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...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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MDPI AG
2021-11-01
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| Series: | Sensors |
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| Online Access: | https://www.mdpi.com/1424-8220/21/21/7334 |
| _version_ | 1827677799131906048 |
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| 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 |
| collection | DOAJ |
| 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. |
| first_indexed | 2024-03-10T05:51:51Z |
| format | Article |
| id | doaj.art-48acca6dbcc048f69fa6a4a397d63c67 |
| institution | Directory Open Access Journal |
| issn | 1424-8220 |
| language | English |
| last_indexed | 2024-03-10T05:51:51Z |
| publishDate | 2021-11-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Sensors |
| spelling | doaj.art-48acca6dbcc048f69fa6a4a397d63c672023-11-22T21:40:04ZengMDPI AGSensors1424-82202021-11-012121733410.3390/s21217334Blood Pressure Continuous Measurement through a Wearable Device: Development and Validation of a Cuffless MethodBeatrice De Marchi0Mattia Frigerio1Silvia De Nadai2Gianluigi Longinotti-Buitoni3Andrea Aliverti4Dipartimento di Elettronica, Informazione e Bioingegneria, Politecnico di Milano, 20133 Milano, ItalyL.I.F.E. Italia S.r.l., 20146 Milano, ItalyL.I.F.E. Italia S.r.l., 20146 Milano, ItalyDipartimento di Elettronica, Informazione e Bioingegneria, Politecnico di Milano, 20133 Milano, ItalyDipartimento di Elettronica, Informazione e Bioingegneria, Politecnico di Milano, 20133 Milano, ItalyThe 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.https://www.mdpi.com/1424-8220/21/21/7334blood pressurecontinuous monitoringnoninvasivecufflesswearable devicephotoplethysmography |
| spellingShingle | 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 Sensors blood pressure continuous monitoring noninvasive cuffless wearable device photoplethysmography |
| title | 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_short | 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 |
| topic | blood pressure continuous monitoring noninvasive cuffless wearable device photoplethysmography |
| url | https://www.mdpi.com/1424-8220/21/21/7334 |
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