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KMID : 1137820170380030095
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의공학회지
2017 Volume.38 No. 3 p.95 ~ p.101
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A Study on Relations of Peripheral Arterial Disease Marker and Photoplethysmography Measured from the Lower Limb
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Im Ji-Hyeon
Heo Jung-Hyun
Yoon Young-Ro
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Abstract
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In this study, photoplethysmography(PPG) was suggested as a way to replace the ankle-brachial index(ABI) in diagnosing PAD. The method using the PPG was presented for the simplification of the PAD diagnosis method which was used before. And the index related to the health condition of the artery from the PPG measured in both big toes of the subjects through the experiment was drawn. The indexes showing the significant relativeness in the Pearson correlation analysis with the ABI were the stiffness index(SI), reflection index(RI); it was confirmed each of them had the correlation coefficient of 0.688, and 0.637 at p < 0.05. The explanation ability of the linear regression equation derived using ABI, SI and RI was 52.5%. The explanation ability of the secondary curve regression equation derived using ABI, squared SI was 54.7%. It is expected to provide patients with significant results and draw the index associated with PAD by measuring PPG easily in the real life instead of the ambulatory care field.
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KEYWORD
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peripheral arterial disease(PAD), photoplethysmography(PPG), second derivative photoplethysmography(SDPTG), stiffness index(SI), reflection index(RI)
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