Physics – Medical Physics
Scientific paper
1998-04-24
Fractals, Vol. 6 No. 3 (1998) 197-203
Physics
Medical Physics
5 latex pages (including 6 figures). Accepted in Fractals
Scientific paper
We demonstrate that it is possible to distinguish with a complete certainty between healthy subjects and patients with various dysfunctions of the cardiac nervous system by way of multiresolutional wavelet transform of RR intervals. We repeated the study of Thurner et al on different ensemble of subjects. We show that reconstructed series using a filter which discards wavelet coefficients related with higher scales enables one to classify individuals for which the method otherwise is inconclusive. We suggest a delimiting diagnostic value of the standard deviation of the filtered, reconstructed RR interval time series in the range of $\sim 0.035$ (for the above mentioned filter), below which individuals are at risk.
Ashkenazy Yosef
Bloch Thomsen P. E.
Levitan Jacob
Lewkowicz Meir
Moelgaard H.
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