Electrical impedance tomography using induced currents: an experimental study

Author

Gencer, Nevzat Guneri ; Ìder, Y. Ziya

Author_Institution

Dept. of Electr. & Electron. Eng., Middle East Tech. Univ., Ankara, Turkey

fYear

1993

fDate

31 Oct-6 Nov 1993

Firstpage

1794

Abstract

The theory behind induced current EIT is summarized. A prototype data acquisition system is described which is realized to verify the theoretical studies. Data collected from a two-dimensional (2D) object distribution is compared with the calculated data obtained by the finite element method. It is shown that the data acquisition system is capable of collecting real data which closely follows the theoretically expected perturbation in boundary potential differences. Images reconstructed by real data sets are indicatives of the sizes and locations of the inhomogeneities in the saline solution

Keywords

electric impedance imaging; 2D object distribution; boundary potential differences; data acquisition system; electrical impedance tomography; finite element method; induced currents; inhomogeneities location; inhomogeneities size; medical diagnostic imaging; real data sets; reconstructed images; saline solution; theoretically expected perturbation; Cables; Conductivity; Electrodes; Equations; Image reconstruction; Impedance; Magnetic field measurement; Prototypes; Tomography; Voltage;

fLanguage

English

Publisher

ieee

Conference_Titel

Nuclear Science Symposium and Medical Imaging Conference, 1993., 1993 IEEE Conference Record.

Conference_Location

San Francisco, CA

Print_ISBN

0-7803-1487-5

Type

conf

DOI

10.1109/NSSMIC.1993.373601

Filename

373601