Abstract
As a model for RR-interval time series, a nonstationary linear Langevin equation is used. Approximating the time-dependent point of equilibrium by a piecewise constant function, an algorithm is presented to reconstruct the amplitudes of this trend. From these quantities a measure of activity is defined, which is shown to be an indicator of a deterioration of cardiac performance such as involved by congestive heart failure.
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© 2009 Springer-Verlag Berlin Heidelberg
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Kirchner, J., Meyer, W., Hensel, B. (2009). Non-stationary Langevin Equation in Cardiology. In: Dössel, O., Schlegel, W.C. (eds) World Congress on Medical Physics and Biomedical Engineering, September 7 - 12, 2009, Munich, Germany. IFMBE Proceedings, vol 25/4. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-03882-2_84
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DOI: https://doi.org/10.1007/978-3-642-03882-2_84
Publisher Name: Springer, Berlin, Heidelberg
Print ISBN: 978-3-642-03881-5
Online ISBN: 978-3-642-03882-2
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