Blood Pressure Measurement: From Cuff-Based to Contactless Monitoring DOI Open Access

Ping-Kwan Man,

Kit-Leong Cheung,

Nawapon Sangsiri

et al.

Healthcare, Journal Year: 2022, Volume and Issue: 10(10), P. 2113 - 2113

Published: Oct. 21, 2022

Blood pressure (BP) determines whether a person has hypertension and offers implications as to he or she could be affected by cardiovascular disease. Cuff-based sphygmomanometers have traditionally provided both accuracy reliability, but they require bulky equipment relevant skills obtain precise measurements. BP measurement from photoplethysmography (PPG) signals become promising alternative for convenient unobtrusive monitoring. Moreover, the recent developments in remote (rPPG) algorithms enabled new innovations contactless measurement. This paper illustrates evolution of techniques biophysical theory, through development contact-based PPG signals, modern rPPG signals. We consolidate knowledge diverse background academic research highlight importance multi-feature analysis improving accuracy. conclude with ongoing challenges, opportunities, possible future directions this emerging field research.

Language: Английский

Current progress of photoplethysmography and SPO2 for health monitoring DOI Open Access
T. Tamura

Biomedical Engineering Letters, Journal Year: 2019, Volume and Issue: 9(1), P. 21 - 36

Published: Feb. 1, 2019

Language: Английский

Citations

199
The 2023 wearable photoplethysmography roadmap DOI Creative Commons
Peter Charlton, John Allen, Raquel Bailón

et al.

Physiological Measurement, Journal Year: 2023, Volume and Issue: 44(11), P. 111001 - 111001

Published: July 26, 2023

Abstract Photoplethysmography is a key sensing technology which used in wearable devices such as smartwatches and fitness trackers. Currently, photoplethysmography sensors are to monitor physiological parameters including heart rate rhythm, track activities like sleep exercise. Yet, has potential provide much more information on health wellbeing, could inform clinical decision making. This Roadmap outlines directions for research development realise the full of photoplethysmography. Experts discuss topics within areas sensor design, signal processing, applications, directions. Their perspectives valuable guidance researchers developing technology.

Language: Английский

Citations

46
Clinical assessment of a non-invasive wearable MEMS pressure sensor array for monitoring of arterial pulse waveform, heart rate and detection of atrial fibrillation DOI Creative Commons
Matti Kaisti, Tuukka Panula, Joni Leppänen

et al.

npj Digital Medicine, Journal Year: 2019, Volume and Issue: 2(1)

Published: May 14, 2019

There is an unmet clinical need for a low cost and easy to use wearable devices continuous cardiovascular health monitoring. A flexible wristband, based on microelectromechanical sensor (MEMS) elements array was developed support this need. The performance of the device in monitoring investigated by (i) comparing arterial pressure waveform recordings gold standard, invasive catheter recording (n = 18), (ii) analyzing ability detect irregularities rhythm 7), (iii) measuring heartrate accuracy 31). Arterial waveforms carry important physiological information comparison study revealed that made with standard resulted almost identical (r 0.9-0.99) pulse waveforms. can measure heart possible it. clustering analysis demonstrates perfect classification between atrial fibrillation (AF) sinus rhythm. showed near beat-to-beat (sensitivity 99.1%, precision 100%) healthy subjects. In contrast, detection from coronary artery disease patients challenging, but averaged extracted successfully (95% CI: -1.2 1.1 bpm). conclusion, results indicate could be useful remote diseases personalized medicine.

Language: Английский

Citations

136
Hyperspectral imaging of human skin aided by artificial neural networks DOI Creative Commons
Evgeny Zherebtsov, Viktor Dremin, Alexey Popov

et al.

Biomedical Optics Express, Journal Year: 2019, Volume and Issue: 10(7), P. 3545 - 3545

Published: June 24, 2019

We developed a compact, hand-held hyperspectral imaging system for 2D neural network-based visualization of skin chromophores and blood oxygenation.State-of-the-art microoptic multichannel matrix sensor combined with the tunable Fabry-Perot micro interferometer enables portable diagnostic device sensitive to changes oxygen saturation as well variations volume fraction human skin.Generalized object-oriented Monte Carlo model is used extensively training an artificial network utilized image processing.In addition, results are verified validated via actual experiments tissue phantoms in vivo.The proposed approach tool combining both speed processing accuracy flexibility advanced modeling.Finally, feasibility studies experimental tests on biotissue healthy volunteers presented.

Language: Английский

Citations

93
Photoplethysmography signal processing and synthesis DOI
Elisa Mejía‐Mejía, John Allen, Karthik Budidha

et al.

