Derivation and Verification of the Relationship between Ablation Index and Baseline Impedance

Table 1

The relationship among different basic impedance, power, and the ranges of ablation damage when the current and pressure were relatively constant.

Impedance (Ω)	Power (W)	AI	Average pressure (g)	Depths (mm)	Widths (mm)
99.0 ± 1.0	25	392.6 ± 6.9	10.0 ± 1.0	4.13 ± 0.28	6.40 ± 0.20
119.8 ± 1.5	30	452.2 ± 7.8	11.2 ± 0.8	4.14 ± 0.24	6.57 ± 0.90
140.4 ± 0.9	35	486.2 ± 12.6	11.0 ± 1.0	4.41 ± 0.23	6.68 ± 0.30
159.2 ± 1.6	40	519.6 ± 10.0	10.6 ± 0.5	4.38 ± 0.32	6.01 ± 0.44
180.0 ± 0.0	45	559.6 ± 11.3	11.0 ± 1.0	4.37 ± 0.28	6.17 ± 0.23

AI = Ablation index.