Results 61 to 70 of about 1,227 (181)

Cardiovascular function and ballistocardiogram: a relationship interpreted via mathematical modeling [PDF]

, 2019
Objective: to develop quantitative methods for the clinical interpretation of the ballistocardiogram (BCG). Methods: a closed-loop mathematical model of the cardiovascular system is proposed to theoretically simulate the mechanisms generating the BCG ...
Despins, Laurel, Enayati, Moein, Guidoboni, Giovanna, Huxley, Virginia H., Keller, James, Popescu, Mihail, Sacco, Riccardo, Sala, Lorenzo, Skubic, Marjorie, Szopos, Marcela   +9 more
core   +2 more sources

A COMPARISON OF METHODS USING STRAIN GAUGES TO MONITOR PHYSIOLOGICAL MOVEMENTS ON A HOSPITAL BED [PDF]

, 2017
Two methods which are suitable to monitor the small movements of the patient in a horizontal position on the bed are compared. The methods use sensors based on strain gauge bridges configured to measure the torsion deformation and sensors based on strain
Kutílek , Patrik, Smrčka , Pavel, Socha , Luboš, Socha , Vladimír   +3 more
core   +1 more source

Tattoo Assisted Optical Sensor System for Multimodal Discrete Physiological Sensing. [PDF]

Adv Healthc Mater
Conventional temporary tattoos can be used for improving the speckle imaging signal‐to‐noise ratio and stability of the specifically developed device for capturing skin motion related to physiological activities beneath the skin. This allows for sensing multimodal electrophysiological signals and physiological events from the skin consistent with ...
Wu Z, El-Barbary A, Lafleur D, Zhuo S, Williams C, Ameri SK.   +5 more
europepmc   +2 more sources

Definition of Fiducial Points in the Normal Seismocardiogram [PDF]

, 2018
The purpose of this work is to define fiducial points in the seismocardiogram (SCG) and to correlate them with physiological events identified in ultrasound images.
Jensen, Ask S., Schmidt, Samuel E., Struijk, Johannes J., Søgaard, Peter, Sørensen, Kasper   +4 more
core   +2 more sources

Non-invasive cardiac kinetic energy distribution: a new marker of heart failure with impaired ejection fraction (KINO-HF)

Frontiers in Cardiovascular Medicine, 2023
BackgroundHeart failure (HF) remains a major cause of mortality, morbidity, and poor quality of life. 44% of HF patients present impaired left ventricular ejection fraction (LVEF). Kinocardiography (KCG) technology combines ballistocardiography (BCG) and
Eva De Keyzer, Amin Hossein, Jeremy Rabineau, Marielle Morissens, Alexandre Almorad, Alexandre Almorad, Philippe van de Borne   +6 more
doaj   +1 more source

Reconstruction of 3-Axis Seismocardiogram from Right-to-left and Head-to-foot Components Using A Long Short-Term Memory Network

, 2023
This pilot study aims to develop a deep learning model for predicting seismocardiogram (SCG) signals in the dorsoventral direction from the SCG signals in the right-to-left and head-to-foot directions ($\textrm{SCG}_x$ and $\textrm{SCG}_y$).
Rahman, Mohammad Muntasir, Taebi, Amirtahà   +1 more
core   +1 more source

Bio-electrical impedence plethysmography-designing an efficient non-invasive electrode for cardiac rate analysis

International Journal of Endorsing Health Science Research, 2013
Cardiac rate analysis is constituted as one of the most essential parts of physiological patient monitoring. In this research paper, it has been investigated that electrical impedance plethysmography is the most conducive technique for this purpose.
Daniya Umer, Ghanwa Ellahi, Warda Ellahi, Saba Ayub, Zia Mohy Ud Din   +4 more
doaj   +1 more source

Assessment of Ultra-Short Heart Variability Indices Derived by Smartphone Accelerometers for Stress Detection

Sensors, 2019
Body acceleration due to heartbeat-induced reaction forces can be measured as mobile phone accelerometer (m-ACC) signals. Our aim was to test the feasibility of using m-ACC to detect changes induced by stress by ultra-short heart rate variability (USV ...
Federica Landreani, Andrea Faini, Alba Martin-Yebra, Mattia Morri, Gianfranco Parati, Enrico Gianluca Caiani   +5 more
doaj   +1 more source

Heart Rate Monitoring During Different Lung Volume Phases Using Seismocardiography

, 2018
Seismocardiography (SCG) is a non-invasive method that can be used for cardiac activity monitoring. This paper presents a new electrocardiogram (ECG) independent approach for estimating heart rate (HR) during low and high lung volume (LLV and HLV ...
Bomar, Andrew J, Mansy, Hansen A, Sandler, Richard H, Taebi, Amirtaha   +3 more
core   +1 more source

Discrete Wavelet Transforms-Based Analysis of Accelerometer Signals for Continuous Human Cardiac Monitoring

Applied Sciences, 2021
Measuring cardiac activity from the chest using an accelerometer is commonly referred to as seismocardiography. Unfortunately, it cannot provide clinically valid data because it is easily corrupted by motion artefacts.
Hany Ferdinando, Eveliina Seppälä, Teemu Myllylä   +2 more
doaj   +1 more source