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Please use this identifier to cite or link to this item: http://dspace.library.iitb.ac.in/jspui/handle/100/2887

Title: Multifractality in arterial pulse
Authors: JOSHI, AJ
CHANDRAN, S
JAYARAMAN, VK
KULKARNI, BD
Keywords: heartbeat dynamics
fractals
wavelets
Issue Date: 2008
Publisher: IEEE
Citation: 19TH INTERNATIONAL CONFERENCE ON PATTERN RECOGNITION, VOLS 1-6,575-578
Abstract: Extensive research has been done to show that heartbeats are composed of the interaction of many physiological components operating on different time scales, with nonlinear and self-regulating nature. The more direct, and easily accessible manifestation of the heartbeat is the pulse; however, it has not been studied anywhere near as extensively. In this paper we establish the relevance of the multifractal formalism for the arterial pulse, which has long been used as a fundamental tool for diagnosis in the Traditional Indian Medicine, (Ayurveda). The finding of power-law correlations through detrended fluctuation analysis indicates presence of scale-invariant, fractal structures in the pulse. These fractal structures are then further established by self-affine cascades of beat-to-beat fluctuations revealed by wavelet decomposition at different time scales. Finally, we investigate how these pulse dynamics change with age, and disorder, The analytic tools we discuss may be used on a wide range of physiological signals.
URI: http://dspace.library.iitb.ac.in/xmlui/handle/10054/16391
http://hdl.handle.net/100/2887
ISBN: 978-1-4244-2174-9
ISSN: 1051-4651
Appears in Collections:Proceedings papers

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