Figure 5. Computerized aid for pace mapping. Pace mapping is extremely useful in the PVC ablation however, it has some disadvantages like the time consuming and a huge dependency of the subjective interpretation of the operator. This software, developed by the authors, as other products on the market, has promoted great agility and efficiency in the pace mapping technique. In A and B there are two examples of pace mapping inappropriate for ablation, however in C the mapping is excellent that is, a place with a high probability of ablation success (all the flags are green).