Application of Van der Pol oscillator screening for peripheral arterial disease in patients with diabetes mellitusReport as inadecuate




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Thispaper proposes a Van der Pol VDP oscillator screening for peripheral arterialdisease PAD in patients with diabetes mellitus. The long-term elevated bloodsugar levels produce a high risk of peripheral neuropathy and peripheralvascular disease, especially in the foot of a diabetic. Early detection isimportant, in order to prevent foot problems for diabetic patients with PAD. Photoplethysmography PPG is anon-invasive method for the detection of blood volume changes in peripheralarteries. Because of changes in the resistance-compliance, the rise time and transittime for the PPG signals increase and change in their shape are highlycorrelated with PAD severity. In this study, the Burg autoregressive ARmethod is used to determine the characteristic frequencies of the right-andleft-side PPG signals. For bilateral frequency spectra, the VDP oscillator usesasynchronous signals. This produces damped sinusoidal responses and theoscillation overshoot OS is an approximating function only of the damped factor.This index is used to estimate thedegree of PAD, including normal the condition and diabetic patients withPAD. The results show that theproposed method is efficient and more accurate in the estimation of PAD.

 

KEYWORDS

Van der Pol VDP Oscillator; Peripheral Arterial Disease PAD; Burg Autoregressive Method; Oscillation Overshoot

Cite this paper

Wu, J. , Li, C. , Chen, W. , Lin, C. and Chen, T. 2013 Application of Van der Pol oscillator screening for peripheral arterial disease in patients with diabetes mellitus. Journal of Biomedical Science and Engineering, 6, 1143-1154. doi: 10.4236-jbise.2013.612143.





Author: Jianxing Wu, Chianming Li, Weiling Chen, Chiahung Lin, Tainsong Chen

Source: http://www.scirp.org/



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