Key result
Colour flow Doppler ultrasound demonstrated 92.4% accuracy (95% CI 88.4-95.4%) for detecting both 50% and 70% carotid stenosis, suggesting routine digital subtraction angiography is unnecessary.
Why the study?
Does colour flow Doppler ultrasound accurately diagnose clinically significant carotid stenosis compared to digital subtraction angiography in patients before carotid endarterectomy?
Population
116 patients undergoing colour flow Doppler ultrasound of the carotid bifurcation before carotid…
Comparison
Colour flow Doppler ultrasound (CFD) vs Digital subtraction angiography (DSA)
Design
Cohort
Authors
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May support selective angiography omission in unequivocal cases; leaves open prospective validation before practice change.
Cross-Sectional (n=116)
No
Does colour flow Doppler ultrasound accurately diagnose clinically significant carotid stenosis compared to digital subtraction angiography in patients before carotid endarterectomy?
Colour flow Doppler ultrasound has high diagnostic accuracy for detecting clinically significant carotid stenosis, suggesting routine digital subtraction angiography may be unnecessary when CFD is unequivocal.
Dinkel et al. (2001) conducted a cross-sectional in Carotid bifurcation stenosis (n=116). Colour flow Doppler ultrasound (CFD) vs. Digital subtraction angiography (DSA) was evaluated on Diagnostic accuracy (sensitivity, specificity, accuracy) for 50% and 70% stenosis. Colour flow Doppler ultrasound demonstrated 92.4% accuracy (95% CI 88.4-95.4%) for detecting both 50% and 70% carotid stenosis, suggesting routine digital subtraction angiography is unnecessary.
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