2.7 Relationship between the fibrotic tissue properties and AF
rotors
To clarify the relationship between the fibrotic tissue properties and
AF rotors, the following were assessed: 1) the distribution of the NPAs,
2) optimal fibrotic heterogeneity and density associated with the NPAs,
3) fibrotic tissue classification according to the fibrotic
heterogeneity and density, 4) the incidence of NPAs grouped by the
fibrotic tissue properties, and 5) the relationship between the CFAEs
and AF rotors.