32-electrode electrical impedance tomograph-software design and static images

Author

Woo, Eung Je ; Hua, Ping ; Tompkins, Willis J. ; Webster, John G.

Author_Institution

Dept. of Electr. & Comput. Eng., Wisconsin Univ., Madison, WI, USA

fYear

1989

Firstpage

455

Abstract

A 32-electrode, 12-bit electrical impedance tomograph (EIT) which is capable of injecting optimal patterns of currents into an object to achieve maximum distinguishability is presented. The software for the system is described, and static images reconstructed from a circular 2-D phantom are shown. The EIT software consists of four parts: the interactive graphical finite-element mesh generator; the sparse linear system equation solver including node renumbering schemes; the calculation of the optimal patterns of injection current and the implementations of the EIT image reconstruction algorithms; and image display and postprocessing

Keywords

bioelectric phenomena; biomedical equipment; computerised tomography; medical diagnostic computing; circular 2D phantom; image display; image postprocessing; image reconstruction algorithms; interactive graphical finite-element mesh generator; medical diagnostic imaging; node renumbering schemes; optimal current patterns injection; software design; sparse linear system equation solver; static images; Equations; Finite element methods; Image reconstruction; Imaging phantoms; Impedance; Linear systems; Mesh generation; Software algorithms; Software systems; Tomography;

fLanguage

English

Publisher

ieee

Conference_Titel

Engineering in Medicine and Biology Society, 1989. Images of the Twenty-First Century., Proceedings of the Annual International Conference of the IEEE Engineering in

Conference_Location

Seattle, WA

Type

conf

DOI

10.1109/IEMBS.1989.95816

Filename

95816