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Evaluation of the p...
Evaluation of the plate-rod model assumption of trabecular bone
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- Moreno, Rodrigo, 1973- (författare)
- Linköpings universitet,Centrum för medicinsk bildvetenskap och visualisering, CMIV,Institutionen för medicin och hälsa,Tekniska högskolan
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- Borga, Magnus (författare)
- Linköpings universitet,Centrum för medicinsk bildvetenskap och visualisering, CMIV,Medicinsk informatik,Tekniska högskolan
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- Smedby, Örjan (författare)
- Östergötlands Läns Landsting,Linköpings universitet,Centrum för medicinsk bildvetenskap och visualisering, CMIV,Medicinsk radiologi,Hälsouniversitetet,Röntgenkliniken i Linköping
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(creator_code:org_t)
- IEEE Press, 2012
- 2012
- Engelska.
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Ingår i: 9th IEEE International Symposium on Biomedical Imaging (ISBI), 2012. - : IEEE Press. - 9781457718571 ; , s. 470-473
- Relaterad länk:
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https://liu.diva-por... (primary) (Raw object)
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
Ämnesord
Stäng
- 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.
Ämnesord
- TEKNIK OCH TEKNOLOGIER -- Medicinteknik -- Medicinsk bildbehandling (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Medical Engineering -- Medical Image Processing (hsv//eng)
Nyckelord
- Biological system modeling
- Biomedical measurements
- Trabecular bone
- Computational modeling
- Computed tomography
- Shape
- Shape measurement
Publikations- och innehållstyp
- ref (ämneskategori)
- kon (ämneskategori)
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