Title: Modelling the effects of upper arm cuff pressure on pulse morphology

Authors: L. Suganthi, S.V. Viswajith, M. Manivannan

Addresses: Biomedical Engineering Group, Department of Applied Mechanics, Indian Institute of Technology Madras, Chennai 600 036, India. ' Biomedical Engineering Group, Department of Applied Mechanics, Indian Institute of Technology Madras, Chennai 600 036, India. ' Biomedical Engineering Group, Department of Applied Mechanics, Indian Institute of Technology Madras, Chennai 600 036, India

Abstract: We propose a distributed model of entire human arterial tree to describe the haemodynamic changes due to pressure applied on the brachial artery. The model (without baroreflex) parameters are positively correlated with measured parameters (maximum systolic slope r = 0.54; maximum diastolic slope r = 0.77; pulse height r = 0.89 when P < 0.05). We calculated correlation coefficient of all parameters with baroreflex system (for maximum systolic slope r = 0.97; for maximum diastolic slope r = 0.93; for pulse height r = 0.99 when P < 0.05). With baroreflex loop in the model, the experimental parameters are accurately predicted.

Keywords: haemodynamics; Windkessel model; baroreflex; photoplethysmograph; transmission line model; maximum systolic slope; peak-to-peak interval; modelling; upper arm cuff pressure; pulse morphology; human arterial tree; brachial artery.

DOI: 10.1504/IJHTM.2011.042372

International Journal of Healthcare Technology and Management, 2011 Vol.12 No.5/6, pp.422 - 433

Published online: 28 Mar 2015 *

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