Rapid Three-Dimensional Segmentation of the Carotid Bifurcation From Serial MR Images

[+] Author and Article Information
H. M. Ladak

Imaging Research Labs, The John P. Robarts Research Institute, 100 Perth Dr., P.O. Box 5015, London, ON, Canada N6A 5K8

J. S. Milner, D. A. Steinman

Imaging Research Labs, The John P. Robarts Research Institute, 100 Perth Dr., P.O. Box 5015, London, ON, Canada N6A 5K8 Department of Medical Biophysics, University of Western Ontario, London, ON, Canada N6A 5K8 steinman@irus.rri.on.ca

J Biomech Eng 122(1), 96-99 (Aug 22, 1999) (4 pages) doi:10.1115/1.429646 History: Received March 31, 1999; Revised August 22, 1999
Copyright © 2000 by ASME
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Grahic Jump Location
Stages of segmentation/reconstruction using the virtual balloon. (a) Early inflation stage. (b) Midway through inflation stage. (c) After inflation and during edge localization. (d) Final surface after edge localization and adding extensions. (e) Surface reconstructed using two-dimensional technique. Parameters for the balloon: kiinf=1.0,kiedge=1.0, and kitens=0.75. Arrow indicates where external branch is cut prior to adding flow extensions. At this location, the balloon is beginning to seep into a side branch. CCA=common carotid artery, ICA=internal carotid artery, ECA=external carotid artery.
Grahic Jump Location
(ab) Time-averaged wall shear stress magnitude (normalized to the value at the common carotid artery). (a) For model generated using three-dimensional technique. (b) For model generated using previous two-dimensional technique. (cd) Oscillatory shear index. (c) Three-dimensional technique. (d) Two-dimensional technique.




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