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A Comparative Study for the Effect of Tissure Anisotropy on the Behavior of a Single Cardiac Pressure Cycle for a Symmetric Tri-Leaflet Valve

Thomas, Vineet Sunny
http://rave.ohiolink.edu/etdc/view?acc_num=akron1284703306

Abstract Details

2010, Master of Science in Engineering, University of Akron, Civil Engineering.
Several attempts have been made in the past to understand the mechanics and function of the aortic valve and its surrounding geometric structures through finite element analysis, a powerful mathematical tool. As expressed by Thubrikar, there is a need to understand the geometry of the valve in a dynamic state. Sophisticated analysis of the complex interplay between the aortic root and the leaflets, as well as the development of stresses and strains in the leaflet during opening and closing is now possible using powerful computer techniques, which aid in a better understanding of the dynamics of the aortic valve. More importantly, these might prove invaluable in predicting patterns of failure of replacement devices or repair techniques in the work bench setting rather than experiencing it in the clinical situation, with unfortunate consequences. Earlier work on the aortic valve has been well documented along with substantial details of the geometry. Such dimensions have been used in recent studies also. The procedure illustrated by Thubrikar has been used to create the current model. The thickness of the leaflet is assumed to be constant in this model and the orientation was assigned based on the previous work done by Saleeb et al and his team. To check the capability of the material model developed by Saleeb et al and his team, Dokos et al work on the shear properties of passive ventricular myocardium results were compared. Comparative study was performed on the aortic valve model to observe the effect of tissue anisotropy for one complete cardiac cycle.
Dr. Atef Saleeb (Advisor)
Dr. Wieslaw Binienda (Committee Member)
Dr. Craig Menzemer (Committee Member)
Engineering
Aortic valve; Three dimensional tri-leaflet valve; Anisotropy

Recommended Citations

Citations

  • Thomas, V. S. (2010). A Comparative Study for the Effect of Tissure Anisotropy on the Behavior of a Single Cardiac Pressure Cycle for a Symmetric Tri-Leaflet Valve [Master's thesis, University of Akron]. OhioLINK Electronic Theses and Dissertations Center. http://rave.ohiolink.edu/etdc/view?acc_num=akron1284703306

    APA Style (7th edition)

  • Thomas, Vineet. A Comparative Study for the Effect of Tissure Anisotropy on the Behavior of a Single Cardiac Pressure Cycle for a Symmetric Tri-Leaflet Valve. 2010. University of Akron, Master's thesis. OhioLINK Electronic Theses and Dissertations Center, http://rave.ohiolink.edu/etdc/view?acc_num=akron1284703306.

    MLA Style (8th edition)

  • Thomas, Vineet. "A Comparative Study for the Effect of Tissure Anisotropy on the Behavior of a Single Cardiac Pressure Cycle for a Symmetric Tri-Leaflet Valve." Master's thesis, University of Akron, 2010. http://rave.ohiolink.edu/etdc/view?acc_num=akron1284703306

    Chicago Manual of Style (17th edition)

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This open access ETD is published by University of Akron and OhioLINK.