#$%^&*AU2016247047A120170525.pdf#####ABSTRACT A gap between a plurality of ablation sites in a heart that hinders electrical propagation therethrough is found by projecting the locations of the sites in a 35 dimensional coordinate system onto a simulation plane, identifying a set of shortest 3dimensional paths that correspond to 2-dimensional connections between pairs of the projected locations of the sites, and reporting a gap as a longest one of the set.1/17 ...