Electrocardiogram Delineation in a Wistar Rat Experimental Model

Table 1

Performance of wavelet transform based ECG delineator applied to Wistar rats ECG database. We can observe the results of sensitivity and positive predictive value of this work in comparison with both experienced observers ( and ). The analysis of the ECG variables was carried out manually by two experienced observers using a computer calibrated cursor. Also, interobserver ( versus ) annotation differences mean and variability are presented. Moreover, delineation of showed an overall performance that was computed as a mean value between the characteristic points for each electrocardiographic wave, such as Se and of 99.2% and 83.9% for P-wave, 100% and 99.9% for QRS complex, and 100% and 99.8% for T-wave, respectively.

	Param.
This work versus	Se (%)	99.3	99.3	99.3	100	100	100	100	100
	(%)	82.1	82.1	82.1	100	100	100	100	100
	Me ± SD (ms)
This work versus	Se (%)	99.1	99.1	99.07	100	100	100	100	100
	(%)	86.65	87.06	87.27	99.8	100	99.6	99	100
	Me ± SD (ms)
Me ± SD ( versus ) (ms)
Overall	Se (%)	99.2			100			100
Performance	(%)	83.9			99.9			99.8