Comparison of Auscultation,Continuous Wave Doppler Imaging,Intravenous Digital Subtraction Angiography and Conventional Angiography in Diagnosis of Carotid Artery Disease
Restricted accessResearch articleFirst published online November, 1987
Comparison of Auscultation,Continuous Wave Doppler Imaging,Intravenous Digital Subtraction Angiography and Conventional Angiography in Diagnosis of Carotid Artery Disease
The reliability of auscultation, continuous wave (CW) Doppler imaging, and intravenous digital subtraction angiography (IV DSA) in the assessment of carotid artery disease has been evaluated in comparison with conventional angiography in 30 patients. With auscultation, specificity and sensitivity for internal carotid artery (ICA) stenosis of 50% or more were 81% and 67% respectively. CW Doppler imaging detected ICA stenosis of 50% or more with a sensitivity of 83% and a specificity of 92% and ICA occlusion with a sensitivity of 60%. The specificity of IV DSA was 95% and the sensitivity for ICA stenosis of 50% or more and ICA occlusion were 75% and 100% respectively. Combining CW Doppler and IV DSA findings raised sensitivity for ICA stenosis of 50% or more and ICA occlusion to 89% and 100% respectively and specificity to 95%. The combination of CW Doppler and IV DSA is a safe and accurate test battery in the detection and categorization of carotid disease.
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