학술논문
Pulse Photopletismography Amplitude Decrease Detector for Sleep Apnea Evaluation in Children
Document Type
Conference
Author
Source
2005 IEEE Engineering in Medicine and Biology 27th Annual Conference Engineering in Medicine and Biology Society, 2005. IEEE-EMBS 2005. 27th Annual International Conference of the. :2743-2746 2005
Subject
Language
ISSN
1094-687X
1558-4615
1558-4615
Abstract
A method for automatic detection of sleep apnea using pulse photopletismography signal (PPG) is proposed. This method is based on a detection of decreases on PPG amplitude fluctuations. The proposed detector is composed of three stages: pre-processing, envelope detection, based on root mean square series or Hilbert transform, and decision algorithm based on an adaptive threshold. The detector has been evaluated using simulated and real signals. Sensibility and positive predictive value of the detector where 76% and 73% for real signals. A clinical study to sleep apnea diagnosis in children based on this detector has been carried out. PPG attenuation events per hour ratio Eh has statistical significance (p < 0.05) to classify children as normal 13.5 ± 6.35 E h (mean ± SD) or pathologic 21.1 ± 8.93 E h .