Contrast enhanced tomographic reconstruction of vascular blood flow based on the Navier-Stokes equation.

被引：0
作者：
Sixou, B. [1 ]
Sigovan, M. [1 ]
Boussel, L. [1 ]
机构：
[1] Univ Lyon 1, Univ Lyon, INSA Lyon, CREATIS,CNRS,UMR5220,Inserm,U630, F-69621 Villeurbanne, France
来源：
INVERSE PROBLEMS IN SCIENCE AND ENGINEERING | 2020年 / 28卷 / 09期
关键词：
Inverse problems; adjoint methods; Navier-Stokes equation; DYNAMIC INVERSE PROBLEMS; EFFICIENT ALGORITHMS; REGULARIZATION; NANOPARTICLES; GRADIENT; ARTERIES; MODEL;
D O I：
10.1080/17415977.2020.1724108
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
In this work, we study the reconstruction of blood velocity with contrast enhanced computed tomography with tomographic projections perpendicular to the main flow field direction. The inverse problem is regularized with a convection-diffusion partial differential equation and with the Navier-Stokes equation. The velocity field is reconstructed together with the density field with a first-order adjoint method. The method is validated on a simple phantom. The addition of a physical constraint with a partial differential equation for the velocity field improves the reconstruction results.
引用
收藏
页码：1287 / 1306
页数：20
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