A nested cortex parcellation combining analysis of MEG forward problem and diffusion MRI tractography - Inria - Institut national de recherche en sciences et technologies du numérique Access content directly
Conference Papers Year : 2012

A nested cortex parcellation combining analysis of MEG forward problem and diffusion MRI tractography

Abstract

Understanding the relationship between structure and function is a major challenge in neuroscience. Diffusion MRI (dMRI) in the only non-invasive modality allowing to have access to the neural structure. Magnetoencephalography (MEG) is another non-invasive modality that allows a direct access to the temporal succession of cognitive processes. Functional cortex parcellation being one of the most impor- tant ways to understanding structure-function relationship, we propose an innovative method merging MEG and dMRI to parcellate the cortex. The combination of MEG forward problem and connectivity information reveals cortical areas generating a similar magnetic field at sensors while having a similar connectivity. Results show suitable clusters that forecast interesting studies for inter- and intra- subjects com- parisons of the cortex parcellations. The automatic nested cortex parcellation we propose could be a first step to analyse sources that are seeds of long or short range connectivity and to differentiate these connectivities in the white matter.

Domains

Neuroscience
Fichier principal
Vignette du fichier
PHILIPPE_Ac_ISBI12.pdf (230.27 Ko) Télécharger le fichier
Origin : Publisher files allowed on an open archive
Loading...

Dates and versions

hal-00662776 , version 1 (25-01-2012)

Identifiers

  • HAL Id : hal-00662776 , version 1

Cite

Anne-Charlotte Philippe, Maureen Clerc, Théodore Papadopoulo, Rachid Deriche. A nested cortex parcellation combining analysis of MEG forward problem and diffusion MRI tractography. ISBI - IEEE International Symposium on Biomedical Imaging - 2012, May 2012, Barcelona, Spain. ⟨hal-00662776⟩
238 View
224 Download

Share

Gmail Facebook X LinkedIn More