CUFFLESS BLOOD PRESSURE ESTIMATION USING MAGNETIC FLUX IN A RING FORM FACTOR

Seyed Ali Ghazi Asgar, Kaan Sel, Anando Paul, Roderic I. Pettigrew, Roozbeh Jafari

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Smart rings represent a promising frontier in wearables for pervasive physiological health monitoring. They offer convenient and unobtrusive wear and reliable and firm contact with the finger for higher sensing fidelity. However, their use for monitoring complex physiological parameters with clinical use-cases, such as blood pressure (BP), still remains a challenge. While existing approaches including optical (e.g., PPG) and electrical (e.g., bio-impedance) modalities offer great promise, the direction to measure small mechanical movements of the skin due to blood volumetric changes and convert this to BP provides an exciting and complementary direction. Our Hall effect ring sensor can capture variations in magnetic flux due to the underlying pulsatile activity at digital arteries. We provide an end-to-end analysis to assess the performance of our smart rings in estimating BP. Our results indicate that we achieved a mean absolute error (MAE) of 4.79 mmHg and 2.61 mmHg for systolic and diastolic blood pressure, respectively, demonstrating the potential of this innovative design for clinical applications.

Original languageEnglish (US)
Title of host publication2024 IEEE International Conference on Acoustics, Speech, and Signal Processing, ICASSP 2024 - Proceedings
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages186-190
Number of pages5
ISBN (Electronic)9798350344851
DOIs
StatePublished - 2024
Event49th IEEE International Conference on Acoustics, Speech, and Signal Processing, ICASSP 2024 - Seoul, Korea, Republic of
Duration: Apr 14 2024Apr 19 2024

Publication series

NameICASSP, IEEE International Conference on Acoustics, Speech and Signal Processing - Proceedings
ISSN (Print)1520-6149

Conference

Conference49th IEEE International Conference on Acoustics, Speech, and Signal Processing, ICASSP 2024
Country/TerritoryKorea, Republic of
CitySeoul
Period4/14/244/19/24

Keywords

  • Cuffless Blood Pressure
  • Hall Sensor
  • Magnetic Flux
  • Smart Ring
  • Wearable Devices

ASJC Scopus subject areas

  • Software
  • Signal Processing
  • Electrical and Electronic Engineering

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