摘要
血管疾病已成为当前发达国家威胁公众健康的头号因素.随着计算机建模的快速发展和有限元模拟技术的提高,国内外学者已经对此展开大量研究,普遍认为血管壁切应力和血流动力学对血管疾病的形成和恶化有重要作用.颅脑动脉因其存在伪影、噪声和血管树复杂、分割效果差等特殊素,比一般的血管分割和可视化更加具有挑战性.针对这些问题,设计出比较高效的可视化平台和建模方法,完成两组MRI断层脑动脉血管的重建,实现3D重建以及对局部流体动力学环境进行研究,探讨脑内动脉血流动力学特点.验证所建的人体脑血管有限元计算机模型,为有限元分析的广泛临床应用提供了高效的仿真方法学基础.
Vascular disease has become the most dangerous threat to public health in developed countries.With the rapid development of computer modeling technique and finite element simulation technology,scholars have launched a large number of studies on vascular disease.It is believed that the vessel wall shear stress and homodynamic play important roles on the formation and deterioration of vascular disease.In this paper,an efficient visualization platform and modeling methods is proposed.The two MRI brain arteries topographic can be reconstructed and the characteristics of brain hemodynamics can be investigated under local fluid dynamics environment.The finite element computer model of cerebrovascular proposed here is verified.It provides an efficient simulation methodology foundation for finite element analysis in a wide range of clinical applications.
出处
《浙江工业大学学报》
CAS
2014年第3期253-256,共4页
Journal of Zhejiang University of Technology
基金
浙江省自然科学基金资助项目(LY12F02035
Y1110781)
关键词
三维重建
数值模拟
颅内动脉瘤
3D reconstruction
numerical simulation
intracranial aneurysm
