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Poorly Diagnostic Findings

Carotid Artery Stenosis: Sensitivity and Specificity

Introduction: Plaque in the carotid artery can cause stenosis leading to hemodynamic compromise. This is clinically relevant mostly as it applies to an increased risk of Stroke, which can be reduced by a carotid endarterectomy in certain indications (i.e. with a threshold degree of stenosis).

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Tags: Vascular Tag this Diagnosis.

The sensitivity and specificity of findings for Carotid Artery Stenosis are listed below. See the left navigation bar to change the display.

Specific Findings

Finding SensitivitySpecificity Comments, Study
Carotid Bruit
Duplicate Edit

for stenosis >50%. in asymptomatic patients undergoing CABG

Study: Int J Cardiol. 2006 Feb 15;107(2):225-9 PMID: 16412801

Poorly Diagnostic Findings

Finding SensitivitySpecificity Comments, Study
Carotid Bruit
Duplicate Edit

>50% stenosis. in patients referred for carotid ultrasound (bias?)

Study: BMC Neurol. 2008 Jun 24;8:23. PMID: 18577216

Doppler Ultrasound Edit 68%67%

carotid doppler evaluating Peak Systolic Velocity (PSV), for criteria consistent with >70% stenosis. data from NASCET trial

Study: Stroke. 1995 Oct;26(10):1747-52. PMID: 7570719

Carotid Bruit
Duplicate Edit

stenosis >70%. symptomatic patients (TIA or stroke)

Study: Ann Intern Med. 1994 Apr 15;120(8):633-7. PMID: 8135446