摘要
目的建立颅内动脉瘤三维有限元模型,为动脉瘤内的三维流场模拟和血流动力学研究提供可靠依据。方法选择10例颅内动脉瘤患者的三维数字减影血管造影(3D-DSA)容积成像数据,以DICOM格式输出并转换成三维灰度光栅图像,通过MIMICS 10.0数字化医学影像软件对三维灰度光栅图像编辑处理,运用三维重建技术完成初步重建,将其结果导入ANSYS 11.0有限元软件进行网格划分,建立三维有限元模型。结果 10例患者建立的三维有限元模型均符合颅内动脉瘤的形态,符合率100%,模型可用于颅内动脉瘤血流动力学计算分析。结论随着影像技术的发展,建立准确而有效的颅内动脉瘤三维有限元模型是颅内动脉瘤血流动力学研究前提和基础,对颅内动脉瘤的病理生理学研究以及治疗具有重要意义。
Objective To establish a threedimensional finite element model of the intracranial aneurysm in order to provide reliable basis for the study of threedimensional simulation and hemodynamics.Methods With 3DDSA volume imaging data,the model was reconstructed primarily by means of the function of edit and proposal of MIMICS 10.0 digital medical image software,which used the threedimensional reconstruction technology,then the result was introduced into the ANSYS 11.0 software in order to perform grid remeshing and develop threedimensional finite element model.Results The established models of aneurysms of ten cases were consistent with shape of the intracranial aneurysms,with 100% coincidence,and could be used for calculation and analysis of intracranial aneurysm hemodynamics.Conclusion Establishing accurate and effective threedimensional finite element model of intracranial aneurysm is precondition and base of research on hemodynamics of intracranial aneurysm and has important significance for pathologyphysiology research and treatment of intracranial aneurysm.
出处
《中华老年心脑血管病杂志》
CAS
北大核心
2010年第8期687-689,共3页
Chinese Journal of Geriatric Heart,Brain and Vessel Diseases
基金
北京市自然科学基金(7093133)
关键词
血管造影术
数字减影
颅内动脉瘤
成像
三维
血流动力学
angiography,digital subtraction
intracranial aneurysm
imaging,threedimensional
hemodynamics
