Fig. 3

Snapshots of activation during VF in one normal and one HF-affected dog at the 3 min LDVF. Recordings of VF activation from one control heart are shown in Fig. 3 a and b, with Fig. 3 a I representing the posterior wall and II representing the anterior wall of the LV. In Fig. 3 b, I indicates the posterior wall, and II indicates the anterior wall of RV; as shown, the posterior wall activates faster than the anterior wall. Recordings of VF activation from one HF-affected animal are shown in Fig. 3 c and d. Figure 3 c I shows the septal wall, and II shows the anterior wall of the LV. Figure 3 d I shows the septal wall, and II indicates the anterior wall of the RV; the septal wall activates faster than the anterior wall