Wavelet variance analysis of high-resolution ECG in patients prone to VT/VF during cardiac electrophysiology studies

A. Kapela, R. D. Berger, A. Achim, A. Bezerianos

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

This study evaluates influence of increased heart rate on beat-to-beat variability of vector magnitude depolarisation signal in patients admitted for cardiac electrophysiology studies. Electrical variability is quantitatively assessed during normal sinus rhythm and during atrial pacing by means of the Morlet wavelet transform variance in high-frequency region of 100Hz to 250Hz. Results suggest that pacing increases the electrical variability of QRS- complex more in patients with inducible ventricular tachyarrhythmia than in non-inducible ones. Instead of provoking arrhythmias by more intense stimulation to evaluate risk of VT/VF, more natural perturbation of the system by increasing heart rate and measuring the described parameter may be useful.

Original languageEnglish (US)
Title of host publication2002 14th International Conference on Digital Signal Processing Proceedings, DSP 2002
EditorsA.N. Skodras, A.G. Constantinides
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages1133-1136
Number of pages4
ISBN (Electronic)0780375033
DOIs
StatePublished - Jan 1 2002
Event14th International Conference on Digital Signal Processing, DSP 2002 - Santorini, Hellas, Greece
Duration: Jul 1 2002Jul 3 2002

Publication series

NameInternational Conference on Digital Signal Processing, DSP
Volume2

Other

Other14th International Conference on Digital Signal Processing, DSP 2002
CountryGreece
CitySantorini, Hellas
Period7/1/027/3/02

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Keywords

  • Beat-to-beat variability
  • Electrophysiological studies
  • High-resolution ECG
  • VT/VF risk
  • Wavelet transform

ASJC Scopus subject areas

  • Signal Processing

Cite this

Kapela, A., Berger, R. D., Achim, A., & Bezerianos, A. (2002). Wavelet variance analysis of high-resolution ECG in patients prone to VT/VF during cardiac electrophysiology studies. In A. N. Skodras, & A. G. Constantinides (Eds.), 2002 14th International Conference on Digital Signal Processing Proceedings, DSP 2002 (pp. 1133-1136). [1028292] (International Conference on Digital Signal Processing, DSP; Vol. 2). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/ICDSP.2002.1028292