Biomedical Engineering Reference
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Fig. 7.19
Reconstruction of carotid artery case studies. Carotid bifurcations of 6 patients forming
10 arterial case studies are labelled from 1 to 6, with the symbol “/R” and “/L” representing left
and right carotid arteries respectively. The geometry, which is labelled as “3”, pertains to the left
carotid artery of a healthy normal. ICA—internal carotid artery; ECA—external carotid artery;
CCA—common carotid artery
flows of different patients at the same blood vessel location are then analysed for a
relationship between the geometry and blood flow property. The flow parameters
discussed include geometry, and wall shear stress.
7.3.2
Comparison of Anatomical Geometries
Individual variation in the human arteries may be considerable. The imaged bifur-
cations exhibited some degree of geometrical non-planarity. Subject (1/L) and (3)
being more planar, while (1/R), (2/L) and (2/R) are highly non-planar. The degree of
occlusion is defined by a reduction in the cross-sectional area. The ECA for subject
(1/L) is approximately 60 % occlusion, whereas ICA of subject (1/R) shows more
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