Work

Imaging cardiac activity by the D-bar method for electrical impedance tomography

Year: 2006

Type: article

Abstract: A practical D-bar algorithm for reconstructing conductivity changes from EIT data taken on electrodes in a 2D geometry is described. The algorithm is based on the global uniqueness proof of Nachman (1996 Ann. Math. 143 71-96) for the 2D inverse conductivity problem. Results are shown for reconstructions from data collected on electrodes placed around the circumference of a human chest to reconstruct a 2D cross-section of the torso. The images show changes in conductivity during a cardiac cycle.

Source: Physiological Measurement

DOI: 10.1088/0967-3334/27/5/s04

Authors: D Isaacson, J L Mueller, J C Newell, S Siltanen

Institutions: Rensselaer Polytechnic Institute, Colorado State University, University of Tampere

Language: English

Topic: Electrical and Bioimpedance Tomography

Subfield: Electrical and Electronic Engineering

Field: Engineering

Domain: Physical Sciences

Open Access status: bronze

Funders: National Science Foundation, National Institute of Biomedical Imaging and Bioengineering

Awards: The D-bar Method in Electrical Impedance Tomography, An Engineering Research Center for Subsurface Sensing and Imaging Systems - CenSSIS, G7273411989