Cortical patches and MEEG inverse problem

Cortical patches and MEEG inverse problem:

  • Methods to generate cortical patches based on both the dMRI data and the MEEG leadfield have been tested [1, 1].
  • Various methods to integrate the cortical patch information in the MEEG inverse problem (single time instant) have been tested [2].
  • Integration of the cortical patch information into the Entropic method developped at CRM is done. The integration currently only considers spatial information. Temporal aspects have been discussed and are our next goal on this front.  Current work aims at comparing the various methods developped at CRM and at Athena on a public database. The aim is to have a paper ready for sumition for BIOMAG 2014.
  • The regularized methods developed at Athena has been used to analyse propagation of epileptic spikes [3]. It allows to visualize spike propagation from single event data which was not possible with standard reconstruction methods.
[1] A. Philippe, M. Clerc, T. Papadopoulo, and R. Deriche, “A nested cortex parcellation combining analysis of MEG forward problem and diffusion MRI
tractography,” in IEEE International Symposium on Biomedical Imaging (ISBI), Barcelona, 2012, pp. 518–521.
[Bibtex]
@InProceedings{    philippe-clerc-etal:12b,
  author          = {Philippe, Anne-Charlotte and Clerc, Maureen and Papadopoulo, Théo[dore] and Deriche, Rachid},
  title            = {A nested cortex parcellation combining analysis of MEG forward problem and diffusion MRI
        tractography},
  pages            = {518–521},
  booktitle          = {IEEE International Symposium on Biomedical Imaging (ISBI)},
  year            = {2012},
  address          = {Barcelona},
  month            = may,
  organization          = {IEEE},
  topic            = {misc},
  owner            = {papadop},
  group            = {Athena},
  x-proceedings          = {yes},
  x-international-audience    = {yes},
  x-pays          = {}
}
[2] A. Philippe, M. Clerc, T. Papadopoulo, and R. Deriche, “Cortex Parcellation Via Diffusion Data As Prior Knowledge for the Meg Inverse Problem,” in International Symposium on Biomedical Imaging: From Nano to Macro, San Francisco, CA, États-Unis, 2013.
[Bibtex]
@InProceedings{    philippe-clerc-etal:13,
  author          = {Philippe, Anne-Charlotte and Clerc, Maureen and Papadopoulo, Théodore and Deriche, Rachid},
  title            = {Cortex Parcellation Via Diffusion Data As Prior Knowledge for the Meg Inverse Problem},
  booktitle          = {International Symposium on Biomedical Imaging: From Nano to Macro},
  year            = {2013},
  address          = {San Francisco, CA, États-Unis},
  month            = apr,
  url            = {http://hal.inria.fr/hal-00808056},
  topic            = {misc},
  owner            = {papadop},
  group            = {Athena},
  x-proceedings          = {yes},
  x-international-audience    = {yes},
  x-pays          = {}
}
[3] A. -C. Philippe, T. Papadopoulo, M. Clerc, and R. Deriche, “Propagation of epileptic spikes revealed by diffusion-based constrained MEG source reconstruction,” , 2013.
[Bibtex]
@Conference{    philippe-papadopoulo-etal:13,
  author          = {Philippe, A.-C. and Papadopoulo, T. and Clerc, M. and Deriche, R.},
  title            = {Propagation of epileptic spikes revealed by diffusion-based constrained MEG source reconstruction},
  booktitle          = {Scale-free Dynamics and Networks in Neuroscience},
  year            = {2013},
  topic            = {misc},
  owner            = {papadop},
  group            = {Athena},
  x-proceedings          = {no},
  x-international-audience    = {yes},
  x-pays          = {}
}