A Next-Generation Mathematical Model for Drug-Eluting Stents
A Next-Generation Mathematical Model for Drug-Eluting Stents
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下一代药物洗脱支架数学模型
DOI:
10.1137/20m1365144
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发表时间:
2021
影响因子:
1.9
通讯作者:
Bukač, Martina
中科院分区:
文献类型:
--
作者:
Čanić, Sunčica;Wang, Yifan;Bukač, Martina
We propose a Navier--Stokes--Biot fluid-structure interaction (FSI) model to study the interaction between an incompressible, viscous Newtonian fluid and a poroelastic medium with permeability depending on the volumetric change of pore size. The FSI model is coupled to a set of advection-reaction-diffusion equations defined on moving domains so that we may study the interaction between the blood flow, a stented coronary artery, and time-dependent pharmacokinetics of drug absorption in drug-eluting stents. A monolithic approach is used to implement the proposed problem numerically within the context of finite element discretization. Nitsche's method is employed to enforce one of the coupling conditions at the moving fluid-poroelastic structure interface. Stability analysis is presented, providing conditions on Nitsche's penalty parameter under which the scheme is unconditionally stable. Using 3D simulations, five geometrically different metallic stent platforms are considered with two different pharmacokinetics to show how stent geometry and type of coating impact the biomechanical environment, the local hemodynamics, and the concentration of the pharmacological agents within the vascular wall and artery lumen. It is found that stent implantation changes the permeability properties of the arterial wall, as well as local hemodynamics, which may be responsible for the so-called edge effect, i.e., suboptimal reduction in restenosis rates near the edges of drug-eluting stents. To the best of our knowledge, this is the first study of drug-eluting stents that takes into account fluid-poroelastic structure interaction with permeability depending on the volumetric change of the pore size, coupled to an advection-reaction-diffusion model defined on moving domains.
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影响因子:
0.8
作者:
Guo,Liang;Fernandez,Raquel;Sakamoto,Atsushi;Cornelissen,Anne;Paek,KaHyun;Lee,ParkerJ;Weinstein,LeahM;Collado-Rivera,CarlosJ;Harari,Emanuel;Kutys,Robert;Samuda,TorieS;Singer,NicoleA;Kutyna,MatthewD;Kolodgie,FrankD;Virman
通讯作者:
Virman
DOI:
--
发表时间:
2018
期刊:
影响因子:
--
作者:
E. Gudiño;C. Oishi;A. Sequeira
通讯作者:
A. Sequeira
DOI:
--
发表时间:
2007
期刊:
J.Biomech.Eng 129
影响因子:
--
作者:
N.Koshiba;J.Ando;X.Chen;and T.Hisada
通讯作者:
and T.Hisada
影响因子:
3.8
作者:
P. Zunino;J. Tambača;Elena Cutri;S. Čanić;L. Formaggia;F. Migliavacca
通讯作者:
F. Migliavacca
DOI:
10.1016/j.cma.2019.03.034
发表时间:
2019-06-15
影响因子:
7.2
作者:
Bukac, Martina;Canic, Suncica;Wang, Yifan
通讯作者:
Wang, Yifan