Blood Pressure Continuous Measurement through a Wearable Device: Development and Validation of a Cuffless Method

The present study aims to develop and validate a cuffless method for blood pressure continuous measurement through a wearable device. The goal is achieved according to the time-delay method, with the guiding principle of the time relation it takes for a blood volume to travel from the heart to a per...

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Autores principales:	Beatrice De Marchi, Mattia Frigerio, Silvia De Nadai, Gianluigi Longinotti-Buitoni, Andrea Aliverti
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	blood pressure continuous monitoring noninvasive cuffless wearable device photoplethysmography Chemical technology TP1-1185
Acceso en línea:	https://doaj.org/article/48acca6dbcc048f69fa6a4a397d63c67
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spelling	oai:doaj.org-article:48acca6dbcc048f69fa6a4a397d63c672021-11-11T19:16:46ZBlood Pressure Continuous Measurement through a Wearable Device: Development and Validation of a Cuffless Method10.3390/s212173341424-8220https://doaj.org/article/48acca6dbcc048f69fa6a4a397d63c672021-11-01T00:00:00Zhttps://www.mdpi.com/1424-8220/21/21/7334https://doaj.org/toc/1424-8220The present study aims to develop and validate a cuffless method for blood pressure continuous measurement through a wearable device. The goal is achieved according to the time-delay method, with the guiding principle of the time relation it takes for a blood volume to travel from the heart to a peripheral site. Inversely proportional to the blood pressure, this time relation is obtained as the time occurring between the R peak of the electrocardiographic signal and a marker point on the photoplethysmographic wave. Such physiological signals are recorded by using L.I.F.E. Italia’s wearable device, made of a sensorized shirt and wristband. A linear regression model is implemented to estimate the corresponding blood pressure variations from the obtained time-delay and other features of the photoplethysmographic wave. Then, according to the international standards, the model performance is assessed, comparing the estimates with the measurements provided by a certified digital sphygmomanometer. According to the standards, the results obtained during this study are notable, with 85% of the errors lower than 10 mmHg and a mean absolute error lower than 7 mmHg. In conclusion, this study suggests a time-delay method for continuous blood pressure estimates with good performance, compared with a reference device based on the oscillometric technique.Beatrice De MarchiMattia FrigerioSilvia De NadaiGianluigi Longinotti-BuitoniAndrea AlivertiMDPI AGarticleblood pressurecontinuous monitoringnoninvasivecufflesswearable devicephotoplethysmographyChemical technologyTP1-1185ENSensors, Vol 21, Iss 7334, p 7334 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	blood pressure continuous monitoring noninvasive cuffless wearable device photoplethysmography Chemical technology TP1-1185
spellingShingle	blood pressure continuous monitoring noninvasive cuffless wearable device photoplethysmography Chemical technology TP1-1185 Beatrice De Marchi Mattia Frigerio Silvia De Nadai Gianluigi Longinotti-Buitoni Andrea Aliverti Blood Pressure Continuous Measurement through a Wearable Device: Development and Validation of a Cuffless Method
description	The present study aims to develop and validate a cuffless method for blood pressure continuous measurement through a wearable device. The goal is achieved according to the time-delay method, with the guiding principle of the time relation it takes for a blood volume to travel from the heart to a peripheral site. Inversely proportional to the blood pressure, this time relation is obtained as the time occurring between the R peak of the electrocardiographic signal and a marker point on the photoplethysmographic wave. Such physiological signals are recorded by using L.I.F.E. Italia’s wearable device, made of a sensorized shirt and wristband. A linear regression model is implemented to estimate the corresponding blood pressure variations from the obtained time-delay and other features of the photoplethysmographic wave. Then, according to the international standards, the model performance is assessed, comparing the estimates with the measurements provided by a certified digital sphygmomanometer. According to the standards, the results obtained during this study are notable, with 85% of the errors lower than 10 mmHg and a mean absolute error lower than 7 mmHg. In conclusion, this study suggests a time-delay method for continuous blood pressure estimates with good performance, compared with a reference device based on the oscillometric technique.
format	article
author	Beatrice De Marchi Mattia Frigerio Silvia De Nadai Gianluigi Longinotti-Buitoni Andrea Aliverti
author_facet	Beatrice De Marchi Mattia Frigerio Silvia De Nadai Gianluigi Longinotti-Buitoni Andrea Aliverti
author_sort	Beatrice De Marchi
title	Blood Pressure Continuous Measurement through a Wearable Device: Development and Validation of a Cuffless Method
title_short	Blood Pressure Continuous Measurement through a Wearable Device: Development and Validation of a Cuffless Method
title_full	Blood Pressure Continuous Measurement through a Wearable Device: Development and Validation of a Cuffless Method
title_fullStr	Blood Pressure Continuous Measurement through a Wearable Device: Development and Validation of a Cuffless Method
title_full_unstemmed	Blood Pressure Continuous Measurement through a Wearable Device: Development and Validation of a Cuffless Method
title_sort	blood pressure continuous measurement through a wearable device: development and validation of a cuffless method
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/48acca6dbcc048f69fa6a4a397d63c67
work_keys_str_mv	AT beatricedemarchi bloodpressurecontinuousmeasurementthroughawearabledevicedevelopmentandvalidationofacufflessmethod AT mattiafrigerio bloodpressurecontinuousmeasurementthroughawearabledevicedevelopmentandvalidationofacufflessmethod AT silviadenadai bloodpressurecontinuousmeasurementthroughawearabledevicedevelopmentandvalidationofacufflessmethod AT gianluigilonginottibuitoni bloodpressurecontinuousmeasurementthroughawearabledevicedevelopmentandvalidationofacufflessmethod AT andreaaliverti bloodpressurecontinuousmeasurementthroughawearabledevicedevelopmentandvalidationofacufflessmethod
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Blood Pressure Continuous Measurement through a Wearable Device: Development and Validation of a Cuffless Method

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