Estimating Continuous Blood Pressure from a Smartphone PPG Using 1D U–Net

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26220%2F26%3A0191348" target="_blank" >RIV/00216305:26220/26:0191348 - isvavai.cz</a>

Result on the web

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DOI - Digital Object Identifier

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Result language

angličtina

Original language name

Estimating Continuous Blood Pressure from a Smartphone PPG Using 1D U–Net

Original language description

The development of new methods for non-invasive blood pressure (BP) monitoring is nowadays moving towards accessible and inexpensive cuffless devices (e.g. smartphone and smartwatch). This paper presents an experimental cuff-less measurement of BP using a smartphone. A photoplethysmographic (PPG) signal measured by a smartphone camera is used to estimate continous BP. Reference continuous BP was captured using Finapres NOVA device based on Penaz principle. This paper verifies the effect of input data personalization on the accuracy of BP estimation using 1D U-Net. Personalization consists in adding the information about age, gender, weight and height of the subject to the PPG signal. The study involves 56 measured subjects. The output of U-Net is continuous BP waveform, which accuracy is compared with reference using Mean Absolute Error (MAE). Personalized approach shows better results MAE = 8.28±6.29 mmHg than non-personalized approach with raw PPGs inputs where MAE = 10.06±7.12 mmHg. In the subsequent estimation of systolic BP (SBP) for the personalized U-Net input, the MAE was 8.45±5.21 mmHg, and in the estimation of diastolic BP (DBP), the MAE was 6.13±4.61 mmHg. Proposed method of non-invasive cuffless smartphone-based is promising and will be further developed to enable it is general and widespread use.

Czech name

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Czech description

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Type

D - Article in proceedings

CEP classification

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OECD FORD branch

20601 - Medical engineering

Project

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Continuities

S - Specificky vyzkum na vysokych skolach

Publication year

2024

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Article name in the collection

Computing in Cardiology 2024

ISBN

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ISSN

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e-ISSN

2325-887X

Number of pages

4

Pages from-to

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Publisher name

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Place of publication

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Event location

Karlsruhe

Event date

Sep 8, 2024

Type of event by nationality

WRD - Celosvětová akce

UT code for WoS article

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