Title :
Measurement of the complexity of the heart beat intervals
Author :
Bieberle, T. ; Lesch, R. ; Grassl, B. ; Pauli, J. ; Ströbel, J.P. ; Bolz, A. ; Schaldach, M.
Author_Institution :
Dept. of Biomed. Eng., Erlangen-Nurnberg Univ., Germany
fDate :
31 Oct-3 Nov 1996
Abstract :
The complexity of the heart beat intervals of 7 patients with arrhythmia absoluta and 11 healthy control subjects was investigated using the box dimension DB and the correlation dimension D c. Using a 2D embedding space, the box dimension assumed values greater than 1.40 (mean: 1.53±0.010) in all arrhythmic patients whereas in all control subjects DB was less than 1.31 (mean: 1.13±0.012). Dc was computed in a 10D embedding space. The mean value of Dc was 7.26±1.69 in the arrhythmia group and 5.70±1.51 in the control group. Although this difference of the means is significant with 2.01·10-12 , a separation between arrhythmic and healthy persons was not possible
Keywords :
biomedical measurement; electrocardiography; medical signal processing; 2D embedding space; arrhythmia absoluta patients; box dimension; correlation dimension; electrodiagnostics; healthy control subjects; heart beat intervals complexity measurement; Atrial fibrillation; Biomedical engineering; Biomedical measurements; Cardiology; Delay effects; Delay estimation; Electrocardiography; Embedded computing; Heart beat; Information analysis;
Conference_Titel :
Engineering in Medicine and Biology Society, 1996. Bridging Disciplines for Biomedicine. Proceedings of the 18th Annual International Conference of the IEEE
Conference_Location :
Amsterdam
Print_ISBN :
0-7803-3811-1
DOI :
10.1109/IEMBS.1996.647581
