Development of an electrical impedance tomograph

Author

Montellano, C. ; Garay, E. Cardiel L ; Rodriguez, S. ; Rogeli, P.

Author_Institution

Electr. Eng. Dept., CINVESTAV-IPN, Mexico City, Mexico

fYear

2011

fDate

26-28 Oct. 2011

Firstpage

1

Lastpage

4

Abstract

This article describes the design of an electrical impedance tomograph (EIT), with the aim to provide a tool to detect morphological changes in tissues. This design consists of an array of 16 electrodes distributed on a ring way. The 4 points technique is used to record the amplitude of the electrical impedance. The array was placed around of a tank filled with a saline solution and objects of different sizes and shapes as test material. The operation of the system is controlled by a program developed on LabVIEW, the impedance data recorded are sent to a MATLAB toolbox called EIDORS to be processing. The final result is a reconstructed image in witch objects larger than 1 cm of contrasting impedance can be recognized.

Keywords

biomedical electrodes; electric impedance imaging; image reconstruction; mathematics computing; medical image processing; virtual instrumentation; EIDORS; LabVIEW; MATLAB toolbox; electrical impedance tomograph; electrode array; image reconstruction; impedance data; morphological changes; saline solution; tissues; Current measurement; Electrodes; Image reconstruction; Impedance; Instruments; Tomography; Voltage measurement; Electrical impedance; phantom; tomography;

fLanguage

English

Publisher

ieee

Conference_Titel

Electrical Engineering Computing Science and Automatic Control (CCE), 2011 8th International Conference on

Conference_Location

Merida City

Print_ISBN

978-1-4577-1011-7

Type

conf

DOI

10.1109/ICEEE.2011.6106665

Filename

6106665