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3-D reconstruction of a surface model of the proximal femur from digital biplanar radiographs.
Journal article

3-D reconstruction of a surface model of the proximal femur from digital biplanar radiographs.

  • Zheng G MEM Research Center, University of Bern, CH-3014, Bern, Switzerland. guoyan.zheng@ieee.org
  • Schumann S
  • 2009-01-24
Published in:
  • Annual International Conference of the IEEE Engineering in Medicine and Biology Society. IEEE Engineering in Medicine and Biology Society. Annual International Conference. - 2008
Algorithms
Computer Simulation
Femur Head
Humans
Imaging, Three-Dimensional
In Vitro Techniques
Models, Anatomic
Pattern Recognition, Automated
Radiographic Image Enhancement
Reproducibility of Results
Sensitivity and Specificity
English Twenty-two femurs (one plastic bone and twenty-one cadaveric bones) with both nonpathologic and pathologic cases were considered to validate a point distribution model based three-dimensional (3-D) reconstruction technique using digital biplanar radiographs. The 3-D reconstruction technique is based on an iterative non-rigid registration of the features extracted from a statistically instantiated 3-D surface model to those identified from the radiographs. The surface models reconstructed from the radiographs were compared to the associated ground truths derived either from a 3-D CT-scan reconstruction method or from a 3-D laser-scan reconstruction method. Our experimental results demonstrated that our biplanar reconstruction technique could accurately reconstruct the surface models of both nonpathologic and pathologic femurs (average error distance=0.9 mm), even when the point distribution model that we used were constructed from surface models of nonpathologic femurs.
Language
  • English
Open access status
closed
Identifiers
Persistent URL
https://folia.unifr.ch/global/documents/71328
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