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Stroke, Vol 18, 1011-1017, Copyright © 1987 by American Heart Association

ARTICLES

Measurement variability of carotid atherosclerosis: real-time (B-mode) ultrasonography and angiography

DH O'Leary, FA Bryan, MW Goodison, MD Rifkin, R Gramiak, M Ball, MG Bond, RA Dunn, BB Goldberg and JF Toole
Department of Diagnostic Radiology, New England Deaconess Hospital, Boston, MA 02215.

To quantify the within- and between-reader agreement of carotid B-mode ultrasonography and angiography interpretation, images from 117 patients examined by both modalities were read multiple times. Angiographic measurements were more reproducible than those of B-mode scans for all parameters except lesion width, but variations for B-mode scan measurements were similar to those for angiographic measurements. Within-reader agreement on the presence of ulceration was substantial for both modalities, whereas between-reader agreement was poor for B- mode scan and only moderate for angiography.

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