Title :
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
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;
Conference_Titel :
Bioinformatics and Bioengineering (BIBE), 2013 IEEE 13th International Conference on
Conference_Location :
Chania
DOI :
10.1109/BIBE.2013.6701621
