Publication detail

A Wavelet-Based ECG Delineation Method: Adaptation to an Experimental Electrograms with Manifested Global Ischemia

HEJČ, J. VÍTEK, M. RONZHINA, M. NOVÁKOVÁ, M. KOLÁŘOVÁ, J.

Original Title

A Wavelet-Based ECG Delineation Method: Adaptation to an Experimental Electrograms with Manifested Global Ischemia

Type

journal article in Web of Science

Language

English

Original Abstract

We present a novel wavelet-based ECG delineation method with robust classification of P wave and T wave. The work is aimed on an adaptation of the method to long-term experimental electrograms (EGs) measured on isolated rabbit heart and to evaluate the effect of global ischemia in experimental EGs on delineation performance. The algorithm was tested on a set of 263 rabbit EGs with established reference points and on human signals using standard Common Standards for Quantitative Electrocardiography Standard Database (CSEDB). On CSEDB, standard deviation (SD) of measured errors satisfies given criterions in each point and the results are comparable to other published works. In rabbit signals, our QRS detector reached sensitivity of 99.87% and positive predictivity of 99.89% despite an overlay of spectral components of QRS complex, P wave and power line noise. The algorithm shows great performance in suppressing J-point elevation and reached low overall error in both, QRS onset (SD = 2.8 ms) and QRS offset (SD = 4.3 ms) delineation. T wave offset is detected with acceptable error (SD = 12.9 ms) and sensitivity nearly 99%. Variance of the errors during global ischemia remains relatively stable, however more failures in detection of T wave and P wave occur. Due to differences in spectral and timing characteristics parameters of rabbit based algorithm have to be highly adaptable and set more precisely than in human ECG signals to reach acceptable performance.

Keywords

ECG delineation, QRS detection, wavelet transform, isolated rabbit heart, ischemia, experimental measurument

Authors

HEJČ, J.; VÍTEK, M.; RONZHINA, M.; NOVÁKOVÁ, M.; KOLÁŘOVÁ, J.

RIV year

2015

Released

8. 9. 2015

Publisher

Springer US

ISBN

1869-408X

Periodical

Cardiovascular Engineering and Technology

Year of study

2015

Number

6

State

United States of America

Pages from

364

Pages to

375

Pages count

12

URL

http://link.springer.com/article/10.1007/s13239-015-0224-z

BibTex

@article{BUT114151,
  author="Jakub {Hejč} and Martin {Vítek} and Marina {Filipenská} and Marie {Nováková} and Jana {Kolářová}",
  title="A Wavelet-Based ECG Delineation Method: Adaptation to an Experimental Electrograms with Manifested Global Ischemia",
  journal="Cardiovascular Engineering and Technology",
  year="2015",
  volume="2015",
  number="6",
  pages="364--375",
  doi="10.1007/s13239-015-0224-z",
  issn="1869-408X",
  url="http://link.springer.com/article/10.1007/s13239-015-0224-z"
}