volume | PIER Journals

Abstract

Magneto-Acousto-Electrical Tomography (MAET), as one of the electrical characterization imaging methods, is used to image the electrical conductivity of biological tissues, which can be used for noninvasive, radiation-free imaging of biological tissues. Currently, most of the studies on MAET are simulations and experimental validations of simple structural models, and there is no sufficient validation of models with complex structures, and most of the results cannot comprehensively invert complex structural models with multi-gradient conductivity distributions. To address this problem, this paper proposes a MAET method for conductivity reconstruction of complex structural models which is applicable to 2D problems and may be extendable to 3D problems. Based on this method, the conductivity distribution of normal and diseased tissues in the simulation model of complex structures was reconstructed, and the consistency between experimental and simulated signals was verified. The results show that the MAET method for conductivity reconstruction of complex structural models proposed in this paper is conducive to improving the image resolution as well as the structural similarity, enhancing the conductivity distribution information of complex structural targets with inhomogeneous shapes and multi-gradient conductivity distributions.

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Mr. Xingchen Zhang

Dr. Di Fan

Dr. Yuanyuan Li

Dr. Huiling Liu

Dr. Jing Liu

Prof. Guo-Qiang Liu