International Journal on Magnetic Particle Imaging IJMPI
Vol. 9 No. 1 Suppl 1 (2023): Int J Mag Part Imag
https://doi.org/10.18416/IJMPI.2023.2303074

Proceedings Articles

A Novel Approach to FFL Trajectory Analysis

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Frauke Niebel (Fraunhofer Research Institution for Individualized and Cell-Based Medical Engineering IMTE), Jonas Schumacher (Fraunhofer Research Institution for Individualized and Cell-Based Medical Engineering IMTE), Fabian Mohn (Section for Biomedical Imaging, University Medical Center Hamburg-Eppendorf), Mandy Ahlborg (Fraunhofer Research Institution for Individualized and Cell-Based Medical Engineering IMTE), Thorsten M. Buzug (Fraunhofer Research Institution for Individualized and Cell-Based Medical Engineering IMTE), Matthias Graeser (Fraunhofer Research Institution for Individualized and Cell-Based Medical Engineering IMTE)

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Abstract

The sampling trajectory is an important parameter of a magnetic particle imaging (MPI) system and should be selected in order to guarantee the best image quality constrained by hardware limitations. A simulation study is performed with the side conditions of a permanent magnet-based field-free line (FFL) scanner system evaluating multiple trajectory types (radial, spiral, uniformspiral, flower) and trajectory densities in terms of spatial resolution. The findings provide information on suitable FFL trajectories and indicate initial trends for advantageous sampling patterns in the reference system. Within the used software framework, which has the potential to generate sequences based on real measurement data, we present here a novel approach to FFL trajectory analysis.

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