Atrial fibrillation (AF) is the most common irregular heartbeat among the world's population and is a major contributor to cardiogenic embolisms and acute ischemic stroke (AIS). However, the role AF flow plays in the trajectory paths of cardiogenic emboli has not been experimentally investigated. A physiological simulation system was designed to analyze the trajectory patterns of bovine embolus analogs (EAs) (n = 720) through four patient-specific models, under three flow conditions: steady flow, normal pulsatile flow, and AF pulsatile flow. It was seen that EA trajectory paths were proportional to the percentage flowrate split of 25–31% along the branching vessels. Overall, AF flow conditions increased trajectories through the left- (LCCA) and right (RCCA)-common carotid artery by 25% with respect to normal pulsatile flow. There was no statistical difference in the distribution of clot trajectories when the clot was released from the right, left, or anterior positions. Significantly, more EAs traveled through the brachiocephalic trunk (BCT) than through the LCCA or the left subclavian. Yet of the EAs that traveled through the common carotid arteries, there was a greater affiliation toward the LCCA compared to the RCCA (p < 0.05).
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October 2019
Research-Article
Embolus Analog Trajectory Paths Under Physiological Flowrates Through Patient-Specific Aortic Arch Models
F. Malone,
F. Malone
GMedTech,
Department of Mechanical and
Industrial Engineering,
Galway-Mayo Institute of Technology,
Galway H91 T8NW, Ireland
e-mail: fiona.malone@gmit.ie
Department of Mechanical and
Industrial Engineering,
Galway-Mayo Institute of Technology,
Galway H91 T8NW, Ireland
e-mail: fiona.malone@gmit.ie
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E. McCarthy,
E. McCarthy
GMedTech,
Department of Mechanical and
Industrial Engineering,
Galway-Mayo Institute of Technology,
Galway H91 T8NW, Ireland
Department of Mechanical and
Industrial Engineering,
Galway-Mayo Institute of Technology,
Galway H91 T8NW, Ireland
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P. Delassus,
P. Delassus
GMedTech,
Department of Mechanical and
Industrial Engineering,
Galway-Mayo Institute of Technology,
Galway H91 T8NW, Ireland
Department of Mechanical and
Industrial Engineering,
Galway-Mayo Institute of Technology,
Galway H91 T8NW, Ireland
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J. H. Buhk,
J. H. Buhk
Department of Diagnostic and
Interventional Neuroradiology,
University Medical Center Hamburg-Eppendorf,
Hamburg 20246, Germany
Interventional Neuroradiology,
University Medical Center Hamburg-Eppendorf,
Martinistr. 52
,Hamburg 20246, Germany
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J. Fiehler,
J. Fiehler
Department of Diagnostic and
Interventional Neuroradiology,
University Medical Center Hamburg-Eppendorf,
Hamburg 20246, Germany
Interventional Neuroradiology,
University Medical Center Hamburg-Eppendorf,
Martinistr. 52
,Hamburg 20246, Germany
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L. Morris
L. Morris
GMedTech,
Department of Mechanical and
Industrial Engineering,
Galway-Mayo Institute of Technology,
Galway H91 T8NW, Ireland
e-mail: liam.morris@gmit.ie
Department of Mechanical and
Industrial Engineering,
Galway-Mayo Institute of Technology,
Galway H91 T8NW, Ireland
e-mail: liam.morris@gmit.ie
Search for other works by this author on:
F. Malone
GMedTech,
Department of Mechanical and
Industrial Engineering,
Galway-Mayo Institute of Technology,
Galway H91 T8NW, Ireland
e-mail: fiona.malone@gmit.ie
Department of Mechanical and
Industrial Engineering,
Galway-Mayo Institute of Technology,
Galway H91 T8NW, Ireland
e-mail: fiona.malone@gmit.ie
E. McCarthy
GMedTech,
Department of Mechanical and
Industrial Engineering,
Galway-Mayo Institute of Technology,
Galway H91 T8NW, Ireland
Department of Mechanical and
Industrial Engineering,
Galway-Mayo Institute of Technology,
Galway H91 T8NW, Ireland
P. Delassus
GMedTech,
Department of Mechanical and
Industrial Engineering,
Galway-Mayo Institute of Technology,
Galway H91 T8NW, Ireland
Department of Mechanical and
Industrial Engineering,
Galway-Mayo Institute of Technology,
Galway H91 T8NW, Ireland
J. H. Buhk
Department of Diagnostic and
Interventional Neuroradiology,
University Medical Center Hamburg-Eppendorf,
Hamburg 20246, Germany
Interventional Neuroradiology,
University Medical Center Hamburg-Eppendorf,
Martinistr. 52
,Hamburg 20246, Germany
J. Fiehler
Department of Diagnostic and
Interventional Neuroradiology,
University Medical Center Hamburg-Eppendorf,
Hamburg 20246, Germany
Interventional Neuroradiology,
University Medical Center Hamburg-Eppendorf,
Martinistr. 52
,Hamburg 20246, Germany
L. Morris
GMedTech,
Department of Mechanical and
Industrial Engineering,
Galway-Mayo Institute of Technology,
Galway H91 T8NW, Ireland
e-mail: liam.morris@gmit.ie
Department of Mechanical and
Industrial Engineering,
Galway-Mayo Institute of Technology,
Galway H91 T8NW, Ireland
e-mail: liam.morris@gmit.ie
Manuscript received April 9, 2018; final manuscript received May 13, 2019; published online July 15, 2019. Assoc. Editor: C. Alberto Figueroa.
J Biomech Eng. Oct 2019, 141(10): 101007 (12 pages)
Published Online: July 15, 2019
Article history
Received:
April 9, 2018
Revised:
May 13, 2019
Citation
Malone, F., McCarthy, E., Delassus, P., Buhk, J. H., Fiehler, J., and Morris, L. (July 15, 2019). "Embolus Analog Trajectory Paths Under Physiological Flowrates Through Patient-Specific Aortic Arch Models." ASME. J Biomech Eng. October 2019; 141(10): 101007. https://doi.org/10.1115/1.4043832
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