Abstract
Ultrasonography of the brain-supplying arteries is a non-invasive and highly efficient
technique for the assessment of a stenosis or a vessel occlusion in patients with
cerebrovascular diseases. This article reviews the examination technique for a standardized
ultrasound assessment of the extracranial carotid and vertebral arteries. It further
describes the multiparametric grading criteria of internal carotid artery stenosis
and it gives recommendations for a standardised documentation of findings. Additionally,
it proposes recommendations for intima-media thickness measurement and for classifying
atherosclerotic plaques with B-mode ultrasonography. Moreover, criteria for the diagnosis
of in-stent stenoses, vertebral artery dissections and subclavian steal syndrome are
provided.