Predictive Multivariate Regression to Increase the Specificity of Carotid Duplex Ultrasound for High-grade Stenosis in Asymptomatic Patients

Our regression model provides increased specificity of CDUS for high-grade stenosis in patients who have met initial highly sensitive screening criteria. Application of this model may limit the need for additional imaging and increase the threshold for operative intervention in asymptomatic patients with equivocal high-grade carotid stenosis.