Analysis of the relation between complexity and multifractality in cardiac interbeat intervals time series

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

4 Scopus citations

Abstract

Multifractal spectrum has been used as indicative of complexity of time series, the broader the spectrum, the richer and more complex is the structure with a higher degree of multifractality. There is a loss of multifractality of physiological time series when the subject to which these time series belong is not healthy. So time series from subjects with a pathological condition show a clear loss of complexity. In this work we discuss how to characterize the complexity of time series by using the degree of multifractality, in particular, heartbeat interval time series. We observe a loss of multifractality in patients with congestive heart failure, mainly in the sleep phase; we try to explain this loss of multifractality as a loss of complexity produced by the appearance of periodicities in heartbeat interval time series. These periodicities were detected by using the Higuchi's fractal dimension method.

Original languageEnglish
Title of host publicationWorld Congress on Medical Physics and Biomedical Engineering
Subtitle of host publicationImage Processing, Biosignal Processing, Modelling and Simulation, Biomechanics
PublisherSpringer Verlag
Pages1506-1509
Number of pages4
Edition4
ISBN (Print)9783642038815
DOIs
StatePublished - 2009
EventWorld Congress on Medical Physics and Biomedical Engineering: Image Processing, Biosignal Processing, Modelling and Simulation, Biomechanics - Munich, Germany
Duration: 7 Sep 200912 Sep 2009

Publication series

NameIFMBE Proceedings
Number4
Volume25
ISSN (Print)1680-0737

Conference

ConferenceWorld Congress on Medical Physics and Biomedical Engineering: Image Processing, Biosignal Processing, Modelling and Simulation, Biomechanics
Country/TerritoryGermany
CityMunich
Period7/09/0912/09/09

Keywords

  • DFA
  • Fractal dimension
  • HRV
  • Multifactality

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