Solution of the inverse problem of magnetic induction tomography (MIT) with multiple objects: analysis of detectability and statistical properties with respect to the reconstructed conducting region

Physiological Measurement
Robert MerwaHermann Scharfetter

Abstract

Magnetic induction tomography (MIT) is a technique to image the passive electrical properties (i.e. conductivity, permittivity, permeability) of biological tissues. The inverse eddy current problem is nonlinear and ill-posed, thus a Gauss-Newton one-step method in combination with four different regularization schemes is used to obtain stable solutions. Simulations with 16 excitation coils, 32 receiving coils and different spherical perturbations inside a homogeneous cylinder were computed. In order to compare the statistical properties of the reconstructed results a Monte Carlo study with a SNR of 40 dB and 20 dB was carried out. Simulated conductivity perturbations inside a homogeneous cylinder can be localized and resolved and the results prove the feasibility of difference imaging with MIT.

References

Mar 17, 2000·Physiological Measurement·A KorjenevskyS Sapetsky
Jun 19, 2003·Physiological Measurement·Bernhard BrandstätterHermann Scharfetter
Jun 19, 2003·Physiological Measurement·Robert MerwaHermann Scharfetter
Jul 10, 2003·IEEE Transactions on Bio-medical Engineering·Hermann ScharfetterJavier Rosell
Mar 31, 2005·Physiological Measurement·Robert MerwaHermann Scharfetter

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Citations

Aug 3, 2014·The Review of Scientific Instruments·J A Leyva-CruzM E Cano
Aug 24, 2011·IEEE Transactions on Bio-medical Engineering·Doğa GürsoyHermann Scharfetter

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