Publications by authors named "B R Hayes-Gill"
Objective: The detection of arterial pulsating signals at the skin periphery with Photoplethysmography (PPG) are easily distorted by motion artifacts. This work explores the alternatives to the aid of PPG reconstruction with movement sensors (accelerometer and/or gyroscope) which to date have demonstrated the best pulsating signal reconstruction.
Approach: A generative adversarial network with fully connected layers (FC-GAN) is proposed for the reconstruction of distorted PPG signals.
A respiration rate (RR) monitoring system was created by integrating a Fibre Bragg Grating (FBG) optical fibre sensor into a respirator mask. The system exploits the sensitivity of an FBG to temperature to identify an individual's RR by measuring airflow temperature variation near the nostrils and mouth. To monitor the FBG response, a portable, battery-powered, wireless miniature interrogator system was developed to replace a relatively bulky benchtop interrogator used in previous studies.
View Article and Find Full Text PDFObjective: Establish whether pregnancies complicated by gestational diabetes mellitus (GDM) are associated with a fetal cardiac phenotype that predisposes to arrhythmia; utilising measurements derived from non-invasive abdominal fetal ECG.
Design: Prospective observational study.
Setting: Three tertiary obstetric units, United Kingdom.
Article Synopsis
- - The study explored the effectiveness of measuring heart rate (HR) and oxygen saturation (SpO) on newborns' foreheads compared to traditional wrist sensors during their first 10 minutes of life.
- - Results showed that forehead sensors had a higher success rate for HR readings (100%) and better agreement with ECG data than wrist sensors (69%).
- - The forehead measurements also provided consistently higher SpO values than the wrist methods, indicating the potential benefits of using forehead monitoring in clinical settings.
Significance: Our goal is to understand the root cause of reported oxygen saturation ( ) overestimation in heavily pigmented skin types to devise solutions toward enabling equity in pulse oximeter designs.
Aim: We aim to gain theoretical insights into the effect of skin tone on curves using a three-dimensional, four-layer tissue model representing a finger.
Approach: A finger tissue model, comprising the epidermis, dermis, two arteries, and a bone, was developed using a Monte Carlo-based approach in the MCmatlab software.