Journal
ANNALS OF BIOMEDICAL ENGINEERING
Volume 36, Issue 9, Pages 1489-1495Publisher
SPRINGER
DOI: 10.1007/s10439-008-9522-z
Keywords
blood flow; aneurysm; endovascular devices; computational fluid dynamics; inflow flux; secondary flow
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To identify shortcomings in the design of conventional endovascular devices, we investigated the inflow features of untreated aneurysms at a variety of arterial bends using computational fluid dynamics. As a preliminary study, we analyzed the steady-state inflow for aneurysms created at U-shaped, twisted, and S-shaped arteries. Both the inflow pattern and inflow flux were strongly influenced by the shape of the artery and the configuration angle of the aneurysm to the artery. We revealed that the secondary flow generated in the parent artery is the dominant factor affecting the inflow. Our results suggest that the arterial geometry and secondary flow should be considered in the design of endovascular devices.
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