CT扫描及计算机辅助设计技术建立的颈椎三维有限元模型(英文)  

Establishment of a three-dimensional finite element model of cervical spine using computed tomography scan and compute aided design

作　　者：付裕[1] 阮狄克[2] 刘斌[1] 李志军[3] 张沛[1] 李晨光[4] 

机构地区：[1]内蒙古医学院第二附属医院颈椎外科,内蒙古自治区呼和浩特市010030 [2]解放军海军总医院骨科,北京市100037 [3]内蒙古医学院基础医学院,内蒙古自治区呼和浩特市010059 [4]北京航空航天大学宇航学院,北京市100085

出　　处：《中国组织工程研究与临床康复》2009年第48期9563-9566,共4页Journal of Clinical Rehabilitative Tissue Engineering Research

基　　金：Youth Foundation Scientific Research Program ofInner Mongolia Medical College,No.NY2006QN003~~

摘　　要：通过CT扫描、Unigraphics V18.0软件进行影像边界记录、定标等方法,按照点、线、面、体的顺序重建三维结构,采用计算机辅助设计数据处理技术,输入相关的材料特性,通过计算机分析颈椎C3～4的应力分布。验证重建模型的有效性。建立了颈椎C3～4三维有限元模型,分析结果证明其在仿真分析中是可行的。结果提示,建立的颈椎三维有限元模型可以模拟生物力学实验,可为计算机分析该模型的局部结构在各种受力情况下的生物力学表现创造力条件。A finite element model of cervical spine was three-dimensionally reconstructed through computed tomography （CT） scan, recording the edges of image using Snigraphics V18.0 software, and calibrating in sequence of point, line, area, and solid. The stress distribution of cervical C34 was analyzed using compute aided design to validate the availability of reconstructed models. Results showed that the three-dimensional finite element cervical C3-4 was feasible in simulation analysis. These indicate that the established three-dimensional finite element models can simulate biomechanical experiments, providing foundations for analyzing biomechanical performance of local structure of this finite element model under various pressure conditions.

关 键 词：有限元模型 颈椎 生物力学 

分 类 号：R318[医药卫生—生物医学工程]