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

Atul S. Minhas, Munish Chauhan, Rosalind J. Sadleir

Research output: Contribution to conferenceAbstract

Abstract

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.
Original languageEnglish
Publication statusPublished - 2017
Externally publishedYes
EventThe ISMRM 25th Annual Meeting and Exhibition (2017) - Honolulu, United States
Duration: 22 Apr 201727 Apr 2017
http://www.ismrm.org/2017-annual-meeting-exhibition/

Conference

ConferenceThe ISMRM 25th Annual Meeting and Exhibition (2017)
CountryUnited States
CityHonolulu
Period22/04/1727/04/17
Internet address

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    Minhas, A. S., Chauhan, M., & Sadleir , R. J. (2017). Analysis of magnetohydrodynamic effects in current injection induced magnetic flux density images at very high magnetic fields. Abstract from The ISMRM 25th Annual Meeting and Exhibition (2017), Honolulu, United States.