A Real-time D-bar Algorithm for 2-D Electrical Impedance Tomography Data

TL;DR

This paper demonstrates a real-time implementation of the D-bar algorithm for 2-D electrical impedance tomography, successfully reconstructing conductivity changes in human chest data and showcasing the method's practical feasibility.

Contribution

It introduces a fast, real-time D-bar reconstruction algorithm specifically for 2-D EIT data on human subjects, including the first such images from a pairwise current system.

Findings

Real-time D-bar reconstructions are feasible for human chest data.

First D-bar images from EIT data on a human subject with pairwise current injection.

Demonstrates potential for clinical EIT applications.

Abstract

The aim of this paper is to show the feasibility of the D-bar method for real-time 2-D EIT reconstructions. A fast implementation of the D-bar method for reconstructing conductivity changes on a 2-D chest-shaped domain is described. Cross-sectional difference images from the chest of a healthy human subject are presented, demonstrating what can be achieved in real time. The images constitute the first D-bar images from EIT data on a human subject collected on a pairwise current injection system.