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Evaluation of the plate-rod model assumption of trabecular bone
Linköping University, Center for Medical Image Science and Visualization (CMIV). Linköping University, Department of Medical and Health Sciences. Linköping University, The Institute of Technology.ORCID iD: 0000-0001-5765-2964
Linköping University, Center for Medical Image Science and Visualization (CMIV). Linköping University, Department of Biomedical Engineering, Medical Informatics. Linköping University, The Institute of Technology.ORCID iD: 0000-0002-9267-2191
Linköping University, Center for Medical Image Science and Visualization (CMIV). Linköping University, Department of Medical and Health Sciences, Radiology. Linköping University, Faculty of Health Sciences. Östergötlands Läns Landsting, Center for Diagnostics, Department of Radiology in Linköping.ORCID iD: 0000-0002-7750-1917
2012 (English)In: 9th IEEE International Symposium on Biomedical Imaging (ISBI), 2012, IEEE Press, 2012, 470-473 p.Conference paper, Published paper (Refereed)
Abstract [en]

Trabecular bone has traditionally been assumed to be composed of plate- and rod-like trabeculae. This paper proposes a method to numerically evaluate the appropriateness of this assumption. In a first step, local constancy of thickness is estimated by comparing the maximum and mean diameter of the maximum inscribed balls centered at the medial axis/surface that includes every local point. In a second step, deviations from null curvature at the medial axis/surface are locally measured by comparing the geodesic and Euclidean distances from a point to its neighbors in the medial axis/surface. Finally, these two measurements are combined in order to locally estimate the compliance of the dataset with the plate-rod model assumption. Experiments on synthetic datasets show that the proposed measurements can be used to decide the compliance of a 3D shape with the plate-rod model. Results on micro computed tomography images show that the plate-rod model is more valid for a vertebra than for a radius. Thus, especially for the radius, measurements based on this model should be complemented with the proposed measurements.

Place, publisher, year, edition, pages
IEEE Press, 2012. 470-473 p.
Series
IEEE International Symposium on Biomedical Imaging, ISSN 1945-7928
Keyword [en]
Biological system modeling, Biomedical measurements, Trabecular bone, Computational modeling, Computed tomography, Shape, Shape measurement
National Category
Medical Image Processing
Identifiers
URN: urn:nbn:se:liu:diva-79480DOI: 10.1109/ISBI.2012.6235586ISI: 000312384100118ISBN: 978-1-4577-1857-1 (print)OAI: oai:DiVA.org:liu-79480DiVA: diva2:542786
Conference
9th IEEE International Symposium on Biomedical Imaging (ISBI 2012), 2-5 May 2012, Barcelona, Spain
Available from: 2012-08-28 Created: 2012-08-03 Last updated: 2015-08-19Bibliographically approved

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Moreno, RodrigoBorga, MagnusSmedby, Örjan

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Center for Medical Image Science and Visualization (CMIV)Department of Medical and Health SciencesThe Institute of TechnologyMedical InformaticsRadiologyFaculty of Health SciencesDepartment of Radiology in Linköping
Medical Image Processing

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