Improving single harmonic MPI performance Using perpendicular magnetization

Lei Li; Yidong Liao; Yunpeng Gao; Zhonghao Zhang; Qibin wang; Chenxiao Xu; Ning He; Dawei Ge; Shouping Zhu

International Journal on Magnetic Particle Imaging IJMPI
Vol. 9 No. 1 Suppl 1 (2023): Int J Mag Part Imag

Short Abstracts

Improving single harmonic MPI performance Using perpendicular magnetization

Lei Li , Yidong Liao , Yunpeng Gao , Zhonghao Zhang , Qibin wang , Chenxiao Xu , Ning He , Dawei Ge , Shouping Zhu

Abstract

In single harmonic magnetic particle imaging (MPI), a reconstructed image can be obtained by deconvolution using the point spread function (PSF) of the 3rd harmonic. However, harmonic signals from superparamagnetic iron oxide nanoparticles (SPIOs) at the edge of the field of view (FOV) cannot be picked up, leading to artifacts in the reconstructed image. We propose an improved single harmonic MPI method using perpendicular magnetization to compensate for harmonic data loss. Experimental results show that the image reconstruction quality is improved using our method.

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International Journal on Magnetic Particle Imaging IJMPI

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