Comparison of electrical impedance tomography reconstruction techniques applied to IMPETOM system

Author

Santos, Euzeli ; Simini, Franco

Author_Institution

Facultades de Med. e Ing., Univ. de la Republica, Montevideo, Uruguay

fYear

2013

fDate

10-13 Nov. 2013

Firstpage

1

Lastpage

4

Abstract

Electrical Impedance Tomography (EIT) reconstruction can estimate thorax fluid content. Its use in critically ill patients is promising and may prove clinically useful. Boundary voltages (16-electrode frames) were obtained with our 50 kHz-5 mA IMPETOM system. Comparison of the 492-element Newton-Raphson algorithm with EIDORS open source tool (NOSER & GREIT algorithms), applied to a healthy volunteer, suggests that anatomically adjusted 3D models give better results. Nevertheless for phantom imaging an initial uniform image yields more accurate reconstructions. The results help in the selection and implementation of the reconstruction method for systems similar to IMPETOM.

Keywords

Newton-Raphson method; bioelectric potentials; biological organs; biomedical electrodes; electric impedance imaging; image reconstruction; medical image processing; phantoms; 16-electrode frames; 492-element Newton-Raphson algorithm; EIDORS open source tool; GREIT algorithms; IMPETOM system; NOSER algorithms; adjusted 3D models; boundary voltages; critically ill patients; current 5 mA; electrical impedance tomography reconstruction; frequency 50 kHz; initial uniform image; phantom imaging; thorax fluid content; Conductivity; Current measurement; Electrodes; Image reconstruction; Impedance; Tomography; Voltage measurement;

fLanguage

English

Publisher

ieee

Conference_Titel

Bioinformatics and Bioengineering (BIBE), 2013 IEEE 13th International Conference on

Conference_Location

Chania

Type

conf

DOI

10.1109/BIBE.2013.6701621

Filename

6701621