Gradient Free MRI with a rotating magnet and receiver fields
Somaie Salajeghe1, Paul Babyn2, Logi Vidarsson3, and Gordon E. Sarty1
1Biomedical Engineering, University of Saskatchewan, Saskatoon, SK, Canada, 2Medical Imaging, University of Saskatchewan, Saskatoon, SK, Canada, 3LT Imaging, Toronto, ON, Canada
Portable MRI can be possible by eliminating gradient coils and B0
homogeneity requirements. Relaxing the B0 homogeneity requirements
leads to non-uniform B0 field. In-homogeneous B0 fields
have the potential to encode spatial information in one direction for use in
novel image encoding schemes. We investigated the possibility of image
reconstruction of the signal from a non-uniform rotating magnetic field and two
rotating RF receivers. Our results indicate that this is a feasible
approach.
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