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Automated hexahedral meshing of anatomic structures using deformable registration

Author

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  • Nicole M. Grosland
  • Ritesh Bafna
  • Vincent A. Magnotta

Abstract

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.

Suggested Citation

  • Nicole M. Grosland & Ritesh Bafna & Vincent A. Magnotta, 2009. "Automated hexahedral meshing of anatomic structures using deformable registration," Computer Methods in Biomechanics and Biomedical Engineering, Taylor & Francis Journals, vol. 12(1), pages 35-43.
    • Handle: RePEc:taf:gcmbxx:v:12:y:2009:i:1:p:35-43
    DOI: 10.1080/10255840802136143
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    Cited by:

    1. B. Rodriguez-Vila & P. Sánchez-González & I. Oropesa & E. J. Gomez & D. M. Pierce, 2017. "Automated hexahedral meshing of knee cartilage structures – application to data from the osteoarthritis initiative," Computer Methods in Biomechanics and Biomedical Engineering, Taylor & Francis Journals, vol. 20(14), pages 1543-1553, October.
    2. Nicole A. Kallemeyn & Amla Natarajan & Vincent A. Magnotta & Nicole M. Grosland, 2013. "Hexahedral meshing of subject-specific anatomic structures using mapped building blocks," Computer Methods in Biomechanics and Biomedical Engineering, Taylor & Francis Journals, vol. 16(6), pages 602-611, June.

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