There is a literature discussing this, but we have never been convinced that there is a clear adjustment for the threshold when the contralateral ICA is occluded (sensitivity and specificity not great for any proposed threshold that we have seen) so I try to incorporate a comment in my reading that just says something like "This may be an overestimate of stenosis due to compensatory flow related to contralateral internal carotid artery occlusion."
Joseph R. Schneider, M.D., Ph.D., F.A.C.S.
Vascular and Interventional Program of Central DuPage Hospital
Ambulatory Services Pavilion Suite 201
25 North Winfield Road
Winfield, IL 60190
Professor of Surgery, Northwestern University Medical School
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>ICAVL requesting the criteria for carotid doppler study where one ICA is
occluded and� contralateral ICA stenosis could be overestimated because of
compensatory effect. How much overestemated. I need criteria.