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Abstract #1461

An adjustable susceptibility phantom for evaluation of field mapping and fat fraction estimation algorithms

Paul A. Picot1, Junmin Liu1, and Maria Drangova1

1Robarts Research Institute, the University of Western Ontario, London, ON, Canada

We demonstrate a method to produce phantoms with arbitrary and easily adjustable susceptibility distributions. Objects in a magnet bore cause high order inhomogeneities not correctable by shimming, and confound magnetic field mapping and phase unwrapping algorithms. We show a wire winding carrying direct current can simulate an object of adjustable susceptibility, for rapid testing of field mapping and phase unwrapping methods.

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