Open AccessUse of sonography to evaluate carotid atherosclerosis in the elderly. The Cardiovascular Health Study. CHS Collaborative Research Group.
Author(s) -
Daniel H. O’Leary,
Joseph F. Polak,
Sidney K. Wolfson,
M. Gene Bond,
William J. Bommer,
Sameer D. Sheth,
Bruce M. Psaty,
A. Richey Sharrett,
Teri A. Manolio
Publication year - 1991
Publication title -
stroke
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 3.397
H-Index - 319
eISSN - 1524-4628
pISSN - 0039-2499
DOI - 10.1161/01.str.22.9.1155
Subject(s) - sonographer , medicine , carotid arteries , internal carotid artery , common carotid artery , cardiology , prospective cohort study , carotid artery disease , ultrasound , population , radiology , carotid endarterectomy , environmental health
Carotid sonography is being performed on more than 5,000 participants in the Cardiovascular Health Study, a prospective, multicenter study of cardiovascular disease in men and women aged 65 years and older. The sonographic methods used to examine and measure the extracranial carotid arteries are described. Initial validation studies were performed on 61 subjects with a mean age of 68.6 years. Analysis of within- and between-sonographer differences and between-reader differences were performed for selected variables. In general, the mean absolute differences for within- and between-sonographer comparisons were small, with even less variability between readers. Variability was less for the common carotid artery than for the internal carotid artery. These data suggest that carotid sonography is a reliable and reproducible method for use in the study of carotid atherosclerosis in population studies.
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