Consiglio Nazionale delle Ricerche

Tipo di prodottoArticolo in rivista
TitoloComputationally inexpensive methods for intra-cardiac atrial bipolar electrogram compression
Anno di pubblicazione2002
Autore/iPaolo Rossi; Aldo Casaleggio; Michela Chiappalone; Mauro Morando; Giorgio Corbucci; Maurizio Reggiani; Giuseppe Sartori; Sergio Chierchia
Affiliazioni autoriDivision of Cardiology, San Martino Hospital, Largo Rosanna Benzi 10, 16132 Genoa, Italy; Institute of Electronic Circuits, National Research Council, Via De Marini 6, 16149, Genoa, Italy; Vitatron Medical Italia, Via Dell'Arcoveggio 49/5, 40129, Bologna, Italy
Autori CNR e affiliazioni
  • inglese
AbstractAim This paper reports studies of mathematical algorithms for intra-cardiac atrial bipolar electrogram compression suitable with implementation on implantable devices. Patients and Methods Bipolar intra-cardiac electrograms (IEGMs) of high right atrium were obtained from 20 patients who underwent electrophysiological studies for arrhythmias. Four thousand seven hundred and eighty-two seconds of IEGM were collected and divided into three rhythm groups: sinus rhythm (SR), atrial fibrillation (AF) and atrial flutter (AFL). Since mathematical algorithms suitable for use with implantable devices demand low computational cost, we employed piecemeal linear approximation methods (ZOP -- Zero Order Prediction and SAPA -- Scan Along Polygonal Approximation), and beat detection method (Peak) both or which need small numbers of operations to perform electrogram compression. Compression ratio (CR) and percent root mean square di ff erence (PRD) were used to compare the three methods, with statistical analyses performed using paired t-test. Results and Conclusion The best performance was obtained using the Peak method which reaches an average CR of 10·6 in the case of SR group, 2·8 for AF, and 3·6 for AFL groups, respectively, while PRD lies below 2% for SR and AFL groups and 6% for the AF group. Results show that, for bipolar electrograms, the Peak method reaches statistically significant better performance (P<0·001) in all cases except for Peak vs SAPA applied to AF (P=0·2). The number of operations necessary to compress the data indicate that time consumption can be reduced to be suitable for real time compression in implantable devices. The Peak method, which was assumed to receive the instant of occurrence of each recognized beat, from the hardware of the device, requires fewer operations than ZOP and SAPA. Increasing the length of electrograms recorded in pacemakers will enhance the amount of information provided by the implantable device, allowing more detailed characterization of the intra-cardiac activity and reading to new perspectives in arrhythmia diagnosis and therapy. (Europace 2002; 4: 295-302)
Lingua abstractinglese
Altro abstract-
Lingua altro abstract-
Pagine da295
Pagine a302
Pagine totali-
RivistaEuropace (Lond. Engl.)
Attiva dal 1999
Editore: W.B. Saunders, - Philadelphia
Paese di pubblicazione: Regno Unito
Lingua: inglese
ISSN: 1099-5129
Titolo chiave: Europace (Lond. Engl.)
Titolo proprio: Europace (Lond. Engl.)
Titolo abbreviato: Europace (Lond. Engl.)
Titoli alternativi:
  • European pacing, arrhythmias, and cardiac electrophysiology (Lond. Engl.)
  • Epace (Lond. Engl.)
Numero volume della rivista4
Fascicolo della rivista-
Verificato da refereeSì: Internazionale
Stato della pubblicazione-
Indicizzazione (in banche dati controllate)
  • ISI Web of Science (WOS) (Codice:10.1053/eupc.2002.0249)
Parole chiaveIntra-cardiac bipolar electrograms, data compression, pacemakers, mathematical algorithms.
Link (URL, URI)
Titolo parallelo-
Data di accettazione-
Note/Altre informazioni-
Strutture CNR
  • IBF — Istituto di biofisica
  • IEIIT — Istituto di elettronica e di ingegneria dell'informazione e delle telecomunicazioni
Moduli CNR
    Progetti Europei-
    • Casaleggio_2002_EP

    Dati storici
    I dati storici non sono modificabili, sono stati ereditati da altri sistemi (es. Gestione Istituti, PUMA, ...) e hanno solo valore storico.
    Rivista ISIEUROPACE [13221J0]