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

Mitchell, RH and Escalona, OJ (1998) Discriminating at-risk post-MI patients by fractal dimension analysis of the late potential attractor. In: 20TH ANNUAL INTERNATIONAL CONFERENCE OF THE IEEE ENGINEERING IN MEDICINE AND BIOLOGY SOCIETY, Hong Kong. IEEE. Vol 20 (3) 3 pp. [Conference contribution]

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URL: http://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=747193

DOI: 10.1109/IEMBS.1998.747193


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.

Item Type:Conference contribution (Paper)
Keywords:Chaos; late potentials; fractal dimension analysis, late potentials, high-resolution ECG.
Faculties and Schools:Faculty of Computing & Engineering
Faculty of Computing & Engineering > School of Engineering
Research Institutes and Groups:Engineering Research Institute
Engineering Research Institute > Nanotechnology & Integrated BioEngineering Centre (NIBEC)
ID Code:6018
Deposited By: Professor Omar Escalona
Deposited On:08 Feb 2016 14:14
Last Modified:08 Feb 2016 14:14

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