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Mathematical modeling and parameter estimation of blood pressure oscillometric waveform.

Authors :
Forouzanfar, Mohamad
Balasingam, Balakumar
Dajani, Hilmi R.
Groza, Voicu Z.
Bolic, Miodrag
Rajan, Sreeraman
Petriu, Emil M.
Source :
2012 IEEE International Symposium on Medical Measurements & Applications Proceedings; 1/ 1/2012, p1-6, 6p
Publication Year :
2012

Abstract

In this paper, a mathematical model for the blood pressure oscillometric waveform (OMW) is developed and a statespace approach using the extended Kalman filter (EKF) is proposed to adaptively estimate and track parameters of clinical interest. The OMW model is driven by a previously proposed pressure-lumen area model of the artery under the deflating cuff. The arterial lumen area is a function of vessel properties, the cuff pressure, and the arterial pressure. Over the deflation period, the arterial pressure causes lumen area oscillations while the deflating cuff pressure adds a slow-varying component to these oscillations. In the previous literature, it has been demonstrated that the oscillometric pulses are proportional to the arterial area oscillations. In this paper, the OMW is modeled as the difference between the whole lumen area model and the slow-varying component of the lumen area caused by the deflating cuff pressure. The OMW model is then represented in the statespace and the extended Kalman filter (EKF) is incorporated to estimate and track the time-varying model parameters during the cuff deflation period. The parameter tracking performance of the EKF is evaluated on a simulated noisy OMW. [ABSTRACT FROM PUBLISHER]

Details

Language :
English
ISBNs :
9781467308809
Database :
Complementary Index
Journal :
2012 IEEE International Symposium on Medical Measurements & Applications Proceedings
Publication Type :
Conference
Accession number :
86567916
Full Text :
https://doi.org/10.1109/MeMeA.2012.6226639