A zero-Laplacian approach to impedance imaging
Y. Capdeboscq (University of Oxford, UK), H. Ammari (CNRS & ESPCI, France), E. Bonnetier (Université Joseph Fourier, France), Mickael Tanter (Université Denis Diderot, France), Mathias Fink (Université Denis Diderot, France)
Biological tissues have different electrical properties that change with cell concentration, cellular structure, and molecular composition. Such changes of electrical properties are the manifestations of structural, functional, metabolic, and pathological conditions of tissues, and thus provide valuable diagnostic information. Since all the present EIT technologies are only practically applicable in feature extraction of anomalies, improving EIT calls for innovative measurement techniques that incorporate structural information. The core idea of the approach presented in this talk is to extract more information about the conductivity from data that has been enriched by coupling the electric measurements to localized elastic perturbations.