Accuracy of carotid plaque detection and intima-media thickness measurement with ultrasonography in routine clinical practice

European Journal of Internal Medicine
A RayM V Huisman

Abstract

Current guidelines in cardiovascular disease prevention advocate the use of carotid ultrasound measurements for risk stratification. Carotid abnormalities (plaques or increased intima-media thickness (IMT)) are associated with high risk of coronary and peripheral artery disease. An office-based measurement by clinicians would considerably broaden the clinical applicability of carotid ultrasound. In the present study we have assessed the accuracy of ultrasound detection of carotid plaques and intima-media thickness by trained internists in a routine outpatient setting. Carotid ultrasound was performed in 112 vascular outpatients by internists, after a six-week training period. The internists' results were independently compared to the reference standard, consisting of carotid ultrasound performed in a specialized vascular laboratory. Sensitivity and specificity were calculated for plaque detection and IMT determination. The mean time required to perform the scans on the outpatient department was 7.3 min (range 4.5 to 16.7 min). A high level of accuracy for detecting plaques (sensitivity 78.5%; specificity 93.6%) was achieved. Identifying abnormal IMT had lower sensitivity but adequate specificity of 46.7% and 87.6%, respectively...Continue Reading

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Citations

May 31, 2012·European Heart Journal Cardiovascular Imaging·Stijn C H van den OordArend F L Schinkel
Dec 26, 2012·The American Journal of Cardiology·Stijn C H van den OordArend F L Schinkel
Dec 17, 2014·Critical Ultrasound Journal·Tina Bhandari, Steven J Socransky

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