Instruments and Methods for Calibration of Oscillometric Blood Pressure Measurement Devices

Balestrieri, E.; Rapuano, Sergio

doi:10.1109/tim.2010.2050978

Cited by 46 publications

(22 citation statements)

References 36 publications

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“…Several test simulators have been developed for detection of systematic errors in automated BP monitors [151], [152]. These simulators are based on applying test signals from a comprehensive database of oscillometric signals and using a validation protocol to assess the accuracy of the BP monitor [153].…”

Section: Methodsmentioning

confidence: 99%

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Oscillometric Blood Pressure Estimation: Past, Present, and Future

Forouzanfar

Dajani

Groza

et al. 2015

IEEE Rev. Biomed. Eng.

159

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The use of automated blood pressure (BP) monitoring is growing as it does not require much expertise and can be performed by patients several times a day at home. Oscillometry is one of the most common measurement methods used in automated BP monitors. A review of the literature shows that a large variety of oscillometric algorithms have been developed for accurate estimation of BP but these algorithms are scattered in many different publications or patents. Moreover, considering that oscillometric devices dominate the home BP monitoring market, little effort has been made to survey the underlying algorithms that are used to estimate BP. In this review, a comprehensive survey of the existing oscillometric BP estimation algorithms is presented. The survey covers a broad spectrum of algorithms including the conventional maximum amplitude and derivative oscillometry as well as the recently proposed learning algorithms, model-based algorithms, and algorithms that are based on analysis of pulse morphology and pulse transit time. The aim is to classify the diverse underlying algorithms, describe each algorithm briefly, and discuss their advantages and disadvantages. This paper will also review the artifact removal techniques in oscillometry and the current standards for the automated BP monitors.

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Section: Methodsmentioning

confidence: 99%

“…Critical reviews of current standards and protocols dealing with the validation and calibration of automated noninvasive BP monitors are provided in [151]- [153], [189].…”

Section: Standards For Automated Bp Monitorsmentioning

confidence: 99%

Oscillometric Blood Pressure Estimation: Past, Present, and Future

Forouzanfar

Dajani

Groza

et al. 2015

IEEE Rev. Biomed. Eng.

159

View full text Add to dashboard Cite

show abstract

“…Despite advances in technology and an increase in clinical use, automatic NIBP monitoring still faces challenges vis-à-vis accuracy and reliability. Chronic patient conditions like atrial fibrillation (AF) and heart failure, and noise such as motion artifact tend to render NIBP estimation somewhat inaccurate and unreliable [10][11][12]. Notably, current NIBP monitoring technology provides no self-contained method to evaluate the fidelity and trustworthiness of BP estimates that it provides.…”

Section: Introductionmentioning

confidence: 99%

Method for evaluation of trustworthiness of oscillometric blood pressure measurements

Koohi

Ahmad

Batkin

et al. 2015

2015 IEEE International Symposium on Medical Measurements and Applications (MeMeA) Proceedings

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Simple, unobtrusive, and reliable estimation of cardiovascular parameters is a challenge. We present a novel, simple, and noninvasive method called Ratio2 that provides expected ranges for systolic and diastolic blood pressure values (SBP, DBP) estimated by any algorithm, and an evaluation of vessel compliance. Ratio2 was developed in the frame of the oscillometric blood pressure estimation and it exploits the equality between the arterial blood pressure and the cuff pressure at the mean arterial pressure (MAP). This method is based on the observation that the brachial arterial blood pressure pulses, with MAP used as baseline, are characterized by a peak to trough ratio close to 2. This ratio is employed to characterize expected ranges for estimates of systolic and diastolic blood pressure. Any SBP or DBP measurement which is not contained in these intervals is deemed untrustworthy, and it is marked as such. Ratio2 also provides parameters that are used in a mathematical model of arterial blood pressure (BP) to evaluate vessel stiffness. We tested the performance of the Ratio2 method on 150 oscillometric recordings and their corresponding Omron BP estimates obtained from 10 healthy subjects. Results are encouraging, whereby, (a) out-of-range values obtained with the maximum amplitude algorithm (MAA) and the maximum/minimum slope algorithm (MMSA) methods were successfully detected, and (b) linear correlation between age and vessel compliance is -85% (p<0.005). Therefore, we conclude that the proposed work shows promise towards providing noninvasive BP monitors with an inbuilt mechanism for assessing the fidelity of their BP estimates along with an indicator of vessel compliance.This full text paper was peer-reviewed at the direction of IEEE Instrumentation and Measurement Society prior to the acceptance and publication.978-1-4799-6477-2/15/$31.00 ©2015 IEEE

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“…Non-invasive automated sphygmomanometers have been widely used to measure blood pressure. Although the readings produced by these instruments have been compared with direct arterial measurements, such comparisons have limited ability to reveal their true accuracy because normal respiratory variations can amount to 10 mmHg or more [1]. Therefore, a hydraulic model of cardiovascular system containing a surrogate arm (Non-invasive pressure simulator) is needed, where a stable standard blood pressure is produced, and can be compared with indirect measurements.…”

Section: Introductionmentioning

confidence: 99%

A simplified computer model of cardiovascular system with an arm branch

Chen

Song

Guo

et al. 2014

Bio-Medical Materials and Engineering

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Non-invasive pressure simulators that regenerate oscillometric waveforms promise an alternative to expensive clinical trials for validating oscillometric noninvasive blood pressure devices. However, existing simulators only provide oscillometric pressure in cuff and thus have a limited accuracy. It is promising to build a physical simulator that contains a synthetic arm with a built-in brachial artery and an affiliated hydraulic model of cardiovascular system. To guide the construction of this kind of simulator, this paper presents a computer model of cardiovascular system with a relatively simple structure, where the distribution of pressures and flows in aorta root and brachial artery can be simulated, and the produced waves are accordant with the physical data. This model can be used to provide the parameters and structure that will be needed to build the new simulator.

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Instruments and Methods for Calibration of Oscillometric Blood Pressure Measurement Devices

Cited by 46 publications

References 36 publications

Oscillometric Blood Pressure Estimation: Past, Present, and Future

Oscillometric Blood Pressure Estimation: Past, Present, and Future

Method for evaluation of trustworthiness of oscillometric blood pressure measurements

A simplified computer model of cardiovascular system with an arm branch

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