TY - GEN
T1 - Fractal dimension analysis for the detection of ventricular late potentials in the time domain
AU - Escalona, OJ
AU - Mitchel, RH
PY - 1993/12/15
Y1 - 1993/12/15
N2 - The presence of ventricular late potential (LP) activity in patients with post-myocardial infarction has been correlated with their susceptibility to develop ventricular tachycardia and may be used as a risk criterion. A reliable novel approach for characterising and detecting abnormal LP activity is presented. It consists of analyzing the degree of complexity of LP activity by quantifying their fractal dimension (δ). Fractal dimensional analysis was applied to the LP's attractor traced in the microvoltage, 3-dimensional space. The δ parameter may be interpreted as an index for the chaotic behaviour of the terminal activity of the ventricular depolarisation process which could trigger a catastrophic arrhythmic episode. Results of a clinical study indicated that the value of δ was significantly higher in at risk patients than in healthy subjects (p1.30 can be a risk criterion.
AB - The presence of ventricular late potential (LP) activity in patients with post-myocardial infarction has been correlated with their susceptibility to develop ventricular tachycardia and may be used as a risk criterion. A reliable novel approach for characterising and detecting abnormal LP activity is presented. It consists of analyzing the degree of complexity of LP activity by quantifying their fractal dimension (δ). Fractal dimensional analysis was applied to the LP's attractor traced in the microvoltage, 3-dimensional space. The δ parameter may be interpreted as an index for the chaotic behaviour of the terminal activity of the ventricular depolarisation process which could trigger a catastrophic arrhythmic episode. Results of a clinical study indicated that the value of δ was significantly higher in at risk patients than in healthy subjects (p1.30 can be a risk criterion.
KW - fractals
KW - medical signal processing
KW - 3-dimensional space
KW - ECG
KW - abnormal LP activity
KW - catastrophic arrhythmic episode
KW - chaotic behaviour
KW - complexity
KW - fractal dimension analysis
KW - microvoltage
KW - post-myocardial infarction
KW - reliable novel approach
KW - risk criterion
KW - time domain
KW - ventricular depolarisation process
KW - ventricular late potential detection
KW - ventricular tachycardia
KW - Bioelectric potentials
KW - Cardiology
KW - Cardiovascular system
KW - Chaos theory
KW - Correlation methods
KW - Electrocardiography
KW - Fractals
KW - Three dimensional
KW - Time domain analysis
KW - Degree of complexity
KW - Fractal dimension analysis
KW - Post myocardial infarction
KW - Ventricular depolarisation process
KW - Ventricular late potentials
KW - Ventricular tachycardia.
UR - http://ieeexplore.ieee.org/xpl/articleDetails.jsp?tp=&arnumber=378417&sortType%3Dasc_p_Publication_Year%26queryText%3Descalona%2C+o
UR - http://ieeexplore.ieee.org/xpl/articleDetails.jsp?tp=&arnumber=378417&sortType%3Dasc_p_Publication_Year%26queryText%3Descalona%2C+o
U2 - 10.1109/CIC.1993.378417
DO - 10.1109/CIC.1993.378417
M3 - Conference contribution
SN - 0-8186-5470-8
VL - 20
T3 - COMPUTERS IN CARDIOLOGY
SP - 409
EP - 412
BT - Unknown Host Publication
PB - IEEE Computer Society
CY - 10662 LOS VAQUEROS CIRCLE, LOS ALAMITOS, CA 90720
T2 - 20th Annual Meeting of Computers in Cardiology 1993, London
Y2 - 15 December 1993
ER -