HGCTNet: Handcrafted Feature-Guided CNN and Transformer Network for Wearable Cuffless Blood Pressure Measurement DOI
Zengding Liu, Ye Li, Yuan‐Ting Zhang

et al.

IEEE Journal of Biomedical and Health Informatics, Journal Year: 2024, Volume and Issue: 28(7), P. 3882 - 3894

Published: April 30, 2024

Biosignals collected by wearable devices, such as electrocardiogram and photoplethysmogram, exhibit redundancy global temporal dependencies, posing a challenge in extracting discriminative features for blood pressure (BP) estimation. To address this challenge, we propose HGCTNet, handcrafted feature-guided CNN transformer network cuffless BP measurement based on devices. By leveraging convolutional operations self-attention mechanisms, design CNN-Transformer hybrid architecture to learn from biosignals that capture both local information dependencies. Then, introduce attention module utilizes extracted query vectors eliminate redundant within the learned features. Finally, feature fusion integrates features, demographics enhance model performance. We validate our approach using two large datasets: CAS-BP dataset Aurora-BP dataset. Experimental results demonstrate HGCTNet achieves an estimation error of 0.9 $\pm$ 6.5 mmHg diastolic (DBP) 0.7 8.3 systolic (SBP) On dataset, corresponding errors are notation="LaTeX">$-$ 0.4 7.0 DBP 8.6 SBP. Compared current state-of-the-art approaches, reduces mean absolute SBP 10.68% 9.84% These highlight potential improving performance measurements. The source code available at https://github.com/zdzdliu/HGCTNet.

Language: Английский

Blood pressure and its variability: classic and novel measurement techniques DOI Open Access
Aletta E. Schutte, Αναστάσιος Κόλλιας, George S. Stergiou

et al.

Nature Reviews Cardiology, Journal Year: 2022, Volume and Issue: 19(10), P. 643 - 654

Published: April 19, 2022

Language: Английский

Citations

193
Piezoelectric Dynamics of Arterial Pulse for Wearable Continuous Blood Pressure Monitoring DOI
Zhiran Yi,

Zhaoxu Liu,

Wenbo Li

et al.

Advanced Materials, Journal Year: 2022, Volume and Issue: 34(16)

Published: March 14, 2022

Piezoelectric arterial pulse wave dynamics are traditionally considered to be similar those of typical blood pressure waves. However, achieving accurate continuous monitoring based on waves remains challenging, because the correlation between piezoelectric and their related is unclear. To address this, first elucidated via theoretical, simulation, experimental analysis these dynamics. Based this correlation, authors develop a wireless wearable system, with better portability than conventional systems that velocity multiple sensors. They explore feasibility without motion artifacts, using single sensor. These findings eliminate controversy over response, can potentially used portable device for early prevention daily control hypertension.

Language: Английский

Citations

174
Continuous cuffless monitoring of arterial blood pressure via graphene bioimpedance tattoos DOI
Dmitry Kireev, Kaan Sel, Bassem Ibrahim

et al.

Nature Nanotechnology, Journal Year: 2022, Volume and Issue: 17(8), P. 864 - 870

Published: June 20, 2022

Language: Английский

Citations

145
Cuffless blood pressure measuring devices: review and statement by the European Society of Hypertension Working Group on Blood Pressure Monitoring and Cardiovascular Variability DOI
George S. Stergiou, Ramakrishna Mukkamala, Alberto Avolio

et al.

Journal of Hypertension, Journal Year: 2022, Volume and Issue: 40(8), P. 1449 - 1460

Published: June 16, 2022

Background: Many cuffless blood pressure (BP) measuring devices are currently on the market claiming that they provide accurate BP measurements. These technologies have considerable potential to improve awareness, treatment, and management of hypertension. However, recent guidelines by European Society Hypertension do not recommend for diagnosis Objective: This statement Working Group Monitoring Cardiovascular Variability presents types technologies, issues in their validation, recommendations clinical practice. Statements: Cuffless monitors constitute a wide heterogeneous group novel with different intended uses. specific accuracy issues, which render established validation protocols cuff inadequate validation. In 2014, Institute Electrical Electronics Engineers published standard devices, International Organization Standardization is developing another standard. The should address related need individual calibration, stability measurements post ability track changes, implementation machine learning technology. Clinical field investigations may also be considered regarding readings investigated. Conclusion: changing fundamental questions accuracy, performance, carefully addressed before can recommended use.

Language: Английский

Citations

128
Thin, soft, wearable system for continuous wireless monitoring of artery blood pressure DOI Creative Commons
Jian Li, Huiling Jia, Jingkun Zhou

et al.

Nature Communications, Journal Year: 2023, Volume and Issue: 14(1)

Published: Aug. 17, 2023

Continuous monitoring of arterial blood pressure (BP) outside a clinical setting is crucial for preventing and diagnosing hypertension related diseases. However, current continuous BP instruments suffer from either bulky systems or poor user-device interfacial performance, hampering their applications in monitoring. Here, we report thin, soft, miniaturized system (TSMS) that combines conformal piezoelectric sensor array, an active adaptation unit, signal processing module, advanced machine learning method, to allow real wearable, wireless ambulatory artery BP. By optimizing the materials selection, control/sampling strategy, integration, TSMS exhibits improved performance while maintaining Grade A level measurement accuracy. Initial trials on 87 volunteers tracking two individuals prove capability as reliable product, its feasibility practical usability precise control personalized diagnosis schemes development.

Language: Английский

Citations

125
Cuffless Blood Pressure Measurement DOI Creative Commons
Ramakrishna Mukkamala, George S. Stergiou, Alberto Avolio

et al.

Annual Review of Biomedical Engineering, Journal Year: 2022, Volume and Issue: 24(1), P. 203 - 230

Published: April 1, 2022

Cuffless blood pressure (BP) measurement has become a popular field due to clinical need and technological opportunity. However, no method been broadly accepted hitherto. The objective of this review is accelerate progress in the development application cuffless BP methods. We begin by describing principles conventional measurement, outstanding hypertension/hypotension problems that could be addressed with methods, recent advances, including smartphone proliferation wearable sensing, are driving field. then present all major methods under investigation, their current evidence. Our presentation includes calibrated (i.e., pulse transit time, wave analysis, facial video processing) uncalibrated oscillometry, ultrasound, volume control). can offer convenience advantages, whereas do not require periodic cuff device usage or demographic inputs. conclude summarizing highlighting potentially useful future research directions.

Language: Английский

Citations

98
Smart Wearable Systems for Health Monitoring DOI Creative Commons

Zhiyong Deng,

Lihao Guo,

Ximeng Chen

et al.

Sensors, Journal Year: 2023, Volume and Issue: 23(5), P. 2479 - 2479

Published: Feb. 23, 2023

Smart wearable systems for health monitoring are highly desired in personal wisdom medicine and telemedicine. These make the detecting, monitoring, recording of biosignals portable, long-term, comfortable. The development optimization health-monitoring have focused on advanced materials system integration, number high-performance has been gradually increasing recent years. However, there still many challenges these fields, such as balancing trade-off between flexibility/stretchability, sensing performance, robustness systems. For this reason, more evolution is required to promote In regard, review summarizes some representative achievements progress monitoring. Meanwhile, a strategy overview presented about selecting materials, integrating systems, biosignals. next generation accurate, continuous, long-term will offer opportunities disease diagnosis treatment.

Language: Английский

Citations

65
European Society of Hypertension recommendations for the validation of cuffless blood pressure measuring devices: European Society of Hypertension Working Group on Blood Pressure Monitoring and Cardiovascular Variability DOI
George S. Stergiou, Alberto Avolio, Paolo Palatini

et al.

Journal of Hypertension, Journal Year: 2023, Volume and Issue: 41(12), P. 2074 - 2087

Published: June 12, 2023

There is intense effort to develop cuffless blood pressure (BP) measuring devices, and several are already on the market claiming that they provide accurate measurements. These devices heterogeneous in measurement principle, intended use, functions, calibration, have special accuracy issues requiring different validation than classic cuff BP monitors. To date, there no generally accepted protocols for their ensure adequate clinical use.This statement by European Society of Hypertension (ESH) Working Group Monitoring Cardiovascular Variability recommends procedures validating intermittent (providing measurements every >30 sec usually 30-60 min, or upon user initiation), which most common.Six tests defined evaluating aspects devices: static test (absolute accuracy); device position (hydrostatic effect robustness); treatment (BP decrease awake/asleep change exercise increase recalibration (cuff calibration stability over time). Not all these required a given device. The necessary depend whether requires individual measures automatically manually, takes more one position.The complex needs be tailored according functions calibration. ESH recommendations present specific, clinically meaningful, pragmatic types only will used evaluation management hypertension.

Language: Английский

Citations

56
Continuous cuffless blood pressure monitoring with a wearable ring bioimpedance device DOI Creative Commons
Kaan Sel, Deen Osman,

Noah Huerta

et al.

npj Digital Medicine, Journal Year: 2023, Volume and Issue: 6(1)

Published: March 30, 2023

Smart rings provide unique opportunities for continuous physiological measurement. They are easy to wear, little burden in comparison other smart wearables, suitable nocturnal settings, and can be sized ideal contact between the sensors skin at all times. Continuous measuring of blood pressure (BP) provides essential diagnostic prognostic value cardiovascular health management. However, conventional ambulatory BP measurement devices operate using an inflating cuff that is bulky, intrusive, impractical frequent or measurements. We introduce ring-shaped bioimpedance leveraging deep tissue sensing ability while introducing no sensitivity tones, unlike optical modalities. integrate human finger finite element model with exhaustive experimental data from participants derive optimum design parameters electrode placement sizes yields highest arterial volumetric changes, discrimination against varying tones. constructed machine learning algorithms. The ring used estimate showing peak correlations 0.81, low error (systolic BP: 0.11 ± 5.27 mmHg, diastolic 3.87 mmHg) >2000 points wide ranges (systolic: 89-213 mmHg diastolic: 42-122 mmHg), highlighting significant potential use accurate estimation BP.

Language: Английский

Citations

42
A review of machine learning in hypertension detection and blood pressure estimation based on clinical and physiological data DOI Creative Commons
Erick Axel Martinez-Ríos, Luis Montesinos, Mariel Alfaro-Ponce

et al.

Biomedical Signal Processing and Control, Journal Year: 2021, Volume and Issue: 68, P. 102813 - 102813

Published: June 1, 2021

The use of machine learning techniques in medicine has increased recent years due to a rise publicly available datasets. These have been applied high blood pressure studies following two approaches: hypertension stage classification based on clinical data and estimation related physiological signals. This paper presents literature review such studies. We aimed identify the best practices, challenges, opportunities developing models detect or estimate using Hence, we identified examined techniques, datasets, predictors used previous feature selection reduce model complexity are also reviewed. found lack combining socio-demographic with signals, despite correlation photoplethysmography waveforms variables as age, gender, body mass index, heart rate. Therefore, there is an opportunity increase performance by both types for detection monitoring.

Language: Английский

Citations

92