Meeting Banner
Abstract #1005

Analysis of magnetohydrodynamic effects in current injection induced magnetic flux density images at very high magnetic fields

Atul S Minhas1, Munish Chauhan2, and Rosalind J Sadleir2

1Centre for Pre-clinical Imaging, Department of Cellular and Molecular Physiology, University of Liverpool, Liverpool, United Kingdom, 2School of Biological and Health Systems Engineering, Arizona State University, Tempe, AZ, United States

Magnetic resonance imaging based electrical conductivity imaging of biological tissues could be highly challenging at magnetic fields of the order of 18.8T. We could see significant magnetohydrodynamic (MHD) effects in low viscosity materials at such fields. In this study, we investigated these effects using saline and agarose phantoms and explained the MHD mechanism using a fluid flow model coupled with electromagnetic field equations. Experimental and simulation results showed a correlation between the higher magnetic field and velocity. This relation changed from exponential to linear as the viscosity of material increased. The velocity was negligible for highly viscous materials such as agarose.

This abstract and the presentation materials are available to members only; a login is required.

Join Here