Elsevier eBooks, Journal Year: 2021, Volume and Issue: unknown, P. 69 - 146

Published: Nov. 12, 2021

Language: Английский

Citations

57
Fully integrated photoacoustic microscopy and photoplethysmography of human in vivo DOI Creative Commons
Joongho Ahn, Jin Woo Baik,

Yeonggeon Kim

et al.

Photoacoustics, Journal Year: 2022, Volume and Issue: 27, P. 100374 - 100374

Published: May 20, 2022

Photoacoustic microscopy (PAM) is used to visualize blood vessels and monitor their time-dependent changes. Photoplethysmography (PPG) measures hemodynamic time-series changes such as heart rate. However, PPG's limited visual access the dynamic of has prohibited further understanding hemodynamics. Here, we propose a novel, fully integrated PAM photoplethysmography (PAM-PPG) system understand features in detail. Using PAM-PPG system, simultaneously acquire vascular images (by PAM) volume PPG) from human fingers. Next, determine rate PA signals, which match well with PPG signals. These can be measured if flow not blocked. From results, believe that could useful clinical tool various fields cardiology endocrinology.

Language: Английский

Citations

49
Photoplethysmograhic sensors, potential and limitations: Is it time for regulation? A comprehensive review DOI Creative Commons
Francesco Scardulla, Gloria Cosoli, Susanna Spinsante

et al.

Measurement, Journal Year: 2023, Volume and Issue: 218, P. 113150 - 113150

Published: June 5, 2023

Healthcare is expected to increasingly shift care out of inpatient settings thanks wearable monitoring systems. Photoplethysmography (PPG) an optical technique already integrated into wrist-worn commercial products which presents significant advantages in terms cost and dimensions. PPG-based devices, despite their ability detect multiple cardiovascular parameters, are affected by several influencing conditions that depend both on technological or environmental variables, intra- inter-subject variability influences the whole measurement chain reliability, hindering objective characterization PPG devices. Plus, lack standardization for data collection processing leads generalizability reproducibility results, preventing full exploitation potential prognostic capacity this technology. Thus, review aims not only summarize main parameters technology, should be addressed when testing sensor, but also suggest tentative guidelines a possible future initiative.

Language: Английский

Citations

31
Monte Carlo Analysis of Optical Interactions in Reflectance and Transmittance Finger Photoplethysmography DOI Creative Commons
Subhasri Chatterjee, P. A. Kyriacou

Sensors, Journal Year: 2019, Volume and Issue: 19(4), P. 789 - 789

Published: Feb. 15, 2019

Photoplethysmography (PPG) is a non-invasive photometric technique that measures the volume changes in arterial blood. Recent studies have reported limitations developing and optimising PPG-based sensing technologies due to unavailability of fundamental information such as PPG-pathlength penetration depth certain region interest (ROI) human body. In this paper, robust computational model dual wavelength PPG system was developed using Monte Carlo technique. A three-dimensional heterogeneous specific ROI (i.e., finger) exposed at red (660 nm) infrared (940 wavelengths reflectance transmittance modalities PPG. The optical interactions with individual pulsatile non-pulsatile tissue-components were demonstrated parameters (e.g., pathlength, depth, absorbance, transmittance) investigated. Results optimised source-detector separation for finger-PPG sensor. analysis recorded confirmed maximum minimum impact dermis bone tissue-layers, respectively, formation signal. results presented paper provide necessary develop transcutaneous sensors understand origin ac dc components

Language: Английский

Citations

70
Remote estimation of pulse wave features related to arterial stiffness and blood pressure using a camera DOI Creative Commons
Djamaleddine Djeldjli, Frédéric Bousefsaf, Choubeila Maaoui

et al.

Biomedical Signal Processing and Control, Journal Year: 2020, Volume and Issue: 64, P. 102242 - 102242

Published: Oct. 15, 2020

Language: Английский

Citations

59
High‐Accuracy Photoplethysmography Array Using Near‐Infrared Organic Photodiodes with Ultralow Dark Current DOI Creative Commons

Giulio Simone,

Daniel Tordera,

Ezequiel Delvitto

et al.

Advanced Optical Materials, Journal Year: 2020, Volume and Issue: 8(10)

Published: March 16, 2020

Abstract Reflectance oximeters based on organic photodiode (OPD) arrays offer the potential to map blood pulsation and oxygenation via photoplethysmography (PPG) over a large area beyond traditional sensing locations. Here, an reflectance PPG array 16 × OPD pixels is developed. The individual exhibit near‐infrared sensitivity up ≈950 nm low dark current density in order of 10 −6 mA cm −2 . This results high‐quality signals. Analysis full waveform yields insight artery stiffness quality circulation, demonstrating these pulse oximetry heart‐rate calculation.

Language: Английский

Citations

57