Abdominal Aortic Aneurysms (AAA), a focal enlargement of abdominal aorta, is a form of vascular diseases that affects large part of the population. It can cause the mortality up to 90% of the cases when it ruptures. Currently, the best known treatment to reduce risk is open surgery or endovascular repair. Since the risk of such surgery repair is high, in most patients with AAAs< 55mm in its maximum diameter the surgical treatment is postponed. An effort to enhance the accuracy of the risk assessment and to prevent AAA’s growth and rupture is being made, but the mechanisms promoting AAAs growth are still largely unknown. AAAs can be affected by different factors, among those, hemodynamics is known to play important roles in AAA initiation and progression. Particularly, the wall shear stress is believed to contribute to AAA expansion and rupture. For the present study, we use geometries constructed from longitudinal CT images obtained during AAA follow-up studies and investigate relations between multiple hemodynamics factors with local expansion of AAAs.
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ASME 2012 Summer Bioengineering Conference
June 20–23, 2012
Fajardo, Puerto Rico, USA
Conference Sponsors:
- Bioengineering Division
ISBN:
978-0-7918-4480-9
PROCEEDINGS PAPER
Effect of Wall Shear Stress on Abdominal Aortic Aneurysm Expansion: Study With Longitudinal Patient Images
B. Zambrano,
B. Zambrano
Michigan State University, East Lansing, MI
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A. Dupay,
A. Dupay
Michigan State University, East Lansing, MI
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F. Jaberi,
F. Jaberi
Michigan State University, East Lansing, MI
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W. Lee,
W. Lee
Seoul National University Hospital, Seoul, Korea
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S. Baek
S. Baek
Michigan State University, East Lansing, MI
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B. Zambrano
Michigan State University, East Lansing, MI
A. Dupay
Michigan State University, East Lansing, MI
F. Jaberi
Michigan State University, East Lansing, MI
W. Lee
Seoul National University Hospital, Seoul, Korea
S. Baek
Michigan State University, East Lansing, MI
Paper No:
SBC2012-80350, pp. 899-900; 2 pages
Published Online:
July 19, 2013
Citation
Zambrano, B, Dupay, A, Jaberi, F, Lee, W, & Baek, S. "Effect of Wall Shear Stress on Abdominal Aortic Aneurysm Expansion: Study With Longitudinal Patient Images." Proceedings of the ASME 2012 Summer Bioengineering Conference. ASME 2012 Summer Bioengineering Conference, Parts A and B. Fajardo, Puerto Rico, USA. June 20–23, 2012. pp. 899-900. ASME. https://doi.org/10.1115/SBC2012-80350
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