Modeling abnormal signals within the QRS complex of the high resolution ECG

Paul Lander, Pedro Gomis, Raimon Jane, Douglas L. Jones, Pere Caminal

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

Abstract

Late potentials, low-level signals that outlast the normal QRS, are an index of VT risk. However, the reentry substrate for VT with which late potentials are associated may be active only within the normal QRS period. This paper introduces 2 linear modeling techniques for extracting intra-QRS late potentials. These are given a signal processing definition as the residual of an autoregressive model of the smooth, regular form of the QRS. They are a high resolution version of notches and slurs, QRS features associated with myocardial scarring. Intra-QRS late potentials were measured in a select group of patients assessed for VT. Preliminary results suggest they may have value as an index of VT risk.

Original languageEnglish (US)
Title of host publicationComputers in Cardiology
PublisherPubl by IEEE
Pages435-437
Number of pages3
ISBN (Print)0818654708
StatePublished - Dec 1 1993
Externally publishedYes
EventProceedings of the 1993 Conference on Computers in Cardiology - London, UK
Duration: Sep 5 1993Sep 8 1993

Publication series

NameComputers in Cardiology
ISSN (Print)0276-6574

Other

OtherProceedings of the 1993 Conference on Computers in Cardiology
CityLondon, UK
Period9/5/939/8/93

ASJC Scopus subject areas

  • Computer Science Applications
  • Cardiology and Cardiovascular Medicine

Fingerprint Dive into the research topics of 'Modeling abnormal signals within the QRS complex of the high resolution ECG'. Together they form a unique fingerprint.

Cite this