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.2023.2303049

Proceedings Articles

Study on duty ratio of handheld Magnetic Particle Imaging system

Main Article Content

Abstract

This paper investigates the effect of duty ratio on the background signal of handheld magnetic particle imaging (MPI) system. The background signal is the most influential noise signal in MPI system. Hand-held MPI systems need to be used continuously for long periods of time, so they are susceptible to interference from background signals. By adjusting the duty ratio and single detection time used by the system, a set of parameters with minimal background signal variation is determined. During the experiment, we summarized testing procedures to determine the most appropriate duty ratio for the MPI system, which can be tried on other MPI systems.

Article Details

References

[1] B. Gleich and J. Weizenecker. Tomographic imaging using the nonlinear response of magnetic particles. Nature, 435(7046):1214–1217, 2005.
[2] A. Tonyushkin. Single-sided field-free line generator magnet for multi-dimensional magnetic particle imaging. IEEE Transactions on Magnetics, 53(9):1–6, 2017.
[3] C. Z. Cooley, J. B. Mandeville, E. E. Mason, E. T. Mandeville, and L. L. Wald. Rodent cerebral blood volume (cbv) changes during hypercapnia observed using magnetic particle imaging (mpi) detection. NeuroImage, 178:713–720, 2018.
[4] E. E. Mason, E. Mattingly, K. Herb, M. ´Sliwiak, S. Franconi, C. Z. Cooley, P. J. Slanetz, and L. L. Wald. Concept for using magnetic particle imaging for intraoperative margin analysis in breast-conserving surgery. Scientific Reports, 11(1):1–16, 2021.
[5] H. Paysen, O. Kosch, J. Wells, N. Loewa, and F. Wiekhorst. Characterization of noise and background signals in a magnetic particle imaging system. Physics in Medicine & Biology, 65(23):235031, 2020.
[6] M. Graeser, T. Knopp, M. Grüttner, T. F. Sattel, and T. M. Buzug. Analog receive signal processing for magnetic particle imaging. Medical physics, 40(4):042303, 2013.
[7] K. Them, M. G. Kaul, C. Jung, M. Hofmann, T. Mummert, F. Werner, and T. Knopp. Sensitivity enhancement in magnetic particle imaging by background subtraction. IEEE transactions on medical imaging, 35(3):893–900, 2015.

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