A system identication approach to baroreflex sensitivity estimation

McLoone, Violeta I. and Ringwood, John (2012) A system identication approach to baroreflex sensitivity estimation. In: ISSC 2012, 28-29 June, 2012, NUI Maynooth.

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The body contains a bewildering array of regulatory systems which maintain homeostasis. There is considerable dificulty in isolating a single control loop for analysis, due to the interactions with other systems/loops. One important such regulatory loop is the baroreflex, and baroreflex sensitivity is a characteristic open-loop parameter which can help us to assess the health of the baroreflex. A diverse range of methods have been proposed to determine baroreflex sensitivity from experimental data. Unfortunately, there appears to be little consistency of result among the different methods and some explanation can be found in the nature of the problem: In most cases, an attempt is being made to determine open-loop measures from a system operating in closed-loop, subject to poor excitation. In this paper we propose a strict procedure, based on a rigourous mathematical framework, from which reliable estimates of baroreflex sensitivity can be obtained. A comparison with other methods for baroreflex sensitivity estimation, using the EuroBaVar data set, is performed.

Item Type: Conference or Workshop Item (Paper)
Keywords: Baroreflex sensitivity; system identifcation;
Academic Unit: Faculty of Science and Engineering > Electronic Engineering
Item ID: 3863
Depositing User: Professor John Ringwood
Date Deposited: 17 Sep 2012 10:56
Refereed: Yes

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