Measurement variability of carotid atherosclerosis: real-time (B-mode) ultrasonography and angiography.
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.
O'Leary
D H
DH
Department of Diagnostic Radiology, New England Deaconess Hospital, Boston, MA 02215.
Bryan
F A
FA
Goodison
M W
MW
Rifkin
M D
MD
Gramiak
R
R
Ball
M
M
Bond
M G
MG
Dunn
R A
RA
Goldberg
B B
BB
Toole
J F
JF
D002340:Carotid Artery Diseases / Q000175:diagnosis*; D002533:Cerebral Angiography / Q000592:standards*; D002986:Clinical Trials as Topic; D006801:Humans; D002537:Intracranial Arteriosclerosis / Q000175:diagnosis*; D011897:Random Allocation; D014463:Ultrasonography