Precision wearable accelerometer contact microphones for longitudinal monitoring of mechano-acoustic cardiopulmonary signals

Abstract Mechano-acoustic signals emanating from the heart and lungs contain valuable information about the cardiopulmonary system. Unobtrusive wearable sensors capable of monitoring these signals longitudinally can detect early pathological signatures and titrate care accordingly. Here, we present...

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Autores principales: Pranav Gupta, Mohammad J. Moghimi, Yaesuk Jeong, Divya Gupta, Omer T. Inan, Farrokh Ayazi
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Publicado: Nature Portfolio 2020
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spelling oai:doaj.org-article:101b51ac05804ba5ae76ea1ca151defd2021-12-02T14:28:20ZPrecision wearable accelerometer contact microphones for longitudinal monitoring of mechano-acoustic cardiopulmonary signals10.1038/s41746-020-0225-72398-6352https://doaj.org/article/101b51ac05804ba5ae76ea1ca151defd2020-02-01T00:00:00Zhttps://doi.org/10.1038/s41746-020-0225-7https://doaj.org/toc/2398-6352Abstract Mechano-acoustic signals emanating from the heart and lungs contain valuable information about the cardiopulmonary system. Unobtrusive wearable sensors capable of monitoring these signals longitudinally can detect early pathological signatures and titrate care accordingly. Here, we present a wearable, hermetically-sealed high-precision vibration sensor that combines the characteristics of an accelerometer and a contact microphone to acquire wideband mechano-acoustic physiological signals, and enable simultaneous monitoring of multiple health factors associated with the cardiopulmonary system including heart and respiratory rate, heart sounds, lung sounds, and body motion and position of an individual. The encapsulated accelerometer contact microphone (ACM) utilizes nano-gap transducers to achieve extraordinary sensitivity in a wide bandwidth (DC-12 kHz) with high dynamic range. The sensors were used to obtain health factors of six control subjects with varying body mass index, and their feasibility in detection of weak mechano-acoustic signals such as pathological heart sounds and shallow breathing patterns is evaluated on patients with preexisting conditions.Pranav GuptaMohammad J. MoghimiYaesuk JeongDivya GuptaOmer T. InanFarrokh AyaziNature PortfolioarticleComputer applications to medicine. Medical informaticsR858-859.7ENnpj Digital Medicine, Vol 3, Iss 1, Pp 1-8 (2020)
institution DOAJ
collection DOAJ
language EN
topic Computer applications to medicine. Medical informatics
R858-859.7
spellingShingle Computer applications to medicine. Medical informatics
R858-859.7
Pranav Gupta
Mohammad J. Moghimi
Yaesuk Jeong
Divya Gupta
Omer T. Inan
Farrokh Ayazi
Precision wearable accelerometer contact microphones for longitudinal monitoring of mechano-acoustic cardiopulmonary signals
description Abstract Mechano-acoustic signals emanating from the heart and lungs contain valuable information about the cardiopulmonary system. Unobtrusive wearable sensors capable of monitoring these signals longitudinally can detect early pathological signatures and titrate care accordingly. Here, we present a wearable, hermetically-sealed high-precision vibration sensor that combines the characteristics of an accelerometer and a contact microphone to acquire wideband mechano-acoustic physiological signals, and enable simultaneous monitoring of multiple health factors associated with the cardiopulmonary system including heart and respiratory rate, heart sounds, lung sounds, and body motion and position of an individual. The encapsulated accelerometer contact microphone (ACM) utilizes nano-gap transducers to achieve extraordinary sensitivity in a wide bandwidth (DC-12 kHz) with high dynamic range. The sensors were used to obtain health factors of six control subjects with varying body mass index, and their feasibility in detection of weak mechano-acoustic signals such as pathological heart sounds and shallow breathing patterns is evaluated on patients with preexisting conditions.
format article
author Pranav Gupta
Mohammad J. Moghimi
Yaesuk Jeong
Divya Gupta
Omer T. Inan
Farrokh Ayazi
author_facet Pranav Gupta
Mohammad J. Moghimi
Yaesuk Jeong
Divya Gupta
Omer T. Inan
Farrokh Ayazi
author_sort Pranav Gupta
title Precision wearable accelerometer contact microphones for longitudinal monitoring of mechano-acoustic cardiopulmonary signals
title_short Precision wearable accelerometer contact microphones for longitudinal monitoring of mechano-acoustic cardiopulmonary signals
title_full Precision wearable accelerometer contact microphones for longitudinal monitoring of mechano-acoustic cardiopulmonary signals
title_fullStr Precision wearable accelerometer contact microphones for longitudinal monitoring of mechano-acoustic cardiopulmonary signals
title_full_unstemmed Precision wearable accelerometer contact microphones for longitudinal monitoring of mechano-acoustic cardiopulmonary signals
title_sort precision wearable accelerometer contact microphones for longitudinal monitoring of mechano-acoustic cardiopulmonary signals
publisher Nature Portfolio
publishDate 2020
url https://doaj.org/article/101b51ac05804ba5ae76ea1ca151defd
work_keys_str_mv AT pranavgupta precisionwearableaccelerometercontactmicrophonesforlongitudinalmonitoringofmechanoacousticcardiopulmonarysignals
AT mohammadjmoghimi precisionwearableaccelerometercontactmicrophonesforlongitudinalmonitoringofmechanoacousticcardiopulmonarysignals
AT yaesukjeong precisionwearableaccelerometercontactmicrophonesforlongitudinalmonitoringofmechanoacousticcardiopulmonarysignals
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AT omertinan precisionwearableaccelerometercontactmicrophonesforlongitudinalmonitoringofmechanoacousticcardiopulmonarysignals
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