Figure 1. Analysis of contact force (CF)
parameters. Small inadvertent movements contribute to catheter
instability and fluctuations in contact force (CF). Measurements
obtained from the EAM system were used to assess mean CF and CF
variability for each lesion. Poor contact was considered when CF dropped
below 5g; lesions with poor contact for more than 10% of the RF
application time were defined as “inefficient contact lesions.”