Table of Contents Author Guidelines Submit a Manuscript
Complexity
Volume 2018 (2018), Article ID 6898024, 6 pages
https://doi.org/10.1155/2018/6898024
Research Article

Using Complexity and Spectral Analyses of Noninvasive LDF Signals in Patients with Metabolic Syndrome

1Graduate Institute of Biomedical Engineering, National Taiwan University of Science and Technology, Taipei, Taiwan
2Department of Emergency Medicine, Tri-Service General Hospital, National Defense Medical Center, Taipei, Taiwan
3Department of Family & Community Medicine, Tri-Service General Hospital, National Defense Medical Center, Taipei, Taiwan

Correspondence should be addressed to Hsin Hsiu; wt.ude.tsutn.liam@uishh

Received 13 September 2017; Revised 25 December 2017; Accepted 17 January 2018; Published 25 February 2018

Academic Editor: Arturo Buscarino

Copyright © 2018 Hsin Hsiu et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Linked References

  1. S. Czernichow, J. R. Greenfield, P. Galan et al., “Macrovascular and microvascular dysfunction in the metabolic syndrome,” Hypertension Research, vol. 33, no. 4, pp. 293–297, 2010. View at Publisher · View at Google Scholar · View at Scopus
  2. G. Walther, P. Obert, F. Dutheil et al., “Metabolic syndrome individuals with and without type 2 diabetes mellitus present generalized vascular dysfunction: Cross-sectional study,” Arteriosclerosis, Thrombosis, and Vascular Biology, vol. 35, no. 4, pp. 1022–1029, 2015. View at Publisher · View at Google Scholar · View at Scopus
  3. A. I. Vinik, M. Nevoret, C. Casellini, and H. Parson, “Neurovascular function and sudorimetry in health and disease,” Current Diabetes Reports, vol. 13, no. 4, pp. 517–532, 2013. View at Publisher · View at Google Scholar · View at Scopus
  4. H. Hsiu, H. F. Hu, G. S. Wu, and F. C. Hsiao, “Characteristics in the beat-to-beat laser-Doppler waveform indices in subjects with diabetes,” Clinical Hemorheology and Microcirculation, vol. 57, no. 4, pp. 375–384, 2014. View at Google Scholar
  5. C.-T. Chen, H. Hsiu, J.-S. Fan, F.-C. Lin, and Y.-T. Liu, “Complexity analysis of beat-to-beat skin-surface laser-doppler flowmetry signals in stroke patients,” Microcirculation, vol. 22, no. 5, pp. 370–377, 2015. View at Publisher · View at Google Scholar · View at Scopus
  6. H.-F. Hu, H. Hsiu, C.-J. Sung, and C.-H. Lee, “Combining laser-Doppler flowmetry measurements with spectral analysis to study different microcirculatory effects in human prediabetic and diabetic subjects,” Lasers in Medical Science, vol. 32, no. 2, pp. 327–334, 2017. View at Publisher · View at Google Scholar · View at Scopus
  7. A. Stefanovska, M. Bracic, and H. D. Kvernmo, “Wavelet analysis of oscillations in the peripheral blood circulation measured by laser Doppler technique,” IEEE Transactions on Biomedical Engineering, vol. 46, no. 10, pp. 1230–1239, 1999. View at Publisher · View at Google Scholar · View at Scopus
  8. P.-C. Sun, C.-S. Chen, C.-D. Kuo et al., “Impaired microvascular flow motion in subclinical diabetic feet with sudomotor dysfunction,” Microvascular Research, vol. 83, no. 2, pp. 243–248, 2012. View at Publisher · View at Google Scholar · View at Scopus
  9. A. P. Blaber, R. L. Bondar, F. Stein et al., “Complexity of middle cerebral artery blood flow velocity: Effects of tilt and autonomic failure,” American Journal of Physiology-Heart and Circulatory Physiology, vol. 273, no. 5, pp. H2209–H2216, 1997. View at Publisher · View at Google Scholar · View at Scopus
  10. F. Liao, D. W. Garrison, and Y.-K. Jan, “Relationship between nonlinear properties of sacral skin blood flow oscillations and vasodilatory function in people at risk for pressure ulcers,” Microvascular Research, vol. 80, no. 1, pp. 44–53, 2010. View at Publisher · View at Google Scholar · View at Scopus
  11. H. Hsiu, W.-C. Hsu, C.-L. Hsu, J.-G. Bau, C.-T. Chen, and Y.-S. Liu, “Complexity analysis of the microcirculatory-blood-flow response following acupuncture stimulation,” Microvascular Research, vol. 89, pp. 34–39, 2013. View at Publisher · View at Google Scholar · View at Scopus
  12. H. Hsiu, W.-C. Hsu, C.-L. Hsu, and J.-G. Bau, “Microcirculatory complexity responses to the application of skin-surface-contacting pressure stimulation around normal blood pressure,” Journal of Medical and Biological Engineering, vol. 34, no. 2, pp. 164–171, 2014. View at Publisher · View at Google Scholar · View at Scopus
  13. S. M. Pincus, “Approximate entropy as a measure of system complexity,” Proceedings of the National Acadamy of Sciences of the United States of America, vol. 88, no. 6, pp. 2297–2301, 1991. View at Publisher · View at Google Scholar · View at MathSciNet · View at Scopus
  14. H. Hsiu, W.-C. Hsu, Y.-F. Wu, C.-L. Hsu, and C.-Y. Chen, “Differences in the skin-surface laser doppler signals between polycystic ovary syndrome and normal subjects,” Microcirculation, vol. 21, no. 2, pp. 124–130, 2014. View at Publisher · View at Google Scholar · View at Scopus
  15. R. B. Panerai, “Complexity of the human cerebral circulation,” Philosophical Transactions of the Royal Society A: Mathematical, Physical & Engineering Sciences, vol. 367, no. 1892, pp. 1319–1336, 2009. View at Publisher · View at Google Scholar
  16. L. G. Kraemer-Aguiar, C. M. Laflor, and E. Bouskela, “Skin microcirculatory dysfunction is already present in normoglycemic subjects with metabolic syndrome,” Metabolism, vol. 57, no. 12, pp. 1740–1746, 2008. View at Publisher · View at Google Scholar · View at Scopus
  17. H. Hsiu, C.-L. Hsu, and M.-Y. Jan, “Relations between beat-to-beat microcirculatory blood flow and variations therein,” Photomedicine and Laser Surgery, vol. 28, no. 6, pp. 785–792, 2010. View at Publisher · View at Google Scholar · View at Scopus
  18. H. Hsiu, S.-M. Huang, and T.-L. Hsu, “Evaluation of the function of arteriolar opening by variability in microcirculatory blood flow following angiotensin II administration in rats,” Biorheology, vol. 47, no. 3-4, pp. 239–253, 2010. View at Publisher · View at Google Scholar · View at Scopus
  19. H. Hsiu, C. L. Hsu, H.-F. Hu, F.-C. Hsiao, and S.-H. Yang, “Complexity analysis of beat-to-beat skin-surface laser-Doppler signals in diabetic subjects,” Microvascular Research, vol. 93, pp. 9–13, 2014. View at Publisher · View at Google Scholar · View at Scopus