Arrhythmia Compensation Of A Predictive Noninvasive Blood Pressure Algorithm

Bennett, Ronan; Taylor, L.A.

doi:10.1109/iembs.1991.684917

Cited by 3 publications

(1 citation statement)

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“…frequency-domain filtering methods or Kalman filter were generally applied to reject the motion artifact [3][4][5]. However, since the frequency bandwidth of motion artifact overlaps with the oscillometric signal, it is not easy to reject the effect of the motion artifact successfully.…”

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confidence: 99%

Preliminary Study of Motion Artifact Rejection for NIBP measurement in an Ambulance

Koo

Kang

Shin

et al. 2007

2007 29th Annual International Conference of the IEEE Engineering in Medicine and Biology Society

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Motion artifact resulting from patient's movement is a significant source for disturbing accurate noninvasive blood pressure (NIBP) measurement. In an ambulance, patients are exposed to unstable circumstances due to vehicle's movement and vibration during emergency transportation. Since NIBP is indirectly measured using oscillometry based on the change of cuff pressure, it can be affected by motion artifact much more than other biosignals. In this paper, we developed a new NIBP system with improved accuracy by measuring acceleration of the system caused by patient's motion. The NIBP module including a 3-axis accelerometer was directly mounted on a cuff to minimize the interference induced through connecting tube. The results show that the proposed NIBP system has the capability to reject the interference of motion artifact effectively in an ambulance.

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mentioning

confidence: 99%

Preliminary Study of Motion Artifact Rejection for NIBP measurement in an Ambulance

Koo

Kang

Shin

et al. 2007

2007 29th Annual International Conference of the IEEE Engineering in Medicine and Biology Society

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The application of signal averaging to the NIBP oscillometric waveform

Taylor¹,

Bennett²,

Dorsett³

Proceedings of 17th International Conference of the Engineering in Medicine and Biology Society

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This paper describes the application of Ensemble Signal Averaging (ESA) to the problem of motion artifact reduction in the oscillometric non-invasive blood pressure (NIBP) signal. The algorithm described addresses the problems of preserving the cuff pressure (CP) vs pulse size envelope shape, dealing with the case of a long pulse delay, using limited CPU resources, and optimizing the determination cycle time.

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Reduction of interference in oscillometric arterial blood pressure measurement using fuzzy logic

Lin

Liu

Wang

et al. 2003

IEEE Trans. Biomed. Eng.

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In oscillometry, oscillation amplitudes (OAs) embedded in the cuff pressure are drastically affected by a variety of artifacts and cardiovascular diseases, leading to inaccurate arterial blood pressure (ABP) measurement. The purpose of this paper is to improve the accuracy in the arterial pressure measurement by reducing interference in the OAs using a recursive weighted regression algorithm (RWRA). This method includes a fuzzy logic discriminator (FLD) and a recursive regression algorithm. The FLD is used to reduce the effect of artifacts caused by measurement motion disturbance or cardiovascular diseases, and to determine the truthfulness of the oscillation pulse. According to the truth degree, the relationship between the cuff pressure and OA is reconstructed using the regression algorithm. Because the regression method must utilize inverse matrix operation, which will be difficult to implement in an automatic or ambulatory monitor, the recursive regression method is proposed to solve this problem. To test the performance of this RWRA, 47 subjects underwent the ABP measurement using both the auscultation and the oscillometry combined with the RWRA. It was found that the average difference between the pooled blood pressures measured by the auscultation and those by the oscillometry combined with the RWRA was found to be only 4.9 mmHg. Clinical results demonstrated that the proposed RWRA is more robust than the traditional curve fitting algorithm (TCFA). We conclude that the proposed RWRA can be applied to effectively improve the accuracy of the oscillometric blood pressure measurement.

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Arrhythmia Compensation Of A Predictive Noninvasive Blood Pressure Algorithm

Cited by 3 publications

References 0 publications

Preliminary Study of Motion Artifact Rejection for NIBP measurement in an Ambulance

Preliminary Study of Motion Artifact Rejection for NIBP measurement in an Ambulance

The application of signal averaging to the NIBP oscillometric waveform

Reduction of interference in oscillometric arterial blood pressure measurement using fuzzy logic

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