Can Sequentially Collected Electrograms Be Effectively Used for Dominant Frequency Mapping During Persistent AF?

Sequential electrogram collection using multipolar catheters (Pantaray, HD Grid, etc.) is increasingly used in persistent atrial fibrillation (persAF) mapping. However, it is unknown whether sequential mapping is suitable for dominant frequency (DF) mapping, as DF tends to be spatiotemporally unstable. We aim to model and compare simultaneously and sequentially collected EGMs for DF mapping.