A systematic comparison between 1-D and 3-D hemodynamics in compliant arterial models

TY - JOUR

T1 - A systematic comparison between 1-D and 3-D hemodynamics in compliant arterial models

AU - Xiao, Nan

AU - Alastruey, Jordi

AU - Figueroa, C. Alberto

PY - 2014/2

Y1 - 2014/2

N2 - We present a systematic comparison of computational hemodynamics in arteries between a one-dimensional (1-D) and a three-dimensional (3-D) formulation with deformable vessel walls. The simulations were performed using a series of idealized compliant arterial models representing the common carotid artery, thoracic aorta, aortic bifurcation, and full aorta from the arch to the iliac bifurcation. The formulations share identical inflow and outflow boundary conditions and have compatible material laws. We also present an iterative algorithm to select the parameters for the outflow boundary conditions by using the 1-D theory to achieve a desired systolic and diastolic pressure at a particular vessel. This 1-D/3-D framework can be used to efficiently determine material and boundary condition parameters for 3-D subject-specific arterial models with deformable vessel walls. Finally, we explore the impact of different anatomical features and hemodynamic conditions on the numerical predictions. The results show good agreement between the two formulations, especially during the diastolic phase of the cycle.

AB - We present a systematic comparison of computational hemodynamics in arteries between a one-dimensional (1-D) and a three-dimensional (3-D) formulation with deformable vessel walls. The simulations were performed using a series of idealized compliant arterial models representing the common carotid artery, thoracic aorta, aortic bifurcation, and full aorta from the arch to the iliac bifurcation. The formulations share identical inflow and outflow boundary conditions and have compatible material laws. We also present an iterative algorithm to select the parameters for the outflow boundary conditions by using the 1-D theory to achieve a desired systolic and diastolic pressure at a particular vessel. This 1-D/3-D framework can be used to efficiently determine material and boundary condition parameters for 3-D subject-specific arterial models with deformable vessel walls. Finally, we explore the impact of different anatomical features and hemodynamic conditions on the numerical predictions. The results show good agreement between the two formulations, especially during the diastolic phase of the cycle.

KW - arterial hemodynamics

KW - fluid-structure interaction

KW - pulse wave propagation

KW - Windkessel

KW - full aorta model

KW - spatially varying mechanical properties

KW - outflow boundary condition estimation

U2 - 10.1002/cnm.2598

DO - 10.1002/cnm.2598

M3 - Article

SN - 2040-7939

VL - 30

SP - 204

EP - 231

JO - International Journal For Numerical Methods In Biomedical Engineering

JF - International Journal For Numerical Methods In Biomedical Engineering

IS - 2

ER -