標題: The interpretation of very high frequency band of instantaneous pulse rate variability during paced respiration
作者: Chang, Chia-Chi
Hsu, Hung-Yi
Hsiao, Tzu-Chien
分子醫學與生物工程研究所
資訊工程學系
友訊交大聯合研發中心
生醫電子轉譯研究中心
Institute of Molecular Medicine and Bioengineering
Department of Computer Science
D Link NCTU Joint Res Ctr
Biomedical Electronics Translational Research Center
關鍵字: Pulse rate variability;Hilbert-Huang transform;Empirical mode decomposition
公開日期: 21-四月-2014
摘要: Background: Pulse rate (PR) indicates heart beat rhythm and contains various intrinsic characteristics of peripheral regulation. Pulse rate variability (PRV) is a reliable method to assess autonomic nervous system function quantitatively as an effective alternative to heart rate variability. However, the frequency range of PRV is limited by the temporal resolution of PR based on heart rate and it is further restricted the exploration of optimal autoregulation frequency based on spectral analysis. Methods: Recently, a new novel method, called instantaneous PRV (iPRV), was proposed. iPRV breaks the limitation of temporal resolution and extends the frequency band. Moreover, iPRV provides a new frequency band, called very high frequency band (VHF; 0.4-0.9 Hz). Results: The results showed that the VHF indicated the influences of respiratory maneuvers (paced respiration at 6-cycle and 30-cycle) and the nonstationary condition (head-up tilt; HUT). Conclusions: VHF is as a potential indication of autoregulation in higher frequency range and with peripheral regulation. It helps for the frequency exploration of cardiovascular autoregulation.
URI: http://dx.doi.org/10.1186/1475-925X-13-46
http://hdl.handle.net/11536/24228
ISSN: 1475-925X
DOI: 10.1186/1475-925X-13-46
期刊: BIOMEDICAL ENGINEERING ONLINE
Volume: 13
Issue: 
結束頁: 
顯示於類別:期刊論文


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