Lesion components listed for the CTI as a whole and stratified according to anatomical site. Significant p values (<0.05) are highlighted in bold.
Across all procedures, a total of 682 ablation lesions were delivered (IVC: 206, Mid CTI: 242, V: 234) and 6,187,716 data points extracted. The number of ablation lesions per procedure ranged from 5 to 44. For the whole CTI, there was a strong correlation between peak AI and mean impedance drop (figure 1 - R2=0.89, p<0.0001). However, analysis by anatomical site demonstrated significant variation in this relationship (figure 2).