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Multifractality in arterial pulse

DSpace at IIT Bombay

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Title Multifractality in arterial pulse
 
Creator JOSHI, AJ
CHANDRAN, S
JAYARAMAN, VK
KULKARNI, BD
 
Subject heartbeat dynamics
fractals
wavelets
 
Description 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.
 
Publisher IEEE
 
Date 2011-10-27T18:58:06Z
2011-12-15T09:12:46Z
2011-10-27T18:58:06Z
2011-12-15T09:12:46Z
2008
 
Type Proceedings Paper
 
Identifier 19TH INTERNATIONAL CONFERENCE ON PATTERN RECOGNITION, VOLS 1-6,575-578
978-1-4244-2174-9
1051-4651
http://dspace.library.iitb.ac.in/xmlui/handle/10054/16391
http://hdl.handle.net/100/2887
 
Source 19th International Conference on Pattern Recognition (ICPR 2008),Tampa, FL,DEC 08-11, 2008
 
Language English