Signal-averaged P wave analysis for delineation of interatrial conduction – Further validation of the method

Table 1 P wave duration estimation methodologies

	Magnification	Artefact filtering	Signal averaging	Bandpass filtering	Noise threshold
D1	no	no	no	no	-
D2	no	yes	no	no	-
D3	yes	no	no	no	-
D4	yes	yes	no	no	-
D5	yes	yes	yes	no	-
D6	yes	yes	yes	yes	0.20 μV
D7	yes	yes	yes	yes	0.10 μV
D8	yes	yes	yes	yes	0.05 μV

Non-magnified ECG (50 mm/s, 10 mV/mm), magnified ECG (1000 mm/s; 0.1 mV/mm). Artefact filtering: high-pass filtering at 0.5 Hz and 50 Hz bandstop filtering. Bandpass filtering: 40–250 Hz. The P wave duration was determined using three different noise level thresholds.

ISSN: 1471-2261