The effect of receiver coil orientation on the system performance in magnetic induction tomography

摘要

Magnetic induction tomography (MIT) is a con-tactless imaging modality which aims at reconstructing the conductivity of biological tissue. It uses magnetic induction to excite the body and an array of sensor coils to detect the perturbations in the magnetic field. Aim of this paper is to analyze several receiver designs with different coil orientations with respect to reconstruction stability and resolution. The relationship between the conductivity and the data was modeled linearly and singular value decomposition of the Jacobian operator was used as a basis for the analysis. It was found that the proper choice of coil orientations significantly influences the number of usable singular vectors and thus the stability of image reconstruction.