Proceedings ArticleDOI
Reflectance Pulse Oximetry for Blood Oxygen Saturation Measurement from Diverse Locations-A Preliminary Analysis
A Kiruthiga,Alex Annamol,T Balamugesh,R Dinesh Prabhu,D J Christopher,S P Preejith,Joseph Jayaraj,Sivaprakasam Mohanasankar +7 more
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TLDR
The preliminary analysis of beat to beat reflectance PPG signal from finger, forehead, wrist and chest concur well with the reference measurement and gives enough scope to measure SpO2 from various measurement sites like finger, forearm, wrist, chest and chest.Abstract:
Blood oxygen saturation level (SpO 2 ) is a clinically accepted vital sign for patient care and diagnostics. Oximeters are widely used by people suffering from asthma, congestive heart failures and pulmonary disorders as part of their routine care. Transmittance and reflectance pulse oximeters play a pivotal role in patient care and clinical decision making. In this paper, we study the feasibility of using reflectance photo plethysmography (PPG) for SpO 2 monitoring from various measurement sites on body. A preliminary study was conducted in a clinical setting on 10 subjects with pulmonary disorders. Arterial blood gas (ABG) analysis was used as a reference measure in the study. An SpO 2 data acquisition platform was developed, which uses custom-made dual wavelength reflectance SpO 2 sensor probes, Nellcor™ transmittance probe for beat to beat SpO 2 measurement. The preliminary analysis of beat to beat reflectance PPG signal from finger, forehead, wrist and chest concur well with the reference measurement and gives enough scope to measure SpO 2 from various measurement sites like finger, forehead, wrist and chest.read more
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Journal ArticleDOI
A Comparison of Reflective Photoplethysmography for Detection of Heart Rate, Blood Oxygen Saturation, and Respiration Rate at Various Anatomical Locations.
Sally K. Longmore,Gough Yumu Lui,Ganesh R. Naik,Paul P. Breen,Bin Jalaludin,Gaetano D. Gargiulo +5 more
TL;DR: The finger was found to be the best location for measurement of all three parameters at rest; however, no site was identified as capable of measuring all parameters while walking.
Proceedings ArticleDOI
Machine Learning based SpO 2 Computation Using Reflectance Pulse Oximetry
Swaathi Venkat,Mohamed Tanveejul Arsath Ps,Annamol Alex,S P Preejith,Balamugesh,Christopher Dj,Jayaraj Joseph,Mohanasankar Sivaprakasam +7 more
TL;DR: The proposed model overcomes the limitations imposed by the traditional R-value based calibration method through the use of a machine learning model using various time and frequency domain features.
Journal ArticleDOI
Commercial smartwatch with pulse oximeter detects short-time hypoxemia as well as standard medical-grade device: Validation study
TL;DR: Apple Watch Series 6 can reliably detect states of reduced blood oxygen saturation with SpO2 below 90% when compared to a medical-grade pulse oximeter, and the technology used in this smartwatch is sufficiently advanced for the indicative measurement ofSpO2 outside the clinic.
Proceedings ArticleDOI
HealthyLungs: Mobile Applications for Round-the-Clock Remote Monitoring of Lung Function in Patients with COVID-19
TL;DR: In this paper, the authors proposed smartphone applications that allow doctors to continuously observe the main organ of patients, affected by the coronavirus, -the lungs, regardless of their location.
Proceedings ArticleDOI
A Study on the Subject and Location Specificity in Reflectance based SpO 2 Estimation using R-value based Calibration Curve
Arsath P. S Mohamed Tanveejul,Annamol Alex,S P Preejith,D J Christopher,Balamugesh,Sujith J Chandy,Jayaraj Joseph,Mohanasankar Sivaprakasam +7 more
TL;DR: The analysis carried out shows that the usage of a generic R-value based calibration model for computing SpO2 using reflectance PPG signals from various measurement sites is an erroneous approach.
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Journal ArticleDOI
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