Quantification of stenoses of the extracranial internal carotid artery using vascular ultrasound (CCDS and B-flow) in comparison to 64-slice-multidector-CTA, contrast-enhanced MRA…

Purpose: Assessing the degree of stenosis of the extracranial internal carotid artery (ICA) using vascular ultrasound by colour coded duplex sonography (CCDS) and B-flow in comparison to 64-slice-multidetector-CT-angiography (CTA), contrast-enhanced MR-angiography (ceMRA) and digital subtraction-angiography (DSA). Material and methods: In 21 patients with symptomatic stenosis of the extracranial ICA a diagnostic workup using CCDS, B-flow, CTA, ceMRA and DSA was performed prior to percutaneous stenting. For ultrasound examinations linear transducers (5–10MHz, 9–14MHz) were used. Muiltislice-CTA (collimation 64×0,…