Abstract #4509

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

Jiazheng Zhou^1,2, Ali Aghaeifer^1,2,3, Jonas Bause^1,2,3, Alexander Loktyushin^1,4, Gisela Hagberg^1,3, and Klaus Scheffler^1,3

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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