Computer Science ›› 2018, Vol. 45 ›› Issue (11A): 569-572.

• Interdiscipline & Application • Previous Articles     Next Articles

Long Term Memory Analysis of Relationship Between Pulse Transit Time and Blood Pressure

LI Han1,2, ZHAO Hai2, CHEN Xing-chi2, LIN Chuan2   

  1. School of Electronic and Information Engineering,Liaoning University of Technology,Jinzhou,Liaoning 121000,China1
    School of Computer Science & Engineering,Northeastern University,Shenyang 110819,China2
  • Online:2019-02-26 Published:2019-02-26

Abstract: Compared with the Korotkoff sound method,estimating blood pressure via pulse transit time is more portable and can be implemented for continuous measurement.However,the effective time of the linear equation established by the existing research is short,the mechanism of pulse transit time changing with the blood pressure needs further analysis.Based on 10 groups of data in MIMIC database,the relationship between blood pressure and pulse transit time was analyzed from the perspective of long-term memory,taking symbolization and complex network as the main research means.The degree distribution of the SBP network shows power-law characteristics,thus indicating the long term me-mory of the SBP-PTT time series.The node variation of the SBP network can be faster to achieve the saturation state compared with DBP network,which reflects the continuous influence of a certain core state on the SBP-PTT relationship.The results can provide a basis for the more accurate and noninvasive continuous measurement of blood pressure through the pulse wave transit time

Key words: Pulse wave transit time, Blood pressure, Complex network, Long term memory, Symbolization

CLC Number: 

  • TP399
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