Statistical analysis
All statistical analyses were performed using JMP 14 software (SAS
Institute Inc., Cary, NC, USA). The data are presented as the mean ±
standard error (SE) for continuous variables. The differences in lesion
size (maximum lesion width, surface width, and lesion depth), LI rise,
and LI drop among the three catheter angles were assessed by the
analysis of variance in each CF, followed by post hoc analysis using the
Tukey HSD test. The level of statistical significance was set at p
<0.05.