Enhanced real-time ECG coder for packetized telecardiology applications

Author

Alesanco, Álvaro ; Olmos, Salvador ; Istepanian, Robert S H ; García, José

Author_Institution

Commun. Technol. Group, Univ. of Zaragoza

Volume

10

Issue

2

fYear

2006

fDate

4/1/2006 12:00:00 AM

Firstpage

229

Lastpage

236

Abstract

A new real-time compression method for electrocardiogram (ECG) signals has been developed based on the wavelet transform approach. The method is specifically adaptable for packetized telecardiology applications. The signal is segmented into beats and a beat template is subtracted from them, producing a residual signal. Beat templates and residual signals are coded with a wavelet expansion. Compression is achieved by selecting a subset of wavelet coefficients. The number of selected coefficients depends on a threshold which has different definitions depending on the operational mode of the coder. Compression performance has been tested using a subset of ECG records from MIT-BIH Arrhythmia database. This method has been designed for real-time packetized telecardiology scenarios both in wired and wireless environments

Keywords

data compression; diseases; electrocardiography; encoding; medical signal processing; telemedicine; wavelet transforms; MIT-BIH arrhythmia database; electrocardiogram; packetized telecardiology applications; real-time ECG coder; real-time compression method; residual signals; wavelet transform; wired environment; wireless environment; Bandwidth; Cardiology; Electrocardiography; Hospitals; Real time systems; Senior members; TCPIP; Wavelet coefficients; Wavelet transforms; Wireless networks; Compression; electrocardiogram (ECG) coder; electrocardiogram (ECG) transmission; telecardiology;

fLanguage

English

Journal_Title

Information Technology in Biomedicine, IEEE Transactions on

Publisher

ieee

ISSN

1089-7771

Type

jour

DOI

10.1109/TITB.2005.856853

Filename

1613948