External tissue support and fluid-structure simulation in blood flows

Autor: Nan Xiao, Dominique Chapelle, Charles A. Taylor, Jean-Frédéric Gerbeau, Philippe Moireau, C. A. Figueroa, Matteo Astorino
Přispěvatelé: Modeling, analysis and control in computational structural dynamics (MACS), Inria Paris-Rocquencourt, Institut National de Recherche en Informatique et en Automatique (Inria)-Institut National de Recherche en Informatique et en Automatique (Inria), Department of Bioengineering [Stanford], Stanford University, Numerical simulation of biological flows (REO), Laboratoire Jacques-Louis Lions (LJLL), Université Pierre et Marie Curie - Paris 6 (UPMC)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Université Paris Diderot - Paris 7 (UPD7)-Centre National de la Recherche Scientifique (CNRS)-Inria Paris-Rocquencourt, Department of Surgery [Stanford], Stanford Medicine, Stanford University-Stanford University
Jazyk: angličtina
Rok vydání: 2012
Předmět:
Adult
Male
Work (thermodynamics)
Engineering
0206 medical engineering
Blood flows
02 engineering and technology
Patient-specific geometry
01 natural sciences
Viscoelasticity
Domain (mathematical analysis)
Motion
Region of interest
Fluid–structure interaction
Fluid-structure interaction
Humans
Computer Simulation
Boundary value problem
0101 mathematics
Simulation
Boundary conditions
business.industry
Mechanical Engineering
Models
Cardiovascular
Mechanics
Middle Aged
020601 biomedical engineering
Arterial tree
Biomechanical Phenomena
010101 applied mathematics
Flow (mathematics)
Organ Specificity
Modeling and Simulation
Tissue support
Calibration
Hemorheology
Aorta modeling
business
Tomography
X-Ray Computed
Blood Flow Velocity
[MATH.MATH-NA]Mathematics [math]/Numerical Analysis [math.NA]
Biotechnology
Zdroj: Biomechanics and Modeling in Mechanobiology
Biomechanics and Modeling in Mechanobiology, 2012, 11 (1-2), pp.1-18. ⟨10.1007/s10237-011-0289-z⟩
Biomechanics and Modeling in Mechanobiology, Springer Verlag, 2012, 11 (1-2), pp.1-18. ⟨10.1007/s10237-011-0289-z⟩
ISSN: 1617-7959
1617-7940
DOI: 10.1007/s10237-011-0289-z⟩
Popis: International audience; The objective of this work is to address the formulation of an adequate model of the external tissue environment when studying a portion of the arterial tree with fluid-structure interaction. Whereas much work has already been accomplished concerning flow and pressure boundary conditions associated with truncations in the fluid domain, very few studies take into account the tissues surrounding the region of interest to derive adequate boundary conditions for the solid domain. In this paper, we propose to model the effect of external tissues by introducing viscoelastic support conditions along the artery wall, with two--possibly distributed--parameters that can be adjusted to mimic the response of various physiological tissues. In order to illustrate the versatility and effectiveness of our approach, we apply this strategy to perform patient-specific modeling of thoracic aortae based on clinical data, in two different cases and using a distinct fluid-structure interaction methodology for each, namely an Arbitrary Lagrangian-Eulerian (ALE) approach with prescribed inlet motion in the first case and the coupled momentum method in the second case. In both cases, the resulting simulations are quantitatively assessed by detailed comparisons with dynamic image sequences, and the model results are shown to be in very good adequacy with the data.
Databáze: OpenAIRE
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