一种具有真实人脑外形的脑有限元模型的建立方法  

A Method of Building the Finite-element Model with the Contour Line of Human Brain

作　　者：帅万钧[1] 董秀珍[1] 付峰[1] 尤富生[1] 刘锐岗[1] 史学涛[1] 

机构地区：[1]第四军医大学生物医学工程系,西安710032

出　　处：《生物医学工程学杂志》2005年第4期663-667,共5页Journal of Biomedical Engineering

基　　金：国家自然科学基金资助项目(50337020)

摘　　要：利用曲线拟合方法模拟大脑外形轮廓曲线,然后采用波前法完成曲线内部区域的离散化,并对波前法提出了改进措施。曲线拟合结果和人脑CT照片基本吻合,改进的波前法能快速完成内部区域的离散,初步建立了具有真实大脑外形的脑有限元模型。为下一步脑电阻抗断层成像的算法研究打下基础。The contour line of human brain was simulated by the curve-fitting methods and then the inner area was discretized by advancing-front methods which was improved at last. The curve-fitting result was similar to the CT picture of the human brain and the discrete result of inner area could be completed quickly by improved advanced-front methods. A finite element model with the contour line of human brain was built primarily which will contribute to the next algorithm study of electrical impedance tomography in human brain.

关 键 词：有限元 曲线拟合 波前法 有限元模型 人脑 建立方法 外形 电阻抗断层成像 拟合方法 CT照片 

分 类 号：R318.0[医药卫生—生物医学工程]