Why the study?
What are the optimal duplex sonographic criteria for diagnosing severe carotid stenoses compared to angiographic methods?
Population
Patients undergoing evaluation for carotid stenosis (retrospective cohort)
Comparison
Duplex sonography vs Angiographic measurements
Design
Cohort
Authors
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Velocity criteria for severe carotid stenosis vary by angiographic method; supports method-specific thresholds but leaves open prospective validation before practice change.
What are the optimal duplex sonographic criteria for diagnosing severe carotid stenoses compared to angiographic methods?
Optimal duplex sonographic velocity criteria for severe carotid stenosis vary depending on the angiographic grading method used as the reference standard.
Staikov et al. (2002) studied this question.
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