Why the study?
Does direct B-mode image measurement of maximal ICA narrowing reliably predict critical carotid stenoses compared to duplex-derived velocity criteria and arteriography?
Population
192 patients who underwent both arteriography and duplex ultrasonography from January 1995 to November 2000.
Comparison
Direct B-mode image measurement of maximal… vs Duplex-derived velocity criteria and arteriography
Design
Cohort
Authors
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May support adjunctive B-mode measurements to refine carotid stenosis grading; leaves open prospective validation before practice change.
Does direct B-mode image measurement of maximal ICA narrowing reliably predict critical carotid stenoses compared to duplex-derived velocity criteria and arteriography?
Direct B-mode ultrasound measurement of carotid stenosis is as reliable as duplex-derived velocity criteria and improves positive predictive value when used as an adjunct.
MacKenzie et al. (2002) studied this question.
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