3d Personalized Reconstruction of Proximal Femur from Bi-planar Dxa Images
نویسندگان
چکیده
Anthony Le Bras, Sami Kolta, Valérie Bousson, David Mitton, Jacques de Guise, Jean-Denis Laredo, Christian Roux, Wafa Skalli 1 Laboratoire de Biomécanique, ENSAM-CNRS UMR 8005, Paris, France, [email protected] 2 Centre d’Evaluation des Maladies Osseuses, Hôpital Cochin AP-HP, Paris, France 3 Laboratoire de Radiologie Expérimentale, Université Paris VII, Hôpital Lariboisière AP-HP, Paris, France 4 Laboratoire de Recherche en Imagerie et Orthopédie (ETS-CRCHUM), Montréal, Canada
منابع مشابه
3D bone mineral density distribution and shape reconstruction of the proximal femur from a single simulated DXA image: an in vitro study
Area Bone Mineral Density (aBMD) measured by Dual energy X-ray Absorptiometry (DXA) is an established criterion in the evaluation of hip fracture risk. The evaluation from these planar images however is limited to 2D while it has been shown that proper 3D assessment of both the shape and the BMD distribution improves the fracture risk estimation. In this work we present a method to reconstruct ...
متن کاملTechnical note: comparison between single and multiview simulated DXA configurations for reconstructing the 3D shape and bone mineral density distribution of the proximal femur.
PURPOSE Dual-energy x-ray absorptiometry (DXA) is used in clinical routine to provide a two-dimensional (2D) analysis of the bone mineral density (BMD). 3D reconstruction methods from 2D DXA images could improve the BMD analysis. To find the optimal configuration that should be used in clinical routine, this paper relies on a 3D reconstruction method from DXA images to compare the accuracy that...
متن کامل3D Structural Measurements of the Proximal Femur from 2D DXA Images Using a Statistical Atlas
A method to obtain 3D structural measurements of the proximal femur from 2D DXA images and a statistical atlas is presented. A statistical atlas of a proximal femur was created consisting of both 3D shape and volumetric density information and then deformably registered to 2D fan-beam DXA images. After the registration process, a series of 3D structural measurements were taken on QCT-estimates ...
متن کاملA software framework for 3D reconstruction and fracture risk assessment of the proximal femur from dual-energy x-ray absorptiometry
In clinical routine, osteoporosis diagnosis is performed using the areal Bone Mineral Density (aBMD) computed from two-dimensional Dual-energy X-ray Absorptiometry (DXA) images. This measurement of the "projected density" gives a global marker of osteoporosis but is insufficient for an accurate quantification of non-uniform mineral deficiencies. Quantitative Computed Tomography (QCT) is one pos...
متن کاملGeneration of 3D shape, density, cortical thickness and finite element mesh of proximal femur from a DXA image
Areal bone mineral density (aBMD), as measured by dual-energy X-ray absorptiometry (DXA), predicts hip fracture risk only moderately. Simulation of bone mechanics based on DXA imaging of the proximal femur, may help to improve the prediction accuracy. Therefore, we collected three (1-3) image sets, including CT images and DXA images of 34 proximal cadaver femurs (set 1, including 30 males, 4 fe...
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