Skeletal muscle segmentation from MRI dataset using a model-based approach
Article dans une revue avec comité de lecture
Magnetic resonance imaging (MRI) and computed tomography scans are used to assess muscle volume, but the manual segmentation, slice by slice, is long and tedious. We proposed an improvement in the deformation of a parametric-specific object method using image processing. The 3D subject-specific geometry was reconstructed based on a few selected number of MRI slices by fast rough contouring using polygons. These polygons were matched to the muscle shape by an optimisation method using an original cost function. Then, parametric-specific object was constructed and deformed. The shape was improved using a loop and the cost function in all MRI slices. The 11 main muscles of the thigh were considered, and the time required to get the shape of all muscles was 21 min, with a volume error inferior to 5% and a point-surface distance error (2RMS) inferior to 5 mm. This method provides a good compromise between segmentation time and an accurate representation of the muscles shape.
Showing items related by title, author, creator and subject.
Article dans une revue avec comité de lectureHAUSSELLE, Jerome; ASSI, Ayman; EL HELOU, Amine; JOLIVET, Erwan; PILLET, Hélène; DION, Elisabeth; BONNEAU, Dominique; SKALLI, Wafa (Informa UK Limited, 2012)Accurate estimation of joint loads implies using subject-specific musculoskeletal models. Moreover, as the lines of action of the muscles are dictated by the soft tissues, which are in turn influenced by gravitational ...
Article dans une revue avec comité de lectureVERGARI, Claudio; ROUCH, Philippe; DUBOIS, Guillaume; BONNEAU, Dominique; DUBOUSSET, Jean; TANTER, Mickael; GENNISSON, Jean-Luc; SKALLI, Wafa (2014)Patient-specific numerical simulation of the spine is a useful tool both in clinic and research. While geometrical personalization of the spine is no more an issue, thanks to recent technological advances, non-invasive ...
Lumbar annulus fibrosus biomechanical characterization in children by ultrasound shear wave elastography Article dans une revue avec comité de lectureVERGARI, Claudio; DUBOIS, Guillaume; GENNISSON, Jean-Luc; TANTER, Mickael; DUBOUSSET, Jean; ROUCH, Philippe; SKALLI, Wafa; VIALLE, Raphaël (Elsevier, 2016)Objectives Intervertebral disc (IVD) is key to spine biomechanics, and it is often involved in the cascade leading to spinal deformities such as idiopathic scoliosis, especially during the growth spurt. Recent progress in ...
Article dans une revue avec comité de lectureDUBOIS, Guillaume; BONNEAU, Dominique; LAFAGE, Virginie; ROUCH, Philippe; SKALLI, Wafa (Springer Verlag, 2015)In vivo follow-up of muscle shape variation represents a challenge when evaluating muscle development due to disease or treatment. Recent developments in muscles reconstruction techniques indicate MRI as a clinical tool ...
Article dans une revue avec comité de lectureDUBOIS, Guillaume; ROUCH, Philippe; BONNEAU, Dominique; GENNISSON, Jean-Luc; SKALLI, Wafa (Taylor & Francis, 2016)The evaluation of muscle and joint forces in vivo is still a challenge. Musculo-Skeletal (musculoskeletal) models are used to compute forces based on movement analysis. Most of them are built from a scaled-generic model ...