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Abstract #4321

Non-Linear Bayesian Suppression of Magnetohydrodynamic Effect for Accurate Electrocardiogram Analysis During MRI.

Julien Oster1, Matthieu Geist2, Zion Tse3, Ehud J. Schmidt3, Olivier Pietquin2, Gari D. Clifford1

1Department of Engineering Science, University of Oxford, Oxford, United Kingdom; 2MaLIS group, Supelec, Metz, France; 3Department of Radiology, Brigham & Womens Hospital, Harvard Medical School, Boston, MA, United States

The Electrocardiogram (ECG) is analyzed during MRI, but is restricted to R wave detection because of the Magnetohydrodynamic (MHD) effect, induced by the blood flow inside the B0 field. Emerging applications, such as MRI-guided cardiac surgery or intra-cardiac electrophysiology, requires a deeper ECG analysis.