Key result
Numerical heart valve simulation models guide surgical repair and prosthesis design through fluid-structure interactions.
Why the study?
Imaging techniques do not provide information on the load applied to heart valves, which is key to understanding valve deterioration, and numerical simulation can replicate valve dynamics to aid surgical repair and prostheses design but lacks systematic categorization and development overview.
This review categorizes numerical simulation models of heart valves to aid in understanding valve dynamics for surgical repair and prosthesis design.
Simulation may clarify valve load beyond imaging; leaves open validated models for repair and prostheses.
Imaging techniques allow the visualization of the heart valves, but do not yields any information regarding the load applied to the heart valve information that provides key clues to the cause of valve deterioration. Numerical simulation, which is able to replicate and understand the dynamics of the valve, would benefit studies on heart valves surgical repair and prostheses design. Modeling and simulation of heart valves dynamics is a challenging biomechanical problem. Many researchers have taken various approaches to model the heart valve. But systematical categorization and development tendency of their research have never been discussed before. This paper reviews their models and divides them into wet models or dry models, in the light of whether considering blood flow and valve interaction. These simulations also can be categorized as native heart valve or artificial heart valve simulation by a different model prototype. The critical issues for future research are presented.
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Zhong et al. (2013) conducted a review in Heart valve dynamics. Numerical simulation of heart valves was evaluated. Numerical simulation models of heart valves can be categorized into wet or dry models based on blood flow interaction, providing insights for surgical repair and prosthesis design.
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