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.