Low complexity methods for intracardiac atrial electrogram compression

Author

Rossi, P. ; Casaleggio, A. ; Chiappalone, M. ; Morando, M. ; Corbucci, G. ; Reggiani, M. ; Sartori, G. ; Borgo, E.

Author_Institution

Cardiologia 1, San Martino Hosp., Genoa, Italy

fYear

2000

fDate

2000

Firstpage

565

Lastpage

568

Abstract

This paper studies methods for intracardiac atrial electrograms compression suitable with implementation on implantable devices. Algorithms are based an piecewise linear approximation, beat detection, and their combination. Bipolar intracardiac electrograms were obtained during electrophysiological studies and divided into 3 rhythm groups. The authors analyzed 2196 seconds of sinus rhythm (SR), 786 sec. of atrial fibrillation (AF) and 1793 sec. of atrial flutter (AFL). Performance over the whole data base reach average compressed data rate (CDR) ranging between 500 and 850 (bits/second), and the percent of root mean square difference (PRD) varies from 2 to 12% depending on the choice of methods and accepted errors. Preliminary results show that time consumption can be reduced to enable real time compression with implanted devices

Keywords

data compression; electrocardiography; medical signal processing; 1793 s; 2196 s; 786 s; atrial fibrillation; atrial flutter; electrodiagnostics; electrophysiological studies; implantable devices; intracardiac atrial electrogram compression; low complexity methods; real time compression; rhythm groups; root mean square difference; sinus rhythm; Approximation algorithms; Cardiology; Frequency; Hospitals; Logic devices; Pacemakers; Piecewise linear approximation; Rhythm; Sampling methods; Strontium;

fLanguage

English

Publisher

ieee

Conference_Titel

Computers in Cardiology 2000

Conference_Location

Cambridge, MA

ISSN

0276-6547

Print_ISBN

0-7803-6557-7

Type

conf

DOI

10.1109/CIC.2000.898584

Filename

898584