Investigating Differences in CFAE Discrimination as Performed by CARTO and NavX Algorithms

**** P<0.0001 CARTO (Biosense Webster) NavX (St Jude Medical) Introduction • CARTO (Biosense Webster) uses the Interval Confidence Level (ICL) as primary metric, with Average and Shortest Complex Intervals (ACI, SCI) as complementary metrics for Complex Fractionated Atrial Electrogram (CFAE) identification.[1] • NavX (St Jude Medical) uses CFE-Mean as primary metric and CFE-StdDev as complementary metric for CFAE identification.[2]