Fig 5. Examples demonstrating three different categories of transmembrane potential maps in the stochastic group.

(A) A non-stable disorder with the rotor center of spiral wave moving away from the endocardium sheet after colliding with breakthroughs. (B) A stable disorder with spiral waves sustaining on the endocardium sheet even with collisions of breakthroughs. (C) A stable disorder maintaining with an intramural re-entry after spiral wave disappearing during collisions of breakthroughs as shown in the red box. (D) Circuit diagram of the intramural re-entry in (C). Red arrows denote the loop lines of intramural re-entry.