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Abstract #4509

Magnetic field estimation with ultrashort echo time (UTE) imaging.

Jiazheng Zhou1,2, Ali Aghaeifer1,2,3, Jonas Bause1,2,3, Alexander Loktyushin1,4, Gisela Hagberg1,3, and Klaus Scheffler1,3

1High-Field Magnetic Resonance, Max Planck Institute for Biological Cybernetics, Tübingen, Germany, 2Graduate Training Center of Neuroscience, IMPRS, University of Tübingen, Tübingen, Germany, 3Biomedical Magnetic Resonance, University Hospital Tübingen (UKT), Tübingen, Germany, 4Empirical Inference, Max Planck Institute for Intelligent Systems, Tübingen, Germany

We have used UTE sequence to obtain the subject-specific susceptibility distribution, which was then used to simulate motion-induced B0 change at two head positions. A Fourier-based dipole-approximation method was used to map susceptibility to B0. We have evaluated the simulation results against the measured B0 at the same positions and observed a good agreement between the simulated and real data.

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