High resolution QRS alignment and late potentials analysis

Author

Bonato, P. ; Nollo, G. ; Speranza, G. ; Antolini, R.

Author_Institution

IRST Trento, Italy

fYear

1991

fDate

23-26 Sep 1991

Firstpage

409

Lastpage

412

Abstract

Late potentials (LP) analysis needs an improvement of the alignment procedure for the signal averaging and a knowledge of the noise effects on the clinical responses. To extract a better fiducial synchronizing mark, the authors propose the use of an optimal bandpass filter and high-resolution alignment techniques. The effects of the main sources of error either in the time or frequency domain of LP analysis were investigated on a database of 16 electrocardiogram recordings. Different sources and levels of noises were considered, and their influence on the two LP detection methods was studied

Keywords

bioelectric potentials; electrocardiography; waveform analysis; alignment procedure; clinical responses; error sources; fiducial synchronizing mark; frequency domain; high resolution QRS alignment; late potentials analysis; noise effects; optimal bandpass filter; signal averaging; time domain; Band pass filters; Coherence; Discrete Fourier transforms; Electrocardiography; Frequency domain analysis; Frequency synchronization; Low pass filters; Signal analysis; Signal resolution; Signal to noise ratio;

fLanguage

English

Publisher

ieee

Conference_Titel

Computers in Cardiology 1991, Proceedings.

Conference_Location

Venice

Print_ISBN

0-8186-2485-X

Type

conf

DOI

10.1109/CIC.1991.169130

Filename

169130