Technical Approach
This global vector-based algorithm was first reported by Anter et al.4 and has several components. First, the algorithm
quantifies AT activation globally within the chamber, and uses these
data to modify annotation of individual electrograms to produce a
physiologically plausible final map. Second, the algorithm presents maps
of vector propagation, that can differentiate focal or reentrant
propagations from dead-end pathways, and of conduction velocity, that
can identify slow conducting isthmuses of reentry. Finally, the authors
write that the resulting activation map is independent of the mapping
window, and displays color coded isochrones without predefined early and
late activation (figure 1 from Anter et al. 4)