• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文会议>IEEE Portuguese Meeting in Bioengineering >Numerical study of blood flow in stented arteries: comparison of stent designs and viscosity models
【24h】

Numerical study of blood flow in stented arteries: comparison of stent designs and viscosity models

机译：支架动脉血流的数值研究：支架设计和粘度模型的比较

获取原文
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Atherosclerosis is a disease that is indirectly responsible for millions of deaths annually, and this condition is often treated with the implantation of stents, a medical device that is used to restore blood flow. This treatment inevitably brings changes in the local blood flow, since there is the introduction of a foreign element into the environment. It should be sought to ensure that the changes are minimal in order for the treatment to be effective and for the patients' quality of life to be improved. The computational fluid dynamics (CFD) techniques are often used to study blood flow in arteries given that there is a great difficulty in doing studies in vivo. In this work, CFD was used to study blood flow in stented arteries, more specifically in the common carotid artery (CCA). Two distinct stent geometries (Stent A and B) were used to study the influence of the design aspects on local hemodynamics. The study also served to study the influence of the viscosity on the results, through the consideration of the Newtonian and Carreau viscosity models. The main conclusions of the work are the need for blood flow on stented arteries to modeled according to its non-Newtonian behavior and that stent A represents a more effective treatment for Atherosclerosis.
机译：动脉粥样硬化是一种每年间接导致数百万人死亡的疾病，这种情况通常可以通过植入支架来治疗，支架是一种用于恢复血液流动的医疗设备。由于将异物引入到环境中，因此这种治疗不可避免地带来了局部血流的变化。为了使治疗有效并改善患者的生活质量，应设法确保变化最小。鉴于体内研究非常困难，因此通常使用计算流体力学（CFD）技术来研究动脉中的血流。在这项工作中，CFD用于研究带支架的动脉，特别是颈总动脉（CCA）的血流。两种不同的支架几何形状（支架A和B）用于研究设计方面对局部血液动力学的影响。该研究还通过考虑牛顿和Carreau粘度模型来研究粘度对结果的影响。这项工作的主要结论是，需要根据其非牛顿行为对支架动脉的血流进行建模，并且支架A代表了一种更有效的动脉粥样硬化治疗方法。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号