Results 41 to 50 of about 550 (153)

Contactless seismocardiography via deep learning radars [PDF]

open access: yesProceedings of the 26th Annual International Conference on Mobile Computing and Networking, 2020
The seismocardiogram (SCG) is a recording of a human heart's mechanical activity. It captures fine-grained cardiovascular events such as the opening and closing of heart valves and the contraction and relaxation of heart chambers. Today, SCG recordings are obtained by strapping an accelerometer at the apex of the heart to measure chest wall vibrations.
Ha, Unsoo, Assana, Salah, Adib, Fadel
openaire   +3 more sources

Recent Progress in Flexible and Wearable All Organic Photoplethysmography Sensors for SpO2 Monitoring

open access: yesAdvanced Science, Volume 10, Issue 31, November 3, 2023., 2023
The need for continuous, non‐invasive and real‐time monitoring of cardiovascular vital signs is of primary importance. This requires human‐friendly wearable sensor systems that can be easily and conformably integrated onto the human body. Organic electronic devices may fulfill all those properties.
Jostin Vinroy Dcosta   +2 more
wiley   +1 more source

Estimation of cardiorespiratory fitness in healthy using seismocardiography. [PDF]

open access: yesNPJ Cardiovasc Health
Abstract Cardiorespiratory fitness expressed as maximal oxygen consumption (V̇O2max) is a strong predictor of cardiovascular health, but its measurement through cardiopulmonary exercise (CPX) testing is complex and costly. This study develops and validates an algorithm for non-exercise estimation of V̇O2max using seismocardiography (SCG-V ...
Schmidt SE   +8 more
europepmc   +5 more sources

A Novel Broadband Forcecardiography Sensor for Simultaneous Monitoring of Respiration, Infrasonic Cardiac Vibrations and Heart Sounds

open access: yesFrontiers in Physiology, 2021
The precordial mechanical vibrations generated by cardiac contractions have a rich frequency spectrum. While the lowest frequencies can be palpated, the higher infrasonic frequencies are usually captured by the seismocardiogram (SCG) signal and the ...
Emilio Andreozzi   +3 more
doaj   +1 more source

Forcecardiography: A Novel Technique to Measure Heart Mechanical Vibrations onto the Chest Wall

open access: yesSensors, 2020
This paper presents forcecardiography (FCG), a novel technique to measure local, cardiac-induced vibrations onto the chest wall. Since the 19th century, several techniques have been proposed to detect the mechanical vibrations caused by cardiovascular ...
Emilio Andreozzi   +6 more
doaj   +1 more source

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

open access: yesFrontiers 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   +6 more
doaj   +1 more source

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

open access: yesInternational 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   +4 more
doaj   +1 more source

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

open access: yesSensors, 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   +5 more
doaj   +1 more source

Seismocardiography as a tool for assessment of bi-ventricular pacing

open access: yesPhysiological Measurement, 2022
Abstract Objective. Conduction-induced heart failure in patients with left bundle branch block (LBBB) can benefit from cardiac resynchronization therapy (CRT). However, some patients are non-responders to the therapy with one contributing factor being poor optimization of the atrioventricular ...
Kasper Sørensen   +5 more
openaire   +3 more sources

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