Proceedings Vol. 17 (2011)
ENGINEERING MECHANICS 2011
May 9 – 12, 2011, Svratka, Czech Republic
Copyright © 2011 Institute of Thermomechanics, Academy of Sciences of the Czech Republic, v.v.i., Prague
ISSN 1805-8248 (printed)
ISSN 1805-8256 (electronic)
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pages 627 - 630, full text
Two parameters of bone microarchitecture: volume of bone layer and fractal dimension were used. 42 human bone samples were cut to cylindrical testing samples of 8.5 mm thickness and 10 mm diameter. We obtained 230 images (microCT) which, using binarisation technique, were transformed into pixels and voxels. We created geometrical mesh of layers of bone mass. This allowed the calculation of each layers volume and fractal dimension. Fractal dimension for each single layer has been calculated applying set of voxels using Sarkar’s and Chaudhuri’s box-counting algorithm. When comparing scatter for layers’ volume and scatter for layers’ fractal dimension we can see that scatter is clearly higher for volume. This might mean that relative scatter for fractal dimension is narrower, thus in diagnostic procedure fewer measurement data of fractal dimension than of volume are sufficient to conclude about bone structure.
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All papers were reviewed by members of the scientific committee.