Title
Characterization Study of Neck Photoplethysmography.
Abstract
This paper presents a comparison between finger and neck photoplethysmography (PPG) in order to assess the potential and limitations of this, non-conventionally used, body site for application in pulse oximetry. PPG signals were recorded at both sites from healthy subjects to inspect the differences in average waveforms, as well as in oxygen saturation (SpO) and heart rate (HR) estimation. The results show significant differences in the average PPG pulse waveforms for different contour features such as diastolic or dicrotic notch amplitude, among others. The results show that the HR estimated from signals obtained with the neck sensor are strongly correlated to the output of the reference finger (R=0.862, MAE=1.27 BPM), whereas SpO measurements are not that accurately predicted (R=0.129, MAE=11.7%). Spectrograms under different breathing conditions revealed that the respiratory frequency is more predominant in neck PPG than in finger, which has a great potential for respiratory rate (RR) extraction. These are very promising results for the suitability of the neck as an alternative location for monitoring of respiratory diseases, and specifically for sleep apnea.
Year
DOI
Venue
2018
10.1109/EMBC.2018.8513247
EMBC
Field
DocType
Volume
Sleep apnea,Diastole,Computer science,Pulse (signal processing),Artificial intelligence,Heart rate,Computer vision,Internal medicine,Photoplethysmogram,Cardiology,Respiratory rate,Breathing,Pulse oximetry
Conference
2018
Citations 
PageRank 
References 
0
0.34
0
Authors
3
Name
Order
Citations
PageRank
Irene Garcia-Lopez100.34
Syed Anas Imtiaz2226.03
E Rodriguez-Villegas310319.22