A. Pair 3,4 of the HD-Grid records a 0.5 mV signal, while the signal recorded by pair 1,2 is of 0.22 mV. The distal dipole of the ablation catheter records a signal of 0.06 mV. B. Ablation catheter contact force of 14 grams during PVI. Complete disappearance of the HD-Grid signal at the fourth beat after the beginning of RF (white arrow and star). C and D. The related 3d anatomical maps.
Fig. 3. Intra-patient HD map: comparison of along, across and HD-wave maps