A novel art of continuous noninvasive blood pressure measurement

Fortin, Jürgen; Rogge, Dorothea E.; Fellner, Christian; Flotzinger, Doris; Grond, Julian; Lerche, Katja; Saugel, Bernd

doi:10.1038/s41467-021-21271-8

Cited by 59 publications

(47 citation statements)

References 43 publications

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“…Constant monitoring of blood pressure is important for many patients, especially those with a family history of hypertension. In recent years, cuffless blood pressure [1][2][3][4][5][6][7] has become a more popular method to monitor cardiovascular health and many of them use the optical technique, photoplethysmography (PPG). The PPG technique can be found in many commercial health monitoring devices [8] because it is inexpensive and simple to use.…”

Section: Introductionmentioning

confidence: 99%

External factors that affect the photoplethysmography waveforms

2021

SN Appl. Sci.

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Photoplethysmography (PPG) is a simple and inexpensive technology used in many smart devices to monitor cardiovascular health. The PPG sensors use LED lights to penetrate into the bloodstream to detect the different blood volume changes in the tissue through skin contact by sensing the amount of light that hits the sensor. Typically, the data are displayed on a graph and it forms the pulse waveform. The information from the produced pulse waveform can be useful in calculating measurements that help monitor cardiovascular health, such as blood pressure. With many more people beginning to monitor their health status on their smart devices, it is extremely important that the PPG signal is accurate. Designing a simple experiment with standard laboratory equipment and commercial sensors, we wanted to find how external factors influence the results. In this study, it was found that external factors, touch force and temperature, can have a large impact on the resulting waveform, so the effects of those factors need to be considered in order for the information to become more reliable.

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Section: Introductionmentioning

confidence: 99%

External factors that affect the photoplethysmography waveforms

2021

SN Appl. Sci.

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“…Volume Control Technique (VCT) is an experimental method introduced by CNSystems [38]. Similar to VUT, VCT relies on volume clamping.…”

Section: F Vascular Unloading Techniquementioning

confidence: 99%

“…These promising results are yet to be validated according to a standard protocol. [38] Fig. 4: Top: Vascular unloading technique (VUT).…”

Section: F Vascular Unloading Techniquementioning

confidence: 99%

Advances in Non-Invasive Blood Pressure Measurement Techniques

Panula

Sirkiä

Wong

et al. 2023

IEEE Rev. Biomed. Eng.

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Hypertension, or elevated blood pressure (BP), is a marker for many cardiovascular diseases and can lead to life threatening conditions such as heart failure, coronary artery disease and stroke. Several techniques have recently been proposed and investigated for non-invasive BP monitoring. The increasing desire for telemonitoring solutions that allow patients to manage their own conditions from home has accelerated the development of new BP monitoring techniques. In this review, we present the recent progress in non-invasive blood pressure monitoring solutions emphasizing clinical validation and trade-offs between available techniques. We introduce the current BP measurement techniques with their underlying operating principles. New promising proof-ofconcept studies are presented and recent modeling and machine learning approaches for improved BP estimation are summarized. This aids discussions on how new BP monitors should evaluated in order to bring forth new home monitoring solutions in wearable form factor. Finally, we discuss on unresolved challenges in making convenient, reliable and validated BP monitoring solutions.

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“…Blood pressure (BP) monitoring is an important physiological index for cardiovascular health identification [1][2][3]. The cuff-based digital electronic sphygmomanometer is a noninvasive gold standard to detect BP values.…”

Section: Introductionmentioning

confidence: 99%

Intelligent Bio-Impedance System for Personalized Continuous Blood Pressure Measurement

et al. 2022

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Continuous blood pressure (BP) measurement is crucial for long-term cardiovascular monitoring, especially for prompt hypertension detection. However, most of the continuous BP measurements rely on the pulse transit time (PTT) from multiple-channel physiological acquisition systems that impede wearable applications. Recently, wearable and smart health electronics have become significant for next-generation personalized healthcare progress. This study proposes an intelligent single-channel bio-impedance system for personalized BP monitoring. Compared to the PTT-based methods, the proposed sensing configuration greatly reduces the hardware complexity, which is beneficial for wearable applications. Most of all, the proposed system can extract the significant BP features hidden from the measured bio-impedance signals by an ultra-lightweight AI algorithm, implemented to further establish a tailored BP model for personalized healthcare. In the human trial, the proposed system demonstrates the BP accuracy in terms of the mean error (ME) and the mean absolute error (MAE) within 1.7 ± 3.4 mmHg and 2.7 ± 2.6 mmHg, respectively, which agrees with the criteria of the Association for the Advancement of Medical Instrumentation (AAMI). In conclusion, this work presents a proof-of-concept for an AI-based single-channel bio-impedance BP system. The new wearable smart system is expected to accelerate the artificial intelligence of things (AIoT) technology for personalized BP healthcare in the future.

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A novel art of continuous noninvasive blood pressure measurement

Cited by 59 publications

References 43 publications

External factors that affect the photoplethysmography waveforms

External factors that affect the photoplethysmography waveforms

Advances in Non-Invasive Blood Pressure Measurement Techniques

Intelligent Bio-Impedance System for Personalized Continuous Blood Pressure Measurement

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