Real-time epicardial excitation time map overlay

Abstract

This paper presents a method to display Epicardial Excitation Time (ECET) map information intuitively to a surgeon. The method uses Conditional Density Propagation to track the epicardium during the complete cardiac cycle. Then, combining this algorithm with electrophysiological mapping techniques, pre-recorded ECET maps are overlay onto the surgeons endoscope stream to give direct feedback on cardiac excitation propagation. To the best of our knowledge, this is the first report of electrophysiologic data being augumented with a surgeons endoscope stream. © 2010 Springer-Verlag.