### Abstract

Three-dimensional coordinates of osseous biological landmarks located on computed tomographic (CT) images provide a valid geometric model of a class of anatomical information present in a CT image. Sets of landmarks located on CT images have been used to determine the changes in form that occur during growth of the head. Finite-element scaling analysis (FESA) provides a quantitative and graphic mapping of a younger individual into its older configuration that can be expressed as the magnitude and direction of change that occurs due to growth at each biologic locus. The authors compare the use of various finite-element types (wedges, hexahedra, tetrahedra) in the modeling of the human cranial base for the analytical description of growth. FESA quantifies differences between forms at each landmark in terms of the magnitude and direction of change (in 2-D or 3-D) required to produce the target from the initial morphology. To compare forms using FESA, objects are discretized into contiguous finite elements using landmarks as vertices. Differences between forms are measured in terms of strain at landmarks.

Original language | English (US) |
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Title of host publication | Biomedical Engineering Perspectives |

Subtitle of host publication | Health Care Technologies for the 1990's and Beyond |

Publisher | Publ by IEEE |

Pages | 387-388 |

Number of pages | 2 |

Edition | pt 1 |

ISBN (Print) | 0879425598 |

State | Published - Dec 1 1990 |

Event | Proceedings of the 12th Annual International Conference of the IEEE Engineering in Medicine and Biology Society - Philadelphia, PA, USA Duration: Nov 1 1990 → Nov 4 1990 |

### Other

Other | Proceedings of the 12th Annual International Conference of the IEEE Engineering in Medicine and Biology Society |
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City | Philadelphia, PA, USA |

Period | 11/1/90 → 11/4/90 |

### Fingerprint

### All Science Journal Classification (ASJC) codes

- Signal Processing
- Biomedical Engineering
- Computer Vision and Pattern Recognition
- Health Informatics

### Cite this

*Biomedical Engineering Perspectives: Health Care Technologies for the 1990's and Beyond*(pt 1 ed., pp. 387-388). Publ by IEEE.

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*Biomedical Engineering Perspectives: Health Care Technologies for the 1990's and Beyond.*pt 1 edn, Publ by IEEE, pp. 387-388, Proceedings of the 12th Annual International Conference of the IEEE Engineering in Medicine and Biology Society, Philadelphia, PA, USA, 11/1/90.

**The biological implications of varying element design in finite-element scaling analyses of growth.** / Richtsmeier, Joan Therese; Morris, G. R.; Marsh, J. L.; Vannier, M. W.

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

TY - GEN

T1 - The biological implications of varying element design in finite-element scaling analyses of growth

AU - Richtsmeier, Joan Therese

AU - Morris, G. R.

AU - Marsh, J. L.

AU - Vannier, M. W.

PY - 1990/12/1

Y1 - 1990/12/1

N2 - Three-dimensional coordinates of osseous biological landmarks located on computed tomographic (CT) images provide a valid geometric model of a class of anatomical information present in a CT image. Sets of landmarks located on CT images have been used to determine the changes in form that occur during growth of the head. Finite-element scaling analysis (FESA) provides a quantitative and graphic mapping of a younger individual into its older configuration that can be expressed as the magnitude and direction of change that occurs due to growth at each biologic locus. The authors compare the use of various finite-element types (wedges, hexahedra, tetrahedra) in the modeling of the human cranial base for the analytical description of growth. FESA quantifies differences between forms at each landmark in terms of the magnitude and direction of change (in 2-D or 3-D) required to produce the target from the initial morphology. To compare forms using FESA, objects are discretized into contiguous finite elements using landmarks as vertices. Differences between forms are measured in terms of strain at landmarks.

AB - Three-dimensional coordinates of osseous biological landmarks located on computed tomographic (CT) images provide a valid geometric model of a class of anatomical information present in a CT image. Sets of landmarks located on CT images have been used to determine the changes in form that occur during growth of the head. Finite-element scaling analysis (FESA) provides a quantitative and graphic mapping of a younger individual into its older configuration that can be expressed as the magnitude and direction of change that occurs due to growth at each biologic locus. The authors compare the use of various finite-element types (wedges, hexahedra, tetrahedra) in the modeling of the human cranial base for the analytical description of growth. FESA quantifies differences between forms at each landmark in terms of the magnitude and direction of change (in 2-D or 3-D) required to produce the target from the initial morphology. To compare forms using FESA, objects are discretized into contiguous finite elements using landmarks as vertices. Differences between forms are measured in terms of strain at landmarks.

UR - http://www.scopus.com/inward/record.url?scp=0025556353&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0025556353&partnerID=8YFLogxK

M3 - Conference contribution

SN - 0879425598

SP - 387

EP - 388

BT - Biomedical Engineering Perspectives

PB - Publ by IEEE

ER -