https://sam.ensam.eu:443 The DSpace digital repository system captures, stores, indexes, preserves, and distributes digital research material. Fri, 05 Jun 2026 23:03:43 GMT 2026-06-05T23:03:43Z http://hdl.handle.net/10985/7387 3D analysis from micro-MRI during in situ compression on cancellous bone. BENOIT, Aurélie; GILLET, Brigitte; GUILLOT, Geneviève; HILD, François; MITTON, David; PERIE, Jean Noël; ROUX, Stéphane; GUÉRARD, Sandra 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 microm 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. The authors would like to acknowledge Claude Verliac and Joachim Magnier for technical advice on the manufacturing process of the mechanical loading system. Thu, 01 Jan 2009 00:00:00 GMT http://hdl.handle.net/10985/7387 2009-01-01T00:00:00Z BENOIT, Aurélie GILLET, Brigitte GUILLOT, Geneviève HILD, François MITTON, David PERIE, Jean Noël ROUX, Stéphane GUÉRARD, Sandra 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 microm 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.