Effect of body characteristics on thoracic attenuation of intra-cardiac electrical activity recorded on the surface electrocardiogram

J. Ng, H. Subacius, D. Johnson, A. H. Kadish, J. J. Goldberger

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

Abstract

The objective of this study was to determine the effect of body characteristics on the electrical transfer function of the human thorax. Twenty patients undergoing electrophysiologic study were enrolled. Unipolar stimuli were applied in the right ventricular apical and posterioseptal areas. XYZ surface ECGs and unipolar intra-cardiac electrograms of the pacing impulses were recorded and signal-averaged. The intracardiac-to-surface transfer functions were modeled and compared with body characteristics. Physical dimensions, respiratory measures obtained by spirometry, and age correlated with magnitude intercepts and slopes of the modeled transfer functions in all three directions. The phase transfer functions were correlated with physical dimensions in the Y and Z directions. The effect of body characteristics on the frequency dependency of attenuation and phase has implications on the use of surface ECG and body surface mapping.

Original languageEnglish (US)
Title of host publicationComputers in Cardiology, 2005
Pages9-12
Number of pages4
DOIs
StatePublished - Dec 1 2005
Externally publishedYes
EventComputers in Cardiology, 2005 - Lyon, France
Duration: Sep 25 2005Sep 28 2005

Publication series

NameComputers in Cardiology
Volume32
ISSN (Print)0276-6574

Other

OtherComputers in Cardiology, 2005
CountryFrance
CityLyon
Period9/25/059/28/05

ASJC Scopus subject areas

  • Computer Science Applications
  • Cardiology and Cardiovascular Medicine

Fingerprint Dive into the research topics of 'Effect of body characteristics on thoracic attenuation of intra-cardiac electrical activity recorded on the surface electrocardiogram'. Together they form a unique fingerprint.

  • Cite this

    Ng, J., Subacius, H., Johnson, D., Kadish, A. H., & Goldberger, J. J. (2005). Effect of body characteristics on thoracic attenuation of intra-cardiac electrical activity recorded on the surface electrocardiogram. In Computers in Cardiology, 2005 (pp. 9-12). [1588019] (Computers in Cardiology; Vol. 32). https://doi.org/10.1109/CIC.2005.1588019