Biomaterial Database

[Significance of Doppler ultrasound procedures for diagnosis of carotid stenoses]. 2004

R Kubale, and C Arning

Institut für Radiologie, Sonographie und Nuklearmedizin, Pirmasens. reinhard@kubale.net

Determining degree and morphology of stenoses is important for surgical planning or stent implantation. Vascular ultrasound is usually the first modality to evaluate carotid artery stenosis. Due to rapid development various methods of vascular ultrasound are applied including continuous wave (CW) Doppler, duplex Doppler, colour-coded duplex sonography (CCDS), power Doppler and B-flow technique. For quantitative assessment of the degree of stenosis the most frequently used parameters are peak systolic velocity (PSV), end-diastolic velocity (EDV) in the internal carotid artery (ICA), as well as ICA to CCA ratios of PSV and EDV. Different results reported in the literature may reflect differences in defining the degree of stenosis and methodological differences in protocol or imaging techniques. Differences in defining the degree of stenosis, advantages and disadvantages of the different Doppler techniques and future developments are discussed in detail.

UI	MeSH Term	Description	Entries
D002343	Carotid Artery, Internal	Branch of the common carotid artery which supplies the anterior part of the brain, the eye and its appendages, the forehead and nose.	Arteries, Internal Carotid,Artery, Internal Carotid,Carotid Arteries, Internal,Internal Carotid Arteries,Internal Carotid Artery
D006801	Humans	Members of the species Homo sapiens.	Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D015607	Stents	Devices that provide support for tubular structures that are being anastomosed or for body cavities during skin grafting.	Stent
D016893	Carotid Stenosis	Narrowing or stricture of any part of the CAROTID ARTERIES, most often due to atherosclerotic plaque formation. Ulcerations may form in atherosclerotic plaques and induce THROMBUS formation. Platelet or cholesterol emboli may arise from stenotic carotid lesions and induce a TRANSIENT ISCHEMIC ATTACK; CEREBROVASCULAR ACCIDENT; or temporary blindness (AMAUROSIS FUGAX). (From Adams et al., Principles of Neurology, 6th ed, pp 822-3)	Carotid Artery Narrowing,Carotid Ulcer,Carotid Artery Plaque,Carotid Artery Stenosis,Carotid Artery Ulcerating Plaque,Common Carotid Artery Stenosis,External Carotid Artery Stenosis,Internal Carotid Artery Stenosis,Plaque, Ulcerating, Carotid Artery,Stenosis, Common Carotid Artery,Stenosis, External Carotid Artery,Ulcerating Plaque, Carotid Artery,Artery Narrowing, Carotid,Artery Narrowings, Carotid,Artery Plaque, Carotid,Artery Plaques, Carotid,Artery Stenoses, Carotid,Artery Stenosis, Carotid,Carotid Artery Narrowings,Carotid Artery Plaques,Carotid Artery Stenoses,Carotid Stenoses,Carotid Ulcers,Narrowing, Carotid Artery,Narrowings, Carotid Artery,Plaque, Carotid Artery,Plaques, Carotid Artery,Stenoses, Carotid,Stenoses, Carotid Artery,Stenosis, Carotid,Stenosis, Carotid Artery,Ulcer, Carotid,Ulcers, Carotid
D018608	Ultrasonography, Doppler	Ultrasonography applying the Doppler effect, with frequency-shifted ultrasound reflections produced by moving targets (usually red blood cells) in the bloodstream along the ultrasound axis in direct proportion to the velocity of movement of the targets, to determine both direction and velocity of blood flow. (Stedman, 25th ed)	Doppler Ultrasonography,Doppler Ultrasound,Doppler Ultrasound Imaging,Doppler Ultrasound Imagings,Doppler Ultrasounds,Imaging, Doppler Ultrasound,Imagings, Doppler Ultrasound,Ultrasound Imaging, Doppler,Ultrasound Imagings, Doppler,Ultrasound, Doppler,Ultrasounds, Doppler
D018615	Ultrasonography, Doppler, Color	Ultrasonography applying the Doppler effect, with the superposition of flow information as colors on a gray scale in a real-time image. This type of ultrasonography is well-suited to identifying the location of high-velocity flow (such as in a stenosis) or of mapping the extent of flow in a certain region.	Doppler Ultrasonography, Color,Ultrasonography, Color Doppler,Color Doppler Ultrasonography,Color Ultrasonography, Doppler,Doppler Color Ultrasonography,Ultrasonography, Doppler Color