Comparison of spectral estimators for characterizing fractionated atrial electrograms

Table 1 Dominant amplitude

Method	MN - Par	SD - Par	MN - Per	SD – Per	MN Signif	SD Signif
NSE	1.472	0.231	1.839	0.604	p < 0.001	p < 0.001
NSH	1.192	0.225	1.521	0.483	p < 0.001	p < 0.001
AFA	0.141	0.172	1.173	4.637	p = 0.140	p < 0.001
DFT	0.688	0.297	0.849	0.375	p = 0.004	p = 0.064

Par paroxysmal AF, Per persistent AF, MN mean, SD standard deviation, Signif significance. For DA and DF, only pulmonary vein ostia recordings were used and N = 60 and 76, respectively, for paroxysmal versus persistent CFAE. For MP, all sites were used and N = 90 and 114, respectively, for paroxysmal versus persistent CFAE.

ISSN: 1475-925X