Bucki Marek, Nazari Mohammad Ali, Payan Yohan
TIMC-IMAG Laboratory, UMR CNRS 5525, University Joseph Fourier, La Tronche, France.
Comput Methods Biomech Biomed Engin. 2010 Aug;13(4):459-67. doi: 10.1080/10255840903505139.
In situations where automatic mesh generation is unsuitable, the finite element (FE) mesh registration technique known as mesh-match-and-repair (MMRep) is an interesting option for quickly creating a subject-specific FE model by fitting a predefined template mesh onto the target organ. The irregular or poor quality elements produced by the elastic deformation are corrected by a 'mesh reparation' procedure ensuring that the desired regularity and quality standards are met. Here, we further extend the MMRep capabilities and demonstrate the possibility of taking into account additional relevant anatomical features. We illustrate this approach with an example of biomechanical model generation of a speaker's face comprising face muscle insertions. While taking advantage of the a priori knowledge about tissues conveyed by the template model, this novel, fast and automatic mesh registration technique makes it possible to achieve greater modelling realism by accurately representing the organ surface as well as inner anatomical or functional structures of interest.
在自动网格生成不适用的情况下，有限元（FE）网格配准技术，即网格匹配与修复（MMRep），是一种通过将预定义的模板网格拟合到目标器官上来快速创建特定个体FE模型的有趣选择。通过“网格修复”程序校正弹性变形产生的不规则或质量差的单元，确保满足所需的规则性和质量标准。在此，我们进一步扩展了MMRep的功能，并展示了考虑其他相关解剖特征的可能性。我们以一个包含面部肌肉附着点的说话者面部生物力学模型生成示例来说明这种方法。在利用模板模型所传达的关于组织的先验知识的同时，这种新颖、快速且自动的网格配准技术能够通过精确表示器官表面以及感兴趣的内部解剖或功能结构，实现更高的建模逼真度。
