Work

Efficient Iterative Reconstruction for an MPI Equilibrium Model with Anisotropy

Year: 2024

Type: article

Abstract: Image reconstruction in Magnetic Particle Imaging (MPI) typically requires a system matrix, obtained through a time-consuming calibration process. To bypass this, various model-based approaches have been explored. Recent work demonstrated successful reconstruction by adapting a Chebyshev approach with Tikhonov-regularized least squares (LS) under an equilibrium model with anisotropy. In this study, we introduce an efficient evaluation of the forward and adjoint operators for the anisotropy model, enabling the use of iterative solvers and alternative regularization methods for image reconstruction.

Source: International journal on magnetic particle imaging

DOI: 10.15480/882.15071

Authors: Durán, Daniel H., Scheffler, Konrad, Möddel, Martin, Knopp, Tobias

Institutions: University Medical Center Hamburg-Eppendorf, Hamburg University of Technology, Fraunhofer-Einrichtung für Individualisierte Medizintechnik

Language: English

Topic: Characterization and Applications of Magnetic Nanoparticles

Subfield: Biomedical Engineering

Field: Engineering

Domain: Physical Sciences

Open Access status: diamond

OpenAlex ID: W6888045340

FWCI: 0.105

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Cited by: 1

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