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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Nature Portfolio
2020
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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) |
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Computer applications to medicine. Medical informatics R858-859.7 |
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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 AT divyagupta precisionwearableaccelerometercontactmicrophonesforlongitudinalmonitoringofmechanoacousticcardiopulmonarysignals AT omertinan precisionwearableaccelerometercontactmicrophonesforlongitudinalmonitoringofmechanoacousticcardiopulmonarysignals AT farrokhayazi precisionwearableaccelerometercontactmicrophonesforlongitudinalmonitoringofmechanoacousticcardiopulmonarysignals |
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