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A differential high-resolution motorized multi-projection approach for an experimental Magnetic Induction Tomography prototype

Martins, RCM ; Caeiros, J. ; Rosa, B. ; Brás, N.

A differential high-resolution motorized multi-projection approach for an experimental Magnetic Induction Tomography prototype, Proc IEEE International Symp. on Medical Measurements and Applications - MeMeA, Budapest, Hungary, Vol. 1, pp. 91 - 94, May, 2012.

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Abstract
In this paper we present the first experimental results for a multi-projection differential coil Magnetic Induction To- mography system. All current systems are static, allowing only the acquisition of a small number of fixed projections. The setup here presented allows for a much higher density of projection measurements which reduces the ill-posedness of the inverse problem. This is further enhanced through the use of a top-view camera to detect the hardest conductivity discontinuities. The experimental setup, itself, is based on a previously presented design and consists of a geometrically centered excitation and four pairs of anti-series differential coils equally spaced at 45o. We show simulation and experimental results for a set of 3D phantom structures.