Dynamic analysis with a fractional-order chaotic system for estimation of peripheral arterial disease in diabetic foot

Chien Ming Li, Yi Chun Du, Jian Xing Wu, Chia Hung Lin, Yueh Ren Ho, Tainsong Chen

研究成果: Article同行評審

9 引文 斯高帕斯(Scopus)

摘要

Lower-extremity peripheral arterial disease (PAD) is caused by narrowing or occlusion of vessels in patients like type 2 diabetes mellitus, the elderly and smokers. Patients with PAD are mostly asymptomatic; typical early symptoms of this limb-threatening disorder are intermittent claudication and leg pain, suggesting the necessity for accurate diagnosis by invasive angiography and ankle-brachial pressure index. This index acts as a gold standard reference for PAD diagnosis and categorizes its severity into normal, low-grade and high-grade, with respective cut-off points of ≥0.9, 0.9-0.5 and <0.5. PAD can be assessed using photoplethysmography as a diagnostic screening tool, displaying changes in pulse transit time and shape, and dissimilarities of these changes between lower limbs. The present report proposed photoplethysmogram with fractional-order chaotic system to assess PAD in 14 diabetics and 11 healthy adults, with analysis of dynamic errors based on various butterfly motion patterns, and color relational analysis as classifier for pattern recognition. The results show that the classification of PAD severity among these testees was achieved with high accuracy and efficiency. This noninvasive methodology potentially provides timing and accessible feedback to patients with asymptomatic PAD and their physicians for further invasive diagnosis or strict management of risk factors to intervene in the disease progression.

原文English
文章編號085701
期刊Measurement Science and Technology
24
發行號8
DOIs
出版狀態Published - 2013 八月

All Science Journal Classification (ASJC) codes

  • 儀器
  • 工程(雜項)
  • 應用數學

指紋

深入研究「Dynamic analysis with a fractional-order chaotic system for estimation of peripheral arterial disease in diabetic foot」主題。共同形成了獨特的指紋。

引用此