中国组织工程研究

中国组织工程研究 ›› 2011, Vol. 15 ›› Issue (43): 8059-8062.doi: 10.3969/j.issn.1673-8225.2011.43.020

• 骨与关节实验造模 experimental modeling of the bone and joint • 上一篇    下一篇

下肢动脉狭窄三维模型建立及流体力学计算

马燕山1，2，谢英花3，任国山1，赵长义1，李  伟1， 曹  雷1   

  1. 1河北医科大学基础医学院解剖教研室，河北省石家庄市  050017
    2河北医科大学附属石家庄市中医院放射科，河北省石家庄市050051
    3河北科技大学化学与制药工程学院，河北省石家庄市050018
  • 收稿日期:2011-05-18 修回日期:2011-07-15 出版日期:2011-10-22 发布日期:2011-10-22
  • 作者简介:马燕山★，男，1980年生，河北省大名县人，汉族，2005年河北医科大学毕业，硕士，主要从事CT血管成像及磁共振影像诊断研究。 Mys4567@126.com

Establishment of a three-dimensional finite element model of the lower limb artery and computational fluid dynamics simulation

Ma Yan-shan1, 2, Xie Ying-hua3, Ren Guo-shan1, Zhao Chang-yi1, Li Wei1, Cao Lei1   

  1. 1Department Anatomy, Institute of Basic Medicine, Hebei Medical University, Shijiazhuang  050017, Hebei Province, China
    2Department of Radiology, Shijiazhuang Hospital of Traditional Chinese Medicine,  Hebei Medical University, Shijiazhuang  050051, Hebei Province, China
    3College of Chemical and Pharmaceutical Engineering, Hebei University of Science and Technology, Shijiazhuang  050018, Hebei Province, China
  • Received:2011-05-18 Revised:2011-07-15 Online:2011-10-22 Published:2011-10-22
  • About author:Ma Yan-shan★, Master, Department Anatomy, Institute of Basic Medicine, Hebei Medical University, Shijiazhuang 050017, Hebei Province, China; Department of Radiology, Shijiazhuang Hospital of Traditional Chinese Medicine, Hebei Medical University, Shijiazhuang 050051, Hebei Province, China Mys4567@126.com

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401

被引次数

3

摘要：

背景：随着计算机技术的发展，血管虚拟现实已成为可能。
目的：基于CT断层图像建立下肢动脉局部狭窄的三维立体模型并进行有限元数字网格划分，用于下肢动脉局部狭窄血管的血液动力学分析。
方法：采集患者下肢动脉CTA中一段局部狭窄血管的DICOM数据，在MIMICS14.0中建立三维模型，再导入到有限元软件ANSYS11.0中进行有限元模型的建立，并模拟真实血流条件下的流体力学分析。
结果与结论：在MIMICS14.0软件中得到了局部狭窄血管的三维模型。在ANSYS workbench中得到了血管的有限元模型，模型节点总数7 335，单元总数为43 415。有限元计算得到了一系列的可视化的计算流体数据。表明该方法可以得到下肢动脉局部狭窄段流体力学分析所需的三维立体模型和有限元模型，得到流体力学分析所需相关数据。

关键词: 血液动力学, 数值模拟, 虚拟现实, 三维有限元, 下肢动脉硬化闭塞症

Abstract:

BACKGROUND: With the development of computer technology, blood vessels virtual reality becomes possible.
OBJECTIVE: To construct a digital finite element model of the lower limb artery based on the CT sectional images for fluid dynamics simulation.
METHODS: DICOM images were harvested from patients with narrow artery CTA to build a three-dimensional model in MIMICS14.0. Then, the finite element model was obtained in ANSYS11.0, for analysis of the real conditions of fluid flow.
RESULTS AND CONCLUSION: A three-dimensional model of local stenosis vessel in MIMICS14.0 software. Then, the finite element model of blood vessels was obtained in ANSYS workbench, with 7 335 model nodes and 43 415 units. Finite element analysis was applied to obtain a series of visualized computational fluid data. We could the visual graphic of the flow velocity variations, pressure variations, blood flow path and Wall shear, and establish the required three-dimensional finite element model.

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