Automated hexahedral meshing of anatomic structures using deformable registration.
Automated hexahedral meshing of anatomic structures using deformable registration.
复制标题
使用变形配准对解剖结构进行自动六面体网格划分。
DOI：
10.1080/10255840903065134
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发表时间：
2009
影响因子：
1.6
通讯作者：
Magnotta,VincentA
中科院分区：
文献类型：
--
作者：
Grosland,NicoleM;Bafna,Ritesh;Magnotta,VincentA
这项工作介绍了一种新的方法，自动化的过程中，患者特定的有限元（FE）模型开发使用映射网格技术。目标是将高质量的预定义网格（模板）直接映射到新的骨表面（目标）定义上，从而产生具有最小用户交互的类似网格。为了使模板网格与目标表面相对应，采用了基于有限元方法的变形配准技术。该程序已分层，允许使用几个级别的网格细化，从而减少了实现解决方案所需的时间。我们最初的努力集中在人类手部的指骨上。网格质量指标，如单元体积和变形进行了评价。此外，测量目标表面和最终映射网格之间的距离。计算结果表明，该方法具有较好的实用性.
This work introduces a novel method of automating the process of patient-specific finite element (FE) model development using a mapped mesh technique. The objective is to map a predefined mesh (template) of high quality directly onto a new bony surface (target) definition, thereby yielding a similar mesh with minimal user interaction. To bring the template mesh into correspondence with the target surface, a deformable registration technique based on the FE method has been adopted. The procedure has been made hierarchical allowing several levels of mesh refinement to be used, thus reducing the time required to achieve a solution. Our initial efforts have focused on the phalanx bones of the human hand. Mesh quality metrics, such as element volume and distortion were evaluated. Furthermore, the distance between the target surface and the final mapped mesh were measured. The results have satisfactorily proven the applicability of the proposed method.