Comparison of Angiography and Computer Tomography-Angiography (CTA) with B-Flow (BF) Ultrasound (US) in Carotid Stenoses (CS): Improved Pre-Interventional Evaluation of CS by BF-US

Purpose: Comparison of Stenosis-Grades (CS) of angiography (A), multi-slice CTA (MSCTA) and Ultrasound (US) is mostly performed by measuring percentage carotid artery stenosis (CAS). Purpose: to evaluate the accuracy of MSCTA by using multiplanar reformation (MPR) for measuring CAS compared with that of A and accuracy of BF-US compared with MSCTA at corresponding projections. Patients and methods: CTA of ICA were compared with A in 39 mid to high grade CAS of 25 patients screened by doppler US velocity criteria. CTA were compared with US in 60 CAS of 47 patients by independent viewers. Diameters of CAS were meas…