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Local Hölder Regularity-Based Modeling of RR Intervals

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2 Author(s)
Vehel, J.L. ; Projet APIS INRIA Saclay - Ile-de-France, Pare Orsay Univ., Orsay ; Barriere, O.

We analyze the local regularity of RR traces from ECG through the computation of the so-called Holder exponents. These exponents are at the basis of multifractal analysis, which has been shown to be relevant in the study of RR data. While multifractal analysis yields a global picture of the (statistical) distribution of regularity, we focus here on its time evolution. We show that this evolution is strongly correlated with the signal itself, a feature that seems to have remained unnoticed so far. We use this fact to build realistic synthetic RR traces.

Published in:

Computer-Based Medical Systems, 2008. CBMS '08. 21st IEEE International Symposium on

Date of Conference:

17-19 June 2008