[BIC-announce] Special Seminar in Biomedical Engineering - MONDAY November 26th - 4 pm - Room 333

[Christophe Grova]

Dear all,

In addition to our standard seminar on Wednesday we will have an additional special seminar in Biomedical Engineering Dpt TODAY

Monday  - November 26th,  at 4 pm

Location: Room  333 Lyman Duff Building (Biomedical Engineering Dpt, 3775  University Street).

Speaker: Dr Pierre LeVan, PhD, post-doc fellow under the supervision of Dr Jürgen Hennig.
Head of the "Advanced Brain Imaging"  Laboratory, Radiology/Medical Physics departments, Freiburg, Germany

Title : Latest developments in EEG/fMRI acquisition strategies

Abstract:
  Functional magnetic resonance imaging (fMRI) has emerged as a powerful non-invasive tool for the investigation of cerebral functional activity. This modality can also be combined with EEG recordings, allowing the accurate localization of hemodynamic correlates of neuronal electrical activity. However, technical limitations are currently preventing the method from being used to its full potential. On the one hand, any motion, however small, induces strong artifacts in both the fMRI and EEG time series, irreversibly compromising signal quality. On the other hand, the time-consuming application of magnetic field gradients for MRI spatial encoding limits the achievable temporal resolution, precluding the adequate sampling of physiological and artifactual fMRI signal fluctuations.

Recent technological developments are now being investigated to address those issues. Moiré phase tracking (MPT) markers can be used to measure subject motion with exceptional accuracy, allowing the prospective motion correction of fMRI data and the retrospective motion correction of EEG data. Additionally, MR-Encephalography (MREG) uses efficient undersampled 3D gradient trajectories and parallel imaging techniques to attain unprecedented fMRI temporal resolutions. These combined techniques yield improved sensitivities and signal quality, while opening up new avenues for the investigation of dynamic brain activity.

A list of upcoming seminars can be found at : http://www.mcgill.ca/bme/news/seminars

See you there


Christophe Grova


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Christophe Grova, PhD
Assistant Professor
Biomedical Engineering Dpt
Neurology and Neurosurgery Dpt

Montreal Neurological Institute
Centre de Recherches en Mathématiques

Biomedical Engineering Department - Room 304
McGill University
3775 University Street, Montreal, Quebec, Canada, H3A 2B4
email : christophe.grova at mcgill.ca
tel : (514) 398 2516
fax : (514) 398 7461

web:
http://www.mni.mcgill.ca/research/gotman/members/christophe.html
http://www.bmed.mcgill.ca/
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