforms, the observers initially selected three of six waveforms for each subject on the basis of their preference for clinical usefulness. The observers then were directed to evaluate three previously picked waveforms. The systolic acceleration time (SAT) and the resistive index were calculated from each waveform. The observers also characterized the shape of each waveform according to four categories. RESULTS: Significant interobserver (p < .01) but not intraobserver variation occurred when measuring the SAT. Differences were caused by the observers' perceptions of waveform shapes (kappa = .12, p < .01) as well as the observers choosing different systolic starting points. No significant inter- or intraobserver variation occurred in measuring the resistive index. CONCLUSION: Much variability among and within laboratories can be expected when observers of Doppler waveforms use SAT to evaluate patients for renal artery stenosis.
Add to CiteULike CiteULike   Add to Complore Complore   Add to Connotea Connotea   Add to Del.icio.us Del.icio.us   Add to Digg Digg   Add to Reddit Reddit   Add to Technorati Technorati    What's this?


This article has been cited by other articles:


Home page
 RadiologyHome page
M. J. A. Sharafuddin, C. A. Raboi, M. Abu-Yousef, W. J. Lawton, and J. A. Gordon
Renal Artery Stenosis: Duplex US after Angioplasty and Stent Placement
Radiology, July 1, 2001; 220(1): 168 - 173.
[Abstract] [Full Text] [PDF]


HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS
Copyright © 1997 by the American Roentgen Ray Society.