Application of mathematical modelling for the evaluation of the results of systemiс-pulmonary shunts formation

Sinelnikov, Yu. S.; Arutunyan, Vagram; Porodikov, Artem A.; Biyanov, А. Т.; Туктамышев, В. С.; Shmurak, M. I.; Khairulin, A. R.; Kuchumov, Alex G.

doi:10.21688/1681-3472-2020-3-45-61

Cited by 2 publications

(1 citation statement)

References 56 publications

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“…FSI (fluid-structure interaction) simulation of the aortic valve is a computational technique that combines computational fluid dynamics (CFD) and structural mechanics to analyze the behavior of the aortic valve under fluid flow conditions [155,195,196]. FSI and CFD applications are widely used in biomedical engineering [121,[197][198][199][200].…”

Section: Discussionmentioning

confidence: 99%

Fluid–Structure Interaction Aortic Valve Surgery Simulation: A Review

Kuchumov,

Makashova,

Vladimirov

et al. 2023

Fluids

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The complicated interaction between a fluid flow and a deformable structure is referred to as fluid–structure interaction (FSI). FSI plays a crucial role in the functioning of the aortic valve. Blood exerts stresses on the leaflets as it passes through the opening or shutting valve, causing them to distort and vibrate. The pressure, velocity, and turbulence of the fluid flow have an impact on these deformations and vibrations. Designing artificial valves, diagnosing and predicting valve failure, and improving surgical and interventional treatments all require the understanding and modeling of FSI in aortic valve dynamics. The most popular techniques for simulating and analyzing FSI in aortic valves are computational fluid dynamics (CFD) and finite element analysis (FEA). By studying the relationship between fluid flow and valve deformations, researchers and doctors can gain knowledge about the functioning of valves and possible pathological diseases. Overall, FSI is a complicated phenomenon that has a great impact on how well the aortic valve works. Aortic valve diseases and disorders can be better identified, treated, and managed by comprehending and mimicking this relationship. This article provides a literature review that compiles valve reconstruction methods from 1952 to the present, as well as FSI modeling techniques that can help advance valve reconstruction. The Scopus, PubMed, and ScienceDirect databases were used in the literature search and were structured into several categories. By utilizing FSI modeling, surgeons, researchers, and engineers can predict the behavior of the aortic valve before, during, and after surgery. This predictive capability can contribute to improved surgical planning, as it provides valuable insights into hemodynamic parameters such as blood flow patterns, pressure distributions, and stress analysis. Additionally, FSI modeling can aid in the evaluation of different treatment options and surgical techniques, allowing for the assessment of potential complications and the optimization of surgical outcomes. It can also provide valuable information on the long-term durability and functionality of prosthetic valves. In summary, fluid–structure interaction modeling is an effective tool for predicting the outcomes of aortic valve surgery. It can provide valuable insights into hemodynamic parameters and aid in surgical planning, treatment evaluation, and the optimization of surgical outcomes.

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Section: Discussionmentioning

confidence: 99%

Fluid–Structure Interaction Aortic Valve Surgery Simulation: A Review

Kuchumov,

Makashova,

Vladimirov

et al. 2023

Fluids

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Influence of Aortic Valve Leaflet Material Model on Hemodynamic Features in Healthy and Pathological States

et al. 2023

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Long-term fiber tissue remodeling and the progressive thickening of the aortic valve leaflets called calcific aortic stenosis lead to cardiac blood outflow obstruction. This disease is the most prevalent heart valve pathology in developed countries. Surgeons can perform aortic valve replacement through traditional open-heart surgery involving a cut (incision) in the chest or use minimally invasive methods such as transcatheter aortic valve implantation (TAVI). These types of surgery have numerous advantages and limitations. Recently, the Ozaki operation for aortic valve replacement using tissue from the autologous pericardium has been proposed. Despite being a promising technique for aortic valve pathology treatment, there is a lack of long-term results and optimal selection of leaflet sizing. Numerical fluid simulations can help surgeons predict operation outcomes for each patient. Nevertheless, the description of the material model for leaflet mechanics leaves an open question. Furthermore, selecting the most suitable model to describe the different conditions of the aortic valve is difficult. We performed a numerical analysis of aortic valve leaflet material models to describe the hemodynamics in normal, pathological, and Ozaki cases. We also reveal wall shear stress, von Mises stress, and displacement distributions. Based on the parameters mentioned above, we found that the Ozaki case model behaved similarly to the mathematical model describing the normal case. Numerical simulations also provide information on the mechanisms of aortic valve work in different states of the heart cycle.

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Application of mathematical modelling for the evaluation of the results of systemiс-pulmonary shunts formation

Cited by 2 publications

References 56 publications

Fluid–Structure Interaction Aortic Valve Surgery Simulation: A Review

Fluid–Structure Interaction Aortic Valve Surgery Simulation: A Review

Influence of Aortic Valve Leaflet Material Model on Hemodynamic Features in Healthy and Pathological States

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