健康成人上气道及周围结构的三维有限元模型的构建

Construction of the three-dimensional finite element model of the upper airway and vicinity structure in healthy adults

目的利用薄层CT扫描技术建立健康成人上气道及周围结构的三维有限元模型,为研究OSAHS(阻塞性睡眠呼吸暂停低通气综合征)奠定基础。方法对健康成人上气道进行薄层CT扫描及图像处理,通过Mimics13.0软件和ANSYS软件建立三维有限元模型。结果建立了健康成人上气道及周围结构的三维有限元模型,共得到63032个单元,12149个节点。结论薄层CT扫描技术与Mimics和ANSYS软件相结合,建立健康成人上气道及周围结构的三维有限元模型,精度高、速度快,使用灵活,为后期OSAHS的研究奠定了基础。

Objective To construct a three-dimensional finite element model of the upper airway and vicinity structure in healthy adults.Methods The section images in healthy adult＇s upper airway acquired by thin-section CT scanning and digital image processing were utilized to construct a three-dimensional finite element model by Mimics and ANSYS software.Results A satisfactory three-dimensional finite element model of a healthy adult＇s upper airway and vicinity structure was constructed which including 63032 elements and 12149 nodes.Conclusion It is feasible,accurate and flexible to establish the three-dimensional finite element model in healthy adult＇s upper airway and vicinity structure by means of thin-section CT scanning technology and Mimics and ANSYS software.It is a basis for more analysis of OSAHS.