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Proceedings Article

Performance of linear and nonlinear texture measures in 2D and 3D for monitoring architectural changes in osteoporosis using computer-generated models of trabecular bone

[+] Author Affiliations
Holger F. Boehm, Dirk Mueller

Technische Univ. Muenchen (Germany) and Max-Planck-Institut fuer extraterrestrische Physik (Germany)

Thomas M. Link

Univ. of California/San Francisco (USA)

Roberto A. Monetti

Max-Planck-Institut fuer extraterrestrische Physik (Germany)

Ernst J. Rummeny, Christoph W. Raeth

Technische Univ. Muenchen (Germany)

Proc. SPIE 5747, Medical Imaging 2005: Image Processing, 249 (May 05, 2005); doi:10.1117/12.592649
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From Conference Volume 5747

  • Medical Imaging 2005: Image Processing
  • J. Michael Fitzpatrick; Joseph M. Reinhardt
  • San Diego, CA | February 12, 2005

abstract

Osteoporosis is a metabolic bone disease leading to de-mineralization and increased risk of fracture. The two major factors that determine the biomechanical competence of bone are the degree of mineralization and the micro-architectural integrity. Today, modern imaging modalities (high resolution MRI, micro-CT) are capable of depicting structural details of trabecular bone tissue. From the image data, structural properties obtained by quantitative measures are analysed with respect to the presence of osteoporotic fractures of the spine (in-vivo) or correlated with biomechanical strength as derived from destructive testing (in-vitro). Fairly well established are linear structural measures in 2D that are originally adopted from standard histo-morphometry. Recently, non-linear techniques in 2D and 3D based on the scaling index method (SIM), the standard Hough transform (SHT), and the Minkowski Functionals (MF) have been introduced, which show excellent performance in predicting bone strength and fracture risk. However, little is known about the performance of the various parameters with respect to monitoring structural changes due to progression of osteoporosis or as a result of medical treatment. In this contribution, we generate models of trabecular bone with pre-defined structural properties which are exposed to simulated osteoclastic activity. We apply linear and non-linear texture measures to the models and analyse their performance with respect to detecting architectural changes. This study demonstrates, that the texture measures are capable of monitoring structural changes of complex model data. The diagnostic potential varies for the different parameters and is found to depend on the topological composition of the model and initial "bone density". In our models, non-linear texture measures tend to react more sensitively to small structural changes than linear measures. Best performance is observed for the 3rd and 4th Minkowski Functionals and for the scaling index method.

© (2005) COPYRIGHT SPIE--The International Society for Optical Engineering. Downloading of the abstract is permitted for personal use only.
Citation

Holger F. Boehm ; Thomas M. Link ; Roberto A. Monetti ; Dirk Mueller ; Ernst J. Rummeny, et al.
"Performance of linear and nonlinear texture measures in 2D and 3D for monitoring architectural changes in osteoporosis using computer-generated models of trabecular bone", Proc. SPIE 5747, Medical Imaging 2005: Image Processing, 249 (May 05, 2005); doi:10.1117/12.592649; http://dx.doi.org/10.1117/12.592649


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