A new method for reduction of muscular respiratory noise in signal-averaging based on the spectral analysis of the heart beat

Author

Barbosa, Prb ; Barbosa-Filho, J. ; De-Sa, CAM ; Nadal, J.

Author_Institution

COPPE, Univ. Fed. do Rio de Janeiro, Brazil

fYear

1999

fDate

6/21/1905 12:00:00 AM

Firstpage

323

Lastpage

326

Abstract

The analysis of the ventricular late potentials has been considered a valuable diagnostic tool for stratification of patients at risk of life threatening arrhythmia. This study proposes a new technique for averaging and analysis of conventional orthogonal bipolar-three lead surface EGG, based on the weighted coherent averaging of heart beats using the EMG region energy of the power spectrum. The results of the ECG of fourteen patients bearing Chagas´ Disease, Ischemic Heart Disease and HIV infection are similar to those obtained by a commercial system with the advantage of achieving a lower level of the final noise with the same number of signals

Keywords

diseases; electrocardiography; electromyography; medical signal processing; noise; pneumodynamics; spectral analysis; Chagas Disease; EMG region energy; HIV infection; Ischemic Heart Disease; conventional orthogonal bipolar-three lead surface EGG; diagnostic tool; heart beat; life threatening arrhythmia; muscular respiratory noise; noise; patient stratification; power spectrum; signal-averaging; spectral analysis; ventricular late potentials; weighted coherent averaging; Cardiac disease; Cardiovascular diseases; Electrocardiography; Electromyography; Heart beat; Hospitals; Human immunodeficiency virus; Noise level; Noise reduction; Signal to noise ratio;

fLanguage

English

Publisher

ieee

Conference_Titel

Computers in Cardiology, 1999

Conference_Location

Hannover

ISSN

0276-6547

Print_ISBN

0-7803-5614-4

Type

conf

DOI

10.1109/CIC.1999.825972

Filename

825972