A correlation study on the variabilities in pulse transit time, blood pressure, and heart rate recorded simultaneously from healthy subjects
Refereed conference paper presented and published in conference proceedings


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AbstractThis 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 variabities, 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.
All Author(s) ListMa T, Zhang YT
Name of Conference27th Annual International Conference of the IEEE-Engineering-in-Medicine-and-Biology-Society
Start Date of Conference31/08/2005
End Date of Conference03/09/2005
Place of ConferenceShanghai
Country/Region of ConferenceChina
Journal namePROCEEDINGS OF THE 20TH ANNUAL INTERