| People | Locations | Statistics |
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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Kononenko, Denys |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Bih, L. |
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| Casati, R. |
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| Muller, Hermance |
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| Kočí, Jan | Prague |
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| Šuljagić, Marija |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Blanpain, Bart |
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| Ali, M. A. |
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| Popa, V. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Isaksson, Hanna
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (17/17 displayed)
- 2024Impact of storage time prior to cryopreservation on mechanical properties of aortic homograftscitations
- 2022Crack propagation in articular cartilage under cyclic loading using cohesive finite element modelingcitations
- 2022Fracture behavior of a composite of bone and calcium sulfate/hydroxyapatitecitations
- 2022Fracture behavior of a composite of bone and calcium sulfate/hydroxyapatitecitations
- 2021Dual modality neutron and x-ray tomography for enhanced image analysis of the bone-metal interfacecitations
- 2021Dual modality neutron and x-ray tomography for enhanced image analysis of the bone-metal interfacecitations
- 2020Spatio-temporal evolution of hydroxyapatite crystal thickness at the bone-implant interfacecitations
- 2020Bone Damage Evolution Around Integrated Metal Screws Using X-Ray Tomographycitations
- 2020Comparison of small‐angle neutron and X‐ray scattering for studying cortical bone nanostructurecitations
- 2020The influence of microstructure on crack propagation in cortical bone at the mesoscalecitations
- 2019An interface damage model that captures crack propagation at the microscale in cortical bone using XFEMcitations
- 2019Crack propagation in cortical bone is affected by the characteristics of the cement line : a parameter study using an XFEM interface damage modelcitations
- 2019Fracture strength of the proximal femur injected with a calcium sulfate/hydroxyapatite bone substitutecitations
- 2017Neutron tomographic imaging of bone-implant interfacecitations
- 2016Differences in acoustic impedance of fresh and embedded human trabecular bone samples - scanning acoustic microscopy and numerical evaluationcitations
- 2016Bone mineral crystal size and organization vary across mature rat bone cortexcitations
- 2016How accurately can subject-specific finite element models predict strains and strength of human femora? Investigation using full-field measurementscitations
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article
Differences in acoustic impedance of fresh and embedded human trabecular bone samples - scanning acoustic microscopy and numerical evaluation
Abstract
Trabecular bone samples are traditionally embedded and polished for scanning acoustic microscopy (SAM). The effect of sample processing, including dehydration, on the acoustic impedance of bone is unknown. In this study, acoustic impedance of human trabecular bone samples (n = 8) was experimentally assessed before (fresh) and after embedding using SAM and two-dimensional (2-D) finite-difference time domain simulations. Fresh samples were polished with sandpapers of different grit (P1000, P2500, and P4000). Experimental results indicated that acoustic impedance of samples increased significantly after embedding [mean values 3.7 MRayl (fresh), 6.1 MRayl (embedded), p < 0.001]. After polishing with different papers, no significant changes in acoustic impedance were found, even though higher mean values were detected after polishing with finer (P2500 and P4000) papers. A linear correlation (r = 0.854, p < 0.05) was found between the acoustic impedance values of embedded and fresh bone samples polished using P2500 SiC paper. In numerical simulations dehydration increased the acoustic impedance of trabecular bone (38%), whereas changes in surface roughness of bone had a minor effect on the acoustic impedance (-1.56%/0.1 μm). Thereby, the numerical simulations corroborated the experimental findings. In conclusion, acoustic impedance measurement of fresh trabecular bone is possible and may provide realistic material values similar to those of living bone.