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Abstract #1251

Three-dimensional in-vivo human Imaging on a 50 mT low-cost portable Halbach Array

Thomas O'Reilly1, Wouter Teeuwisse1, Bart de Vos2, and Andrew Webb1
1C.J. Gorter Center for High Field MRI, Leiden University Medical Center, Leiden, Netherlands, 2Circuits and Systems, Delft University of Technology, Delft, Netherlands

We show the first 3D in-vivo images acquired from our custom-built 50 mT low-cost Halbach based portable MRI scanner. 3D Images of a knee were acquired with a ~2 mm isotropic resolution using a 3D turbo spin echo sequence in less than 12 minutes. Gradient non-linearity induced image distortions are minimal within the central ~10 cm of the magnet bore length, but require correction beyond this point. These results represent the latest step towards our goal of creating a fully portable MRI scanner targeting pediatric neuroimaging in the developing world for less than 30 000 euros.

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