Algorithmic channel decoupling for misaligned receive coils in magnetic particle imaging

Magnetic particle imaging (MPI) uses orthogonal receive coils aligned with the directions of the drive-field coils for signal detection. In case of misaligned receive coils, the particle magnetization couples differently into the receive coils such that a re-calibration involving the measurement of a new system function would be necessary. In this work, we propose a method for decoupling the channels algorithmically into the drive-field coil directions using an MPI transfer function matrix. In that way, system functions for different receive coil units can be reused.

DDC Class

004: Informatik

610: Medizin

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Research funding: The authors thankfully acknowledge the financial support by the German Research Foundation (DFG, grant number KN 1108/7-1 and GR 5287/2-1).

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https://creativecommons.org/licenses/by/4.0/

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417-Article Text-2158-1-10-20220320.pdf

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Algorithmic channel decoupling for misaligned receive coils in magnetic particle imaging