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.
|Title of host publication||Unknown Host Publication|
|Editors||HK Chang, HK and Zhang, YT, YT Zhang|
|Number of pages||3|
|Publication status||Published - 15 Nov 1998|
|Event||20TH ANNUAL INTERNATIONAL CONFERENCE OF THE IEEE ENGINEERING IN MEDICINE AND BIOLOGY SOCIETY - Hong Kong|
Duration: 15 Nov 1998 → …
|Name||PROCEEDINGS OF ANNUAL INTERNATIONAL CONFERENCE OF THE IEEE ENGINEERING IN MEDICINE AND BIOLOGY SOCIETY|
|Conference||20TH ANNUAL INTERNATIONAL CONFERENCE OF THE IEEE ENGINEERING IN MEDICINE AND BIOLOGY SOCIETY|
|Period||15/11/98 → …|
- late potentials
- fractal dimension analysis
- high-resolution ECG.
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