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Abstract #0970

Dynamic permanent magnet array for ultra-low field magnetic resonance imaging

Michael W. Vogel1, Viktor Vegh1, Ruben Pellicer Guridi1, and David C. Reutens1

1University of Queensland, St Lucia, Australia

Conventional MRI scanners rely on superconducting magnets making them heavy and expensive and putting MRI beyond the reach of much of the world’s population. Ultra-low field (ULF) MRI instruments offer the possibility of novel image contrast mechanisms, are less costly and are potentially portable, enabling use in unconventional situations. This project addresses ULF-MRI’s biggest challenge, low signal-to-noise ratio, by using the novel approach of dynamic, mechanically-operated small permanent magnet arrays to generate the magnetic fields required for prepolarisation and spatial encoding.

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