Journal of Northeastern University Natural Science ›› 2018, Vol. 39 ›› Issue (12): 1702-1707.DOI: 10.12068/j.issn.1005-3026.2018.12.006

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Influence of Coronary Artery Stenosis on Transfer Function Between Peripheral and Central Arteries

ZHANG Liang-yu, BIAN Tian-yuan, XU Li-sheng   

  1. School of Sino-Dutch Biomedical and Information Engineering, Northeastern University, Shenyang 110169, China.
  • Received:2017-08-22 Revised:2017-08-22 Online:2018-12-15 Published:2018-12-19
  • Contact: XU Li-sheng
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Abstract: To observe the changes of central artery wave and explore the correlation between transfer function of peripheral and central artery and coronary artery stenosis in patients. Center artery and radial artery pulse wave before and after stent surgery from 9 patients with coronary artery stenosis were collected. ARX(auto-regressive with extra inputs) transfer function before and after stent surgery were established. Radial artery waveform after surgery was reconstructed with the transfer function model before and after surgery. Characteristic points of the two central arterial waveforms were extracted and the characteristic parameters K and t of the reconstructed two central arterial pressure were calculated. And then, the significant difference analysis of the measured central arterial pressure parameters was analyzed. The experimental results indicated that coronary artery stenosis has a certain impact on the transfer function, and clinical significance of the acute myocardial infarction in patients with acute illness cannot be reconstructed with a common transfer function of the central artery.

Key words: coronary artery stenosis, transfer function, radial artery waveform, central artery waveform, significant difference analysis

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