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 (δ) of the attractor's trajectory, the degree of complexity of LP can be quantified with a single parameter. δ may indicate the chaotic behaviour of the terminal activity of the ventricular depolarisation process. The fractal dimension of the LP Attractor in post-MI subjects that are at risk is significantly higher than in post-MI subjects with low LP activity (p
Original language | English |
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Title of host publication | Unknown Host Publication |
Publisher | IEEE |
Pages | 1573-1575 |
Number of pages | 3 |
Volume | 20 |
ISBN (Print) | 0-7803-5164-9 |
DOIs | |
Publication status | Published (in print/issue) - 15 Nov 1988 |
Event | 20th Annual International Conference of the IEEE EMBS, EMBC-1998, Hong Kong - Hong Kong Duration: 15 Nov 1988 → … |
Conference
Conference | 20th Annual International Conference of the IEEE EMBS, EMBC-1998, Hong Kong |
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Period | 15/11/88 → … |
Keywords
- At-risk post-MI patients discrimination
- catastrophic arrhythmic episode
- degree of complexity
- deterministic chaos
- fractal dimension analysis
- bi- directional high-pass filtering
- late potential activity
- late potential attractor
- microvoltage 3D space
- myocardial infarct
- phase space
- single parameter
- QRS terminal activity
- time domain
- ventricular depolarisation process
- chaos
- electrocardiography
- filtering theory
- fractals
- medical signal detection
- medical signal processing
- phase space methods
- ECG.