NDLI: A Correlation Study on the Variabilities in Pulse Transit Time, Blood Pressure, and Heart Rate Recorded Simultaneously from Healthy Subjects

Content Provider	IEEE Xplore Digital Library
Author	Ma, T. Zhang, Y.T.
Copyright Year	2005
Description	Author affiliation: Joint Res. Centre for Biomed. Eng., Chinese Univ. of Hong Kong, Shatin (Ma, T.; Zhang, Y.T.)
Abstract	This paper proposes to use the pulse transit time variability (PTTV) as an indicator of the variability in hemodynamics and studies its correlation with other cardiovascular variabilities, especially the blood pressure variability (BPV), which receives increasing attentions as an independent indicator of autonomic regulation and abnormalities in cardiovascular system. Continuous blood pressure (BP), electrocardiogram (ECG), and photoplethysmographic (PPG) signal were collected simultaneously from 11 healthy subjects in resting state. Two types of pulse transit time (PTT), defined by different characteristic points of ECG and PPG signals, were measured beat by beat noninvasively. Correlation coefficient was employed to quantify the relationship between the beat-to-beat variabilities in any pair of the target cardiovascular parameters. Significant correlations were consistently observed among the variabilities in systolic BP, pulse BP and PTTf , which was defined as the time interval between the peak of ECG R-wave and the frontal foot of the PPG pulse within the same cardiac cycle. The results of this study indicate that variability in PTTf is highly associated with that in BP and can be potentially used for BPV estimation for healthy subjects at static body state
Starting Page	996
Ending Page	999
File Size	269334
Page Count	4
File Format	PDF
ISBN	0780387414
DOI	10.1109/IEMBS.2005.1616585
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2006-01-17
Publisher Place	China
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Blood pressure Heart rate Electrocardiography Cardiology Pulse measurements Hemodynamics Blood pressure variability Cardiovascular system Time measurement Foot
Content Type	Text
Resource Type	Article

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