Title
Pulse Harmonic Strength of facial video signal for the detection of atrial fibrillation
Abstract
It is estimated that 3.2 million people have developed atrial fibrillation (AF) in the United States and 30% of AF patients are unaware of their diagnosis (silent AF). We tested a new technology for contactless detection of AF based on facial video recordings in patients undergoing electrical cardioversion for AF. The proposed technique uses the facial video signal to extract the beat-to-beat variations of the skin color reflecting the cardiac pulsatile signal. We developed the concept of Pulse Harmonic Strength (PHS) to capture AF patterns from this signal. Also, we quantified the variability of the heart rate and pulse rate using additional measurements of heart rate variability. Eleven subjects (65±6 years, 8 males) were enrolled in the study and 407 epochs of 15 sec. were acquired simultaneously with ECG and facial video signals. PHS was associated with a 20% detection error rate of AF in reference to human interpretation while the error rates of the automatic ECG-based measurements ranged between 17% and 29% across the investigated HRV parameters.
Year
Venue
Keywords
2014
CinC
bioelectric potentials,electrocardiography,medical disorders,medical signal processing,plethysmography,video signal processing,af patient diagnosis,af patterns,hrv parameters,atrial fibrillation detection,automatic ecg-based measurements,cardiac pulsatile signal,contactless detection,detection error rate,electrical cardioversion,facial video signal recordings,heart rate variability measurements,pulse harmonic strength,pulse rate variability measurements,skin color reflecting,color,heart
Field
DocType
Volume
Atrial fibrillation,Pulsatile flow,Heart rate variability,Internal medicine,Word error rate,Cardiology,Harmonic,Pulse (signal processing),Heart rate,Electrocardiography,Medicine
Conference
41
ISSN
Citations 
PageRank 
2325-8861
1
0.35
References 
Authors
1
7
Name
Order
Citations
PageRank
Jean-Philippe Couderc1436.67
survi kyal2262.62
lalit keshav mestha3203.56
Beilei Xu474.69
derick r peterson510.35
xiaojuan xia610.35
b hall720.74