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Published on: April 13, 2015
[Noninvasive numerical simulation of coronary fractional flow reserve based on lattice Boltzmann method]
Rongting Liu1, Qingqing Yang1, Aike Qiao2
1College of Life Science and Bioengineering, Beijing University of Technology, Beijing 100124, P.R.China.
Abstract:
In order to investigate the application of lattice Boltzmann method (LBM) in the numerical simulation of computed tomography angiography-derived fractional flow reserve (FFR CT), an idealized narrowed tube model and two coronary stenosis arterymodels are studied. Based on the open source code library (Palabos), the relative algorithm program in the development environment (Codeblocks) was improved. Through comparing and analyzing the results of FFR CT which is simulated by LBM and finite element analysis software ANSYS, and the feasibility of the numerical simulation of FFR CT by LBM was verified . The results show that the relative error between the results of LBM and finite element analysis software ANSYS is about 1%, which vertifies the feasibility of simulating the coronary FFR CT by LBM. The simulation of this study provides technical support for developing future FFR CT application software, and lays the foundation for the calculation of clinical FFR CT.
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