Why the study?
Does duplex ultrasound scanning with velocity spectrum analysis accurately detect flow-limiting carotid artery stenosis compared to conventional arteriography in patients undergoing carotid examination?
Population
50 consecutive patients (100 vessels) undergoing carotid artery examination
Comparison
Duplex ultrasound examination of the carotid… vs Conventional carotid arteriography
Design
Cross-sectional
Key result
Duplex ultrasound examination using the velocity ratio criterion achieved an overall accuracy of 88% and sensitivity or specificity up to 97% for detecting flow-limiting carotid stenosis.
Authors
Loading...
May support non-invasive carotid assessment; leaves open prospective validation against arteriography.
Observational (n=50)
Does duplex ultrasound scanning with velocity spectrum analysis accurately detect flow-limiting carotid artery stenosis compared to conventional arteriography in patients undergoing carotid examination?
Duplex ultrasound with velocity spectrum analysis is a highly accurate, sensitive, and specific non-invasive method for detecting flow-limiting carotid artery stenosis.
Garth et al. (1983) conducted an observational in Carotid artery stenosis (n=50). Duplex ultrasound examination vs. Conventional carotid arteriography was evaluated on Detection of flow-limiting stenosis (≥50% stenosis). Duplex ultrasound examination using the velocity ratio criterion achieved an overall accuracy of 88% and sensitivity or specificity up to 97% for detecting flow-limiting carotid stenosis.