Title :
Improving signal preprocessing for late potential detection
Author :
Pinna, G. ; Orsi, G. ; Mingon, M. ; Tangenti, A. ; Traversi, E.
Author_Institution :
Centro Medico di Riabilitazione di Montescano, Italy
Abstract :
An approach to overcoming problems involved in the averaging of surface ECGs (electrocardiograms) for the detection of late potentials is presented. The mean-square difference between the template beat and the new beat is proposed as the alignment function (AF), computed in an almost linear segment of late QRS. The main properties of the AF are examined by using some easily obtainable mathematical relationships. Experimental results are presented and a comparison with the cross-correlation method is made
Keywords :
bioelectric potentials; electrocardiography; signal processing; alignment function; cross-correlation method; late QRS; late potential detection; mathematical relationships; mean-square difference; signal preprocessing; template beat; Additive noise; Electrocardiography; Frequency; Jitter; Medical signal detection; Morphology; Noise level; Shape; Signal resolution; Signal to noise ratio;
Conference_Titel :
Computers in Cardiology 1989, Proceedings.
Conference_Location :
Jerusalem
Print_ISBN :
0-8186-2114-1
DOI :
10.1109/CIC.1989.130495
