全部 标题 作者
关键词 摘要

OALib Journal期刊
ISSN: 2333-9721
费用:99美元

查看量下载量

相关文章

更多...
-  2018 

基于格子玻尔兹曼方法的冠状动脉血流储备分数无创计算研究

DOI: doi:10.7507/1001-5515.201710034

Keywords: 血流储备分数, 格子玻尔兹曼方法, 数值模拟, 计算流体力学

Full-Text   Cite this paper   Add to My Lib

Abstract:

为探讨格子玻尔兹曼方法(LBM)在基于电子计算机断层扫描(CT)的冠状动脉血流储备分数(FFRCT)无创计算中的应用,以一个局部狭窄圆管模型和两个冠状动脉分支模型为研究对象。基于开源代码库(Palabos),在集成开发环境(Codeblocks)中改进相应算法程序。基于 LBM 对以上模型的 FFRCT 进行数值模拟,并将数值模拟的结果与有限元分析软件 ANSYS 数值模拟的结果进行对比分析,以验证 LBM 数值模拟冠状动脉 FFRCT 的可行性。结果表明,LBM 数值模拟冠状动脉 FFRCT 与有限元分析软件 ANSYS 模拟的结果相对误差在 1% 左右,验证了 LBM 数值模拟冠状动脉 FFRCT 可行性。本研究的模拟计算为后续开发冠状动脉 FFRCT 应用软件提供了技术支持,为临床冠状动脉 FFRCT 的计算奠定了基础

References

[1]  4. 刘亚斌, 韩雅玲, 荆全民, 等. 4 种无创性检查及其组合对冠心病诊断的辅助作用研究. 中国实用内科杂志, 2011, 31(12): 930-933.
[2]  13. Kuwata Y, Suga K. Imbalance-correction grid-refinement method for lattice Boltzmann flow simulations. J Comput Phys, 2016, 311(15): 348-362.
[3]  16. 张明子, 刘有军, 谢进生, 等. 基于格子 Boltzmann 方法的体肺分流术血流动力学几何多维度数值研究. 医用生物力学, 2013, 28(06): 642-647.
[4]  24. Qian Y H. D’Humieres D, Lallemand P. Lattice BGK models for Navier-Stokes equation. Europhysics Letters, 1992, 17(6): 479.
[5]  25. 张坤. 格子 Boltzmann 方法多松弛模型局部网格加密算法研究. 济南: 山东大学, 2017.
[6]  20. Qiao A, Yang Q, Yang H, Yue M. An approach to noninvasive fractional flow reserve calculation with a patient-specific pressure-flow boundary condition//5th International Conference on Computational and Mathematical Biomedical Engineering (CMBE), USA: Pittsburgh, 2017.
[7]  1. Rizvi A, Hartaigh B ó, Knaapen P, et al. Rationale and design of the CREDENCE trial: computed TomogRaphic evaluation of atherosclerotic DEtermiNants of myocardial IsChEmia. BMC Cardiovasc Disord, 2016, 16(1): 190.
[8]  2. Pijls N H, van Son J A, Kirkeeide R L, et al. Experimental basis of determining maximum coronary, myocardial, and collateral blood flow by pressure measurements for assessing functional stenosis severity before and after percutaneous transluminal coronary angioplasty. Circulation, 1993, 87(4): 1354-1367.
[9]  6. Pijls N H. Fractional flow reserve to guide coronary revascularization. Circ J, 2013, 77(3): 561-569.
[10]  14. Yoshino M, Murayama T. A lattice Boltzmann method for a two-phase flow containing solid bodies with viscoelastic membranes. Eur Phys J Spec Top, 2009, 171(1): 151-157.
[11]  19. Sun Anqiang, Fan Yubo, Deng Xiaoyan. Numerical study of hemodynamics at coronary bifurcation with and without swirling flow//6th World Congress of Biomechanics(WBC), Singapore, 2010: 1428-1430.
[12]  22. 陈曦, 蒋文涛, 樊瑜波, 等. 药物洗脱支架连接筋对流场和浓度场影响的血流动力学数值研究. 航天医学与医学工程, 2010, 23(06): 440-444.
[13]  3. Pijls N H, de Bruyne B, Peels K, et al. Measurement of fractional flow reserve to assess the functional severity of coronary-artery stenoses. N Engl J Med, 1996, 334(26): 1703-1708.
[14]  5. Pijls N H, Tanaka N, Fearon W F. Functional assessment of coronary stenoses: can we live without it? Eur Heart J, 2013, 34(18): 1335-1344.
[15]  7. Pijls N H, van Gelder B, van der Voort P, et al. Fractional flow reserve. a useful index to evaluate the influence of an epicardial coronary stenosis on myocardial blood flow. Circulation, 1995, 92(11): 3183.
[16]  8. Bruyne B D, Baudhuin T, Melin J A, et al. Coronary flow reserve calculated from pressure measurements in humans. Validation with positron emission tomography. Circulation, 1994, 89(3): 1013-1022.
[17]  9. Kleiman N S. Bringing it all together integration of physiology with anatomy during cardiac catheterization. J Am Coll Cardiol, 2011, 58(12): 1219-1221.
[18]  10. 侯映映. 冠状动脉狭窄的血流储备分数有限元分析研究. 北京: 北京工业大学, 2015.
[19]  11. Kruggel-Emden H, Kravets B, Suryanarayana M K, et al. Direct numerical simulation of coupled fluid flow and heat transfer for single particles and particle packings by a LBM-approach. Powder Technology, 2016, 294(16): 236-251.
[20]  12. Yan Y Y, Zu Y Q, Dong B O. LBM, a useful tool for mesoscale modelling of single-phase and multiphase flow. Applied Thermal Engineering, 2011, 31(5, SI): 649-655.
[21]  15. Mokhtar N H, Abas A, Razak N A, et al. Effect of different stent configurations using Lattice Boltzmann method and particles image velocimetry on artery bifurcation aneurysm problem. J Theor Biol, 2017, 433: 73-84.
[22]  17. 乔爱科, 侯映映, 侯阳. 冠状动脉狭窄几何构型对血流储备分数影响的有限元分析. 中国生物医学工程学报, 2015, 34(02): 198-203.
[23]  18. 初博, 乔爱科. 搭桥术治疗 DeBakey Ⅲ型主动脉夹层的流固耦合数值模拟. 医用生物力学, 2012, 27(04): 386-391.
[24]  21. Qiao A, Yang Q, Yang H, et al. A research of patient-specific flow boundary condition in noninvasive coronary fractional flow reserve//8th International Conference on Computational Methods (ICCM), Guilin, 2017: 25-29.
[25]  23. Ouared R, Chopard B. Lattice boltzmann simulations of blood flow: non-Newtonian rheology and clotting processes. J Stat Phys, 2005, 121(1/2): 209-221.

Full-Text

Contact Us

service@oalib.com

QQ:3279437679

WhatsApp +8615387084133