Title :
Finite element modeling of impedance imaging using induced currents
Author :
Ruan, W. ; Guardo, R. ; Adler, A. ; Savoie, G.
Author_Institution :
Inst. de Genie Biomed., Ecole Polytech. de Montreal, Que., Canada
Abstract :
A 2-D finite element model of solving the forward problem for induced current impedance imaging is described. The improved Newton-Raphson method is used as the image reconstruction algorithm. Dynamic images obtained by the current induction method are presented. It is found that the improved Newton-Raphson method can stabilize the ill-posed inverse problem in EIT
Keywords :
Newton-Raphson method; electric impedance imaging; finite element analysis; image reconstruction; medical image processing; physiological models; 2-D finite element model; dynamic images; finite element modeling; forward problem; ill-posed inverse problem; image reconstruction algorithm; impedance imaging; improved Newton-Raphson method; induced currents; Coils; Conductivity; Current measurement; Electrodes; Finite element methods; Image reconstruction; Impedance; Inverse problems; Newton method; Tomography; Voltage measurement;
Conference_Titel :
Engineering in Medicine and Biology Society, 1994. Engineering Advances: New Opportunities for Biomedical Engineers. Proceedings of the 16th Annual International Conference of the IEEE
Conference_Location :
Baltimore, MD
Print_ISBN :
0-7803-2050-6
DOI :
10.1109/IEMBS.1994.411916
