Detecting Inclusions in Electrical Impedance Tomography Without Reference Measurements

Applications of Electrical Impedance Tomography in Neurology

Introduction: Electrical impedance tomography (EIT) is a non-invasive technique utilized in various medical applications, including brain imaging and other neurological diseases. Recognizing the physiological and anatomical characteristics of organs based on their electrical properties is one of the main applications of EIT, as each variety of tissue structure has its own electrical characteris...

Detection of multiple inclusions from sweep data of electrical impedance tomography

This paper considers detection of conductivity inhomogeneities inside an otherwise homogeneous object by electrical impedance tomography using only two electrodes: one of the electrodes is held fixed, while the other moves around the examined object. Unit current is maintained between the electrodes, and the corresponding (relative) potential difference is measured as a function of the position...

Characterization of Inclusions in Impedance Tomography

The inverse problem of electrical impedance tomography (EIT) is to recover the conductivity inside an investigated object from boundary measurements of current and voltage. There is a variety of methods to localize inclusions, i.e. domains in which the conductivity is different from the background conductivity such as e.g. the Factorization method. However, these qualitative methods don’t provi...

Locating multiple inclusions from sweep data of electrical impedance tomography

Complete Electrode Model of Electrical Impedance Tomography: Approximation Properties and Characterization of Inclusions

In electrical impedance tomography one tries to recover the spatial admittance distribution inside a body from boundary measurements. In theoretical considerations it is usually assumed that the boundary data consists of the Neumann-to-Dirichlet map; when conducting realworld measurements, the obtainable data is a linear finite-dimensional operator mapping electrode currents onto electrode pote...