Publication detail

Monitoring of heart rate, blood oxygen saturation, and blood pressure using a smartphone

NĚMCOVÁ, A. JORDÁNOVÁ, I. VAŘEČKA, M. SMÍŠEK, R. MARŠÁNOVÁ, L. SMITAL, L. VÍTEK, M.

Original Title

Monitoring of heart rate, blood oxygen saturation, and blood pressure using a smartphone

English Title

Monitoring of heart rate, blood oxygen saturation, and blood pressure using a smartphone

Type

journal article in Web of Science

Language

en

Original Abstract

Smartphones can be used as multifunctional devices for instant monitoring of the users' health. In this study, we proposed methods for the estimation of heart rate (HR), blood oxygen saturation (SpO2), and blood pressure (BP). Two smartphone sensors were used for data recording: the rear camera and the microphone. Our approach for HR and SpO2 estimation was based on creating a photoplethysmogram (PPG) from the camera data. SpO2 estimation was improved and the smartphone quantum efficiency did not have to be known. BP was estimated using the pulse transit time value calculated from the PPG and phonocardiogram (PCG) recorded using the microphone. Fifty records (for HR and SpO2) and 15 records (for BP) were sensed and used for training and testing purposes. An Android (TM) application was developed to provide audio-visual feedback to the measured subject, to indicate whether the placement of the smartphone was appropriate to provide signals of sufficient quality for BP estimation. The mean absolute errors (MAE) were 1.1% for SpO2 and 1.4 beats per minute (bpm) for HR estimation using the testing dataset. MAE of systolic and diastolic BP were 5.1 mmHg and 7.5 mmHg, respectively. The possibility of using the smartphone as a fast alternative to conventional and specialized devices for SpO2, HR, and BP estimation was statistically proven.

English abstract

Smartphones can be used as multifunctional devices for instant monitoring of the users' health. In this study, we proposed methods for the estimation of heart rate (HR), blood oxygen saturation (SpO2), and blood pressure (BP). Two smartphone sensors were used for data recording: the rear camera and the microphone. Our approach for HR and SpO2 estimation was based on creating a photoplethysmogram (PPG) from the camera data. SpO2 estimation was improved and the smartphone quantum efficiency did not have to be known. BP was estimated using the pulse transit time value calculated from the PPG and phonocardiogram (PCG) recorded using the microphone. Fifty records (for HR and SpO2) and 15 records (for BP) were sensed and used for training and testing purposes. An Android (TM) application was developed to provide audio-visual feedback to the measured subject, to indicate whether the placement of the smartphone was appropriate to provide signals of sufficient quality for BP estimation. The mean absolute errors (MAE) were 1.1% for SpO2 and 1.4 beats per minute (bpm) for HR estimation using the testing dataset. MAE of systolic and diastolic BP were 5.1 mmHg and 7.5 mmHg, respectively. The possibility of using the smartphone as a fast alternative to conventional and specialized devices for SpO2, HR, and BP estimation was statistically proven.

Keywords

Heart rate; Blood oxygen saturation; Blood pressure; Photoplethysmogram; Health monitoring; Smartphone; Android application

Released

06.03.2020

Publisher

ELSEVIER SCI LTD

Location

OXFORD

ISBN

1746-8108

Periodical

Biomedical Signal Processing and Control

Year of study

59

Number

May 2020

State

GB

Pages from

1

Pages to

10

Pages count

10

URL

Documents

BibTex


@article{BUT164168,
  author="Andrea {Němcová} and Ivana {Jordánová} and Martin {Vařečka} and Radovan {Smíšek} and Lucie {Maršánová} and Lukáš {Smital} and Martin {Vítek}",
  title="Monitoring of heart rate, blood oxygen saturation, and blood pressure using a smartphone",
  annote="Smartphones can be used as multifunctional devices for instant monitoring of the users' health. In this study, we proposed methods for the estimation of heart rate (HR), blood oxygen saturation (SpO2), and blood pressure (BP). Two smartphone sensors were used for data recording: the rear camera and the microphone. Our approach for HR and SpO2 estimation was based on creating a photoplethysmogram (PPG) from the camera data. SpO2 estimation was improved and the smartphone quantum efficiency did not have to be known. BP was estimated using the pulse transit time value calculated from the PPG and phonocardiogram (PCG) recorded using the microphone. Fifty records (for HR and SpO2) and 15 records (for BP) were sensed and used for training and testing purposes. An Android (TM) application was developed to provide audio-visual feedback to the measured subject, to indicate whether the placement of the smartphone was appropriate to provide signals of sufficient quality for BP estimation. The mean absolute errors (MAE) were 1.1% for SpO2 and 1.4 beats per minute (bpm) for HR estimation using the testing dataset. MAE of systolic and diastolic BP were 5.1 mmHg and 7.5 mmHg, respectively. The possibility of using the smartphone as a fast alternative to conventional and specialized devices for SpO2, HR, and BP estimation was statistically proven.",
  address="ELSEVIER SCI LTD",
  chapter="164168",
  doi="10.1016/j.bspc.2020.101928",
  howpublished="online",
  institution="ELSEVIER SCI LTD",
  number="May 2020",
  volume="59",
  year="2020",
  month="march",
  pages="1--10",
  publisher="ELSEVIER SCI LTD",
  type="journal article in Web of Science"
}