Discriminating at-risk post-MI patients by fractal dimension analysis of the late potential attractor

RH Mitchell, OJ Escalona

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

Abstract

A novel and reliable approach which quantifies the degree of complexity of Late Potential(LP) activity in the: time domain is presented. By defining the LP Attractor in the microvoltage. 3-dimensional space, and then computing the Fractal Dimension (delta) of the Attractor's trajectory, the degree of complexity of LP can be quantified with a single parameter. delta may indicate the chaotic behaviour of the terminal activity of the ventricular depolarisation process. The Fractal Dimension of the LP Attractor in post-h II subjects that are at risk is significantly higher than in post-M1 subjects with low LP activity(p<0.001). delta may be considered as the criterion for discrimination. Fractal Dimension analysis on LP is a novel diagnostic approach aimed at quantifying their complexity in the microvoltage 3-D space, and may be interpreted as a measure of their chaotic behaviour triggering a catastrophic arrhythmic episode.
Original languageEnglish
Title of host publicationUnknown Host Publication
EditorsHK Chang, HK and Zhang, YT, YT Zhang
PublisherIEEE
Pages1573-1575
Number of pages3
Volume20
ISBN (Print)0-7803-5164-9
DOIs
Publication statusPublished - 15 Nov 1998
Event20TH ANNUAL INTERNATIONAL CONFERENCE OF THE IEEE ENGINEERING IN MEDICINE AND BIOLOGY SOCIETY - Hong Kong
Duration: 15 Nov 1998 → …

Publication series

NamePROCEEDINGS OF ANNUAL INTERNATIONAL CONFERENCE OF THE IEEE ENGINEERING IN MEDICINE AND BIOLOGY SOCIETY
PublisherIEEE
ISSN (Electronic)1094-687X

Conference

Conference20TH ANNUAL INTERNATIONAL CONFERENCE OF THE IEEE ENGINEERING IN MEDICINE AND BIOLOGY SOCIETY
Period15/11/98 → …

Keywords

  • Chaos
  • late potentials
  • fractal dimension analysis
  • high-resolution ECG.

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    Mitchell, RH., & Escalona, OJ. (1998). Discriminating at-risk post-MI patients by fractal dimension analysis of the late potential attractor. In HK. Chang, HK and Zhang, YT, & YT. Zhang (Eds.), Unknown Host Publication (Vol. 20, pp. 1573-1575). (PROCEEDINGS OF ANNUAL INTERNATIONAL CONFERENCE OF THE IEEE ENGINEERING IN MEDICINE AND BIOLOGY SOCIETY). IEEE. https://doi.org/10.1109/IEMBS.1998.747193