Anatomical modelling of the musculoskeletal system from MRI.

Gilles B; Moccozet L; Magnenat-Thalmann N

doi:10.1007/11866565_36

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Journal article

Anatomical modelling of the musculoskeletal system from MRI.

Gilles B MIRALab, University of Geneva, CH-1211 Geneva, Switzerland. gilles@miralab.unige.ch
Moccozet L
Magnenat-Thalmann N

2007-03-16

Published in:

Medical image computing and computer-assisted intervention : MICCAI ... International Conference on Medical Image Computing and Computer-Assisted Intervention. - 2006

Image Interpretation, Computer-Assisted

Pattern Recognition, Automated

English This paper presents a novel approach for multi-organ (musculoskeletal system) automatic registration and segmentation from clinical MRI datasets, based on discrete deformable models (simplex meshes). We reduce the computational complexity using multi-resolution forces, multi-resolution hierarchical collision handling and large simulation time steps (implicit integration scheme), allowing real-time user control and cost-efficient segmentation. Radial forces and topological constraints (attachments) are applied to regularize the segmentation process. Based on a medial axis constrained approximation, we efficiently characterize shapes and deformations. We validate our methods for the hip joint and the thigh (20 muscles, 4 bones) on 4 datasets: average error = 1.5 mm, computation time = 15 min.

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