  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.
