Why the study?
Can duplex ultrasonographic velocity patterns in the common carotid artery accurately detect the severity of internal carotid artery disease?
Population
156 patients with arteriographically verified internal carotid artery disease
Design
Cross-sectional
Authors
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May signal either ICA occlusion or 90-99% stenosis on duplex ultrasound; hypothesis-generating and requires prospective validation before refining diagnostic thresholds.
Can duplex ultrasonographic velocity patterns in the common carotid artery accurately detect the severity of internal carotid artery disease?
Flow to zero during diastole in the common carotid artery on duplex ultrasound can indicate either total occlusion or high-grade (90-99%) stenosis of the internal carotid artery.
Paul J. Breslau (1982) studied this question.
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