International Journal on Magnetic Particle Imaging IJMPI
Vol. 6 No. 2 Suppl 1 (2020): Int J Mag Part Imag
https://doi.org/10.18416/IJMPI.2020.2009043
2D Image using 2nd Harmonic Response Improved by Application of System Function
Main Article Content
Abstract
In general, a third harmonic component of a magnetic response is used for magnetic nanoparticle imaging (MPI). However, when applying a high AC modulated magnetic field to magnetic nano-particles (MNPs), the size of the apparatus become large, and a high power source is required. Thus, we have been investigating an imaging method using a second harmonic with a signal intensity higher than that of the third harmonic. Since the signal of the second harmonic component has positive and negative peaks, signal processing is necessary to represent the position of the MNPs. Therefore, we investigated a method to quantitatively represent the position and the content of magnetic nanoparticles not using differentiation but applying a system function. Results showed that the identification of the amount and the position of MNPs was possible.
Int. J. Mag. Part. Imag. 6(2), Suppl. 1, 2020, Article ID: 2009043, DOI: 10.18416/IJMPI.2020.2009043