Comparison of Non-Invasive Imaging Modalities Digital Subtraction Angiography (DSA), Duplex ultrasound (DUS), CT Angiography (CTA) and MR Angiography (MRA) in Defining Carotid Artery Stenosis and Anatomic Risk in the Setting of Carotid Artery Stenting

Introduction: Carotid artery stenting (CAS) is a percutaneous revascularization strategy that continues to undergo evaluation. Accurate assessment of carotid artery stenosis and anatomic risk is critical to proper patient selection, minimizing procedural risk and hence outcomes with CAS. We compared the ability for DUS, CTA and MRA to accurately characterize carotid stenosis severity (CSS) using DSA as the gold standard. We then compared DSA,...