Reduction of radiation exposure in catheter ablation of atrial fibrillation: Lesson learned

Figure 2 Histogram of dose area product values (in Gy•cm²) for the whole procedure of pulmonary vein isolation in the same cohorts shown in Figure 1. As in Figure 1, there is a progressive and significant reduction in radiation exposure, expressed by the dose area product value. ^aP < 0.05 vs the previous cohort; ^bP < 0.0001 vs the previous cohort. DAP: Dose area product; CFS: Contact force sensing.