Spontaneous dissections of the internal carotid artery: appearances on colour Doppler ultrasound.

Details

Serval ID
serval:BIB_A4F61C068D58
Type
Article: article from journal or magazin.
Publication sub-type
Case report (case report): feedback on an observation with a short commentary.
Collection
Publications
Title
Spontaneous dissections of the internal carotid artery: appearances on colour Doppler ultrasound.
Journal
British Journal of Radiology
Author(s)
Sidhu P.S., Jonker N.D., Khaw K.T., Patel N., Blomley M.J., Chaudhuri K.R., Frackowiak R.S., Cosgrove D.O.
ISSN
0007-1285 (Print)
ISSN-L
0007-1285
Publication state
Published
Issued date
1997
Volume
70
Pages
50-57
Language
english
Notes
Publication types: Case Reports ; Journal ArticlePublication Status: ppublish
Abstract
Spontaneous dissection of the internal carotid artery (ICA) is an unusual finding. We present an analysis of five patients (aged 40-60 years) with ICA dissections, describing the various flow patterns detected on colour Doppler ultrasound. Particular attention was paid to the presence of a dual lumen, the direction of flow in the false lumen and the velocity/spectral broadening of the Doppler trace obtained from the true and false lumens. Four different patterns were observed. Narrowing of the true lumen by the false lumen thrombus was seen in two cases with a low velocity Doppler waveform; three cases had a patent false lumen ("double lumen" pattern); the direction of flow in the patent false lumen varied from being (i) forward, (ii) reversed and (iii) bidirectional. The flow dynamics in carotid dissections are complex and are primarily dependent upon the presence of thrombus within the false lumen, the entry and exit flaps if the false lumen is patent, the motion of the flap wall and the extent of the dissection. They illustrate the diverse nature of the disease and Doppler ultrasound plays an important role in the imaging of ICA dissections.
Keywords
Adult, Aneurysm, Dissecting/radiography, Aneurysm, Dissecting/ultrasonography, Carotid Artery Diseases/radiography, Carotid Artery Diseases/ultrasonography, Carotid Artery, Internal/radiography, Carotid Artery, Internal/ultrasonography, Female, Humans, Male, Middle Aged, Tomography, X-Ray Computed, Ultrasonography, Doppler, Color
Pubmed
Web of science
Create date
16/09/2011 16:56
Last modification date
20/08/2019 15:10
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