Huang Ping, Li Zheng-dong, Shao Yu, Zou Dong-hua, Liu Ning-guo, Li Li, Chen Yuan-yuan, Wan Lei, Chen Yi-jiu
Shanghai Key Laboratory of Forensic Medicine, Institute of Forensic Science, Ministry of Justice, PR China, Shanghai 200063, China.
Fa Yi Xue Za Zhi. 2011 Feb;27(1):1-4, 8.
To establish a human 3D finite element skull model, and to explore its value in biomechanics analysis.
The cadaveric head was scanned and then 3D skull model was created using Mimics software based on 2D CT axial images. The 3D skull model was optimized by preprocessor along with creation of the surface and volume meshes. The stress changes, after the head was struck by an object or the head hit the ground directly, were analyzed using ANSYS software.
The original 3D skull model showed a large number of triangles with a poor quality and high similarity with the real head, while the optimized model showed high quality surface and volume meshes with a small number of triangles comparatively. The model could show the local and global stress changes effectively.
The human 3D skull model can be established using MSCT and Mimics software and provides a good finite element model for biomechanics analysis. This model may also provide a base for the study of head stress changes following different forces.
建立人体三维有限元颅骨模型，并探讨其在生物力学分析中的价值。
对尸体头部进行扫描，然后基于二维CT轴向图像使用Mimics软件创建三维颅骨模型。通过预处理程序对三维颅骨模型进行优化，并创建表面和体积网格。使用ANSYS软件分析头部被物体撞击或头部直接撞击地面后的应力变化。
原始三维颅骨模型显示大量三角形，质量较差，但与真实头部相似度高；而优化后的模型显示高质量的表面和体积网格，三角形数量相对较少。该模型能够有效显示局部和整体应力变化。
利用多层螺旋CT（MSCT）和Mimics软件可建立人体三维颅骨模型，为生物力学分析提供良好的有限元模型。该模型也可为研究不同力作用下头部应力变化提供基础。
