Figure 2
Example of a 3D bipolar voltage map (CARTO picture/posteroanterior view)
obtained with multielectrode catheter and ablation catheter. Regions in
purple represent normal myocardium, other colored regions represent
low-voltage areas (voltage cutoff: 0.05–0.5 mV).
(A) Substrate map obtained before RF ablation shows the surgical lesion
set.
(B) Post-RF ablation map of the same patient shows wide area antral PV
ablation and concomitant isolation of the posterior left atrial wall.