Cuffless blood pressure estimation using only a smartphone

Abstract Cuffless blood pressure (BP) measurement is an all-inclusive term for a method that aims to measure BP without using a cuff. Recent cuffless technology has made it possible to estimate BP with reasonable accuracy. However, mainstream methods require an electrocardiogram and photoplethysmogr...

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Autores principales:	Kenta Matsumura, Peter Rolfe, Sogo Toda, Takehiro Yamakoshi
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2018
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/54971ba423b64abd9dc2618e1638aae2
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spelling	oai:doaj.org-article:54971ba423b64abd9dc2618e1638aae22021-12-02T12:32:47ZCuffless blood pressure estimation using only a smartphone10.1038/s41598-018-25681-52045-2322https://doaj.org/article/54971ba423b64abd9dc2618e1638aae22018-05-01T00:00:00Zhttps://doi.org/10.1038/s41598-018-25681-5https://doaj.org/toc/2045-2322Abstract Cuffless blood pressure (BP) measurement is an all-inclusive term for a method that aims to measure BP without using a cuff. Recent cuffless technology has made it possible to estimate BP with reasonable accuracy. However, mainstream methods require an electrocardiogram and photoplethysmogram measurements, and frequent calibration procedures using a cuff sphygmomanometer. We therefore developed a far simpler cuffless method, using only heart rate (HR) and modified normalized pulse volume (mNPV) that can be measured using a smartphone, based on the knowledge that ln BP = ln cardiac output (CO) + ln total peripheral resistance (TPR), where CO and TPR are correlated with HR and mNPV, respectively. Here, we show that mean arterial pressure (MAP), systolic BP (SBP), and diastolic BP (DBP) could be estimated using the exponential transformation of linear polynomial equation, (a × ln HR) + (b × ln mNPV) + constant, using only a smartphone, with an accuracy of R > 0.70. This implies that our cuffless method could convert a large number of smartphones or smart watches into simplified sphygmomanometers.Kenta MatsumuraPeter RolfeSogo TodaTakehiro YamakoshiNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 8, Iss 1, Pp 1-9 (2018)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Kenta Matsumura Peter Rolfe Sogo Toda Takehiro Yamakoshi Cuffless blood pressure estimation using only a smartphone
description	Abstract Cuffless blood pressure (BP) measurement is an all-inclusive term for a method that aims to measure BP without using a cuff. Recent cuffless technology has made it possible to estimate BP with reasonable accuracy. However, mainstream methods require an electrocardiogram and photoplethysmogram measurements, and frequent calibration procedures using a cuff sphygmomanometer. We therefore developed a far simpler cuffless method, using only heart rate (HR) and modified normalized pulse volume (mNPV) that can be measured using a smartphone, based on the knowledge that ln BP = ln cardiac output (CO) + ln total peripheral resistance (TPR), where CO and TPR are correlated with HR and mNPV, respectively. Here, we show that mean arterial pressure (MAP), systolic BP (SBP), and diastolic BP (DBP) could be estimated using the exponential transformation of linear polynomial equation, (a × ln HR) + (b × ln mNPV) + constant, using only a smartphone, with an accuracy of R > 0.70. This implies that our cuffless method could convert a large number of smartphones or smart watches into simplified sphygmomanometers.
format	article
author	Kenta Matsumura Peter Rolfe Sogo Toda Takehiro Yamakoshi
author_facet	Kenta Matsumura Peter Rolfe Sogo Toda Takehiro Yamakoshi
author_sort	Kenta Matsumura
title	Cuffless blood pressure estimation using only a smartphone
title_short	Cuffless blood pressure estimation using only a smartphone
title_full	Cuffless blood pressure estimation using only a smartphone
title_fullStr	Cuffless blood pressure estimation using only a smartphone
title_full_unstemmed	Cuffless blood pressure estimation using only a smartphone
title_sort	cuffless blood pressure estimation using only a smartphone
publisher	Nature Portfolio
publishDate	2018
url	https://doaj.org/article/54971ba423b64abd9dc2618e1638aae2
work_keys_str_mv	AT kentamatsumura cufflessbloodpressureestimationusingonlyasmartphone AT peterrolfe cufflessbloodpressureestimationusingonlyasmartphone AT sogotoda cufflessbloodpressureestimationusingonlyasmartphone AT takehiroyamakoshi cufflessbloodpressureestimationusingonlyasmartphone
_version_	1718393978777239552

Cuffless blood pressure estimation using only a smartphone

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