Title :
A Novelty Dynamic Image Reconstruction Algorithm in Electrical Impedance Tomography Based on Nachman Theory
Author_Institution :
Dept. of Comput. & Inf. Eng., Wuhan Polytech. Univ. (WHPU), Wuhan, China
Abstract :
Electrical impedance tomography (EIT) is a medical imaging technique in which an image of the conductivity or permittivity of part of the body is inferred from surface electrical measurements. Mathematically, the problem of recovering conductivity from surface measurements of current and potential is a non-linear inverse problem and is severely ill-posed. In this paper, we propose a novelty algorithm which based on Nachman theory. The algorithm is validated by numerical simulations of a domain with fixed resistively and by experimental data collected from the boundary of a human chest during normal breathing. The experiment result shows that the algorithm takes the advantage of speed and accurate.
Keywords :
electric impedance imaging; electrical conductivity; image reconstruction; inverse problems; medical image processing; permittivity; Nachman theory; conductivity; dynamic image reconstruction; electrical impedance tomography; human chest; medical imaging technique; nonlinear inverse problem; numerical simulation; permittivity; surface electrical measurement; Conductivity; Current measurement; Image reconstruction; Impedance; Mathematical model; Tomography; Voltage measurement; Electrical impedance tomography (EIT); finite element method; forward problem; inverse problem;
Conference_Titel :
Information Technology and Applications (IFITA), 2010 International Forum on
Conference_Location :
Kunming
Print_ISBN :
978-1-4244-7621-3
Electronic_ISBN :
978-1-4244-7622-0
DOI :
10.1109/IFITA.2010.131