TY - JOUR
AU - Puranen, M
AB - Abstract PURPOSE To evaluate different carotid stenosis estimation methods with digital subtraction angiography. METHODS We assessed the intraobserver reproducibilty and interobserver variability of visual interpretation and the measurement methods used by the European Carotid Surgery Trial and the North American Symptomatic Carotid Endarterectomy Trial. Angiographic stenosis measurements according to both criteria were performed twice by a radiologist, a neurologist, and a vascular surgeon. Eighty bifurcations of consecutive symptomatic patients underwent 480 pairs of measurements. In addition, four radiologists estimated the stenoses visually. RESULTS Intraobserver consistency was slightly better by the European (kappa, 0.86 to 0.94) than by the North American (kappa, 0.68 to 0.91) trial criteria or by visual interpretation (kappa, 0.79 to 0.81). No significant interobserver variability was found, except in the subgroup of mild stenoses by the North American Trial criteria. By kappa statistic, the interobserver agreement was excellent by the European trial method (kappa, 0.72 to 0.86), good by the North American trial method (kappa, 0.59 to 0.77), and good to excellent by visual evaluation (kappa, 0.68 to 0.88). The visual estimation agreed more closely with the European (kappa, 0.73 to 0.92) than with the North American trial (kappa, 0.55 to 0.74) criteria measurements. CONCLUSIONS All three methods have good reproducibility in digital subtraction angiography. Interobserver differences become more important in the estimation of mild stenosis. Copyright © American Society of Neuroradiology CiteULike Complore Connotea Delicious Digg Google+ What's this? « Previous | Next Article » Table of Contents This Article AJNR 1994 15: 1635-1641 » Abstract Services Email this article to a colleague Alert me when this article is cited Alert me if a correction is posted Similar articles in this journal Similar articles in PubMed Download to citation manager Citing Articles Load citing article information Citing articles via CrossRef Citing articles via Web of Science Citing articles via Google Scholar Google Scholar Articles by Vanninen, R. Articles by Puranen, M. Search for related content PubMed PubMed citation Articles by Vanninen, R. Articles by Puranen, M. Related Content Load related web page information Social Bookmarking CiteULike Complore Connotea Delicious Digg Google+ What's this? Hotlight What's Hotlight? Current Issue Volume 32, Issue 9 Alert me to new issues of AJNR About AJNR Subscribe Author Info Submit Online Editorial Board Feedback E-mail Alerts Advertising RSS Home Subscribe Author Info Submit Online Feedback Help Copyright © 2011 by the American Society of Neuroradiology Print ISSN: 0195-6108 Online ISSN: 1936-959X
TI - Carotid stenosis by digital subtraction angiography: reproducibility of the European Carotid Surgery Trial and the North American Symptomatic Carotid Endarterectomy Trial measurement methods and visual interpretation.
DA - 1994-10-01
UR - https://www.deepdyve.com/lp/american-journal-of-neuroradiology/carotid-stenosis-by-digital-subtraction-angiography-reproducibility-of-WE01IzFvJb
VL - 15
IS - 9
DP - DeepDyve
ER -