Publication detail

Behavior of Intra-QRS Potentials during Induced Ischemia in Isolated Guinea Pig Hearts

SEKORA, J. NOVÁKOVÁ, M. PROVAZNÍK, I.

Original Title

Behavior of Intra-QRS Potentials during Induced Ischemia in Isolated Guinea Pig Hearts

Type

conference paper

Language

English

Original Abstract

Myocardial ischemia causes conduction changes that are often presented in electrocardiographic recording as intra-QRS changes. The present study analyses behavior of amplitude of intra-QRS potentials in the electrographic recording during myocardial ischemia - in its very early stages as well as during developed ischemia presented as ST elevation in ECG curve. The studied potentials are subtle low-amplitude short pulses found within QRS complexes as notches. Their analysis is performed using wavelet transform due to its suitable time-frequency properties. A characteristic pattern of intra-QRS potential behavior during ischemia is described in guinea pig isolated heart experiments.

Keywords

Intra-QRS, Potential, Ischemia, Heart

Authors

SEKORA, J.; NOVÁKOVÁ, M.; PROVAZNÍK, I.

RIV year

2010

Released

27. 6. 2010

Publisher

VUT v Brně

Location

Brno

ISBN

978-80-214-4106-4

Book

Analysis of Biomedical Signals and Images

Edition number

20

ISBN

1211-412X

Periodical

Analysis of Biomedical Signals and Images

Year of study

20

State

Czech Republic

Pages from

447

Pages to

450

Pages count

4

BibTex

@inproceedings{BUT30367,
  author="Jiří {Sekora} and Marie {Nováková} and Valentine {Provazník}",
  title="Behavior of Intra-QRS Potentials during Induced Ischemia in Isolated Guinea Pig Hearts",
  booktitle="Analysis of Biomedical Signals and Images",
  year="2010",
  journal="Analysis of Biomedical Signals and Images",
  volume="20",
  number="20",
  pages="447--450",
  publisher="VUT v Brně",
  address="Brno",
  isbn="978-80-214-4106-4",
  issn="1211-412X"
}