Ablation Lesion Data Analysis
The STSF catheter was used for acquisitions of FTI/AI and ablation
lesion data. The calibration of the STSF catheter was performed every 20
minutes. The settings of the automatic lesion annotation software
(VISITAGTM Module, Biosense Webster) were as follows:
for location stability, minimum time was 3 seconds and maximum range 3.0
mm; force over time was 25% with a minimum force of 3 g. The lesion tag
size was a 2 mm radius. The parameters for each
VISITAGTM ablation point were as follows: RF
application time, average CF, RF power, impedance drop (the difference
between the pre-ablation and the lowest recorded impedance values during
ablation), FTI, and AI. The data were compared between FTI and TAI
protocols.