3D analysis from micro-MRI during in situ compression on cancellous bone - Archive ouverte HAL Accéder directement au contenu
Article Dans Une Revue Journal of Biomechanics Année : 2009

3D analysis from micro-MRI during in situ compression on cancellous bone

Résumé

A mini-compression jig was built to perform in situ tests on bovine trabecular bone monitored by micro-MRI. The MRI antenna provided an isotropic resolution of 78 μm that allows for a volume correlation method to be used. Three-dimensional displacement fields are then evaluated within the bone sample during the compression test. The performances of the correlation method are evaluated and discussed to validate the technique on trabecular bone. By considering correlation residuals and estimates of acquisition noise, the measured results are shown to be trustworthy. By analyzing average strain levels for different interrogation volumes along the loading direction, it is shown that the sample size is less than that of a representative volume element. This study shows the feasibility of the 3D-displacement and strain field analyses from micro-MRI images. Other biological tissues could be considered in future work.
Fichier principal
Vignette du fichier
BM1-ccsd.pdf (1.65 Mo) Télécharger le fichier
Origine : Fichiers produits par l'(les) auteur(s)
Loading...

Dates et versions

hal-00410326 , version 1 (19-08-2009)

Identifiants

Citer

Aurélie Benoit, Sandra Guérard, Brigitte Gillet, Geneviève Guillot, François Hild, et al.. 3D analysis from micro-MRI during in situ compression on cancellous bone. Journal of Biomechanics, 2009, 42, pp.2381-2386. ⟨10.1016/j.jbiomech.2009.06.034⟩. ⟨hal-00410326⟩
225 Consultations
268 Téléchargements

Altmetric

Partager

Gmail Facebook X LinkedIn More