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A Study on Arterial Characterization by Photoplethysmography Analysis  

한상휘 (명지대학교 전자공학과)
변미경 (명지대학교 대학원 전자공학과)
김정국 (명지대학교 전자공학과)
허웅 (명지대학교 전자공학과)
Publication Information
Journal of the Institute of Electronics Engineers of Korea SC / v.41, no.5, 2004 , pp. 65-70 More about this Journal
Abstract
In this paper, we present a new methodology to analyze the characteristic of artery by using 4 channels photoplethysmograpy. The proposed parameter is a time difference of pulse transit time(PTT) between Pulse waves at finger site and at toe site. To verify the usefulness of the developed system volume pulse waves on 4 sites were measured simultaneously for total 51 normal subjects (male 26 and female 25) aged from 9 to 83 years old. And then correlations between the analysis parameters and age were evaluated by using linear regression analysis method. As the result of experiments, the change of parameter was found according to ages. The result of regression analysis about relationships between the parameter and ages for n=51, the coefficient of correlation of non-normalized data has 0.79770 in left side and 0.80599 in right side and the coefficient of correlation of normalized data by height has 0.81345 in left side and 0.81605 in right side.
Keywords
Photoplethysmography(PPG); Arterial Characteristic; Pulse Transit Time(PTT); Correlation;
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