Abstract

Recently, there has been marked progress in electrical impedance imaging in which cross-sectional image reconstructions inside the human body are pursued. These techniques also have wider applications as imaging methods in medicine, biotechnology, non-destructive testing, the monitoring of industrial processes, and in other areas. Their imaging techniques allow to visualize new contrast information of biological tissues and organs exhibiting distinct electrical properties depending on their physiological functions and pathological states. The mathematical models for bioimpedance imaging are expressed as nonlinear inverse problems involving time-harmonic Maxwell’s equations with electrical tissue properties being described by frequency-dependent conductivity and permittivity. This chapter reviews electrical tissue property imaging modalities.

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