Clinical implications
There are few studies on LI drops by RF applications and lesion size considering the catheter contact angle. We found that the LI drop was an important factor for creating an effective RF lesion with 2 different LI-sensing catheters. In addition, we demonstrated that the catheter contact angles affected the LI drop and lesion size. The results of this study would be helpful to create effective RF lesions with a comprehension of the LI drop at each catheter angle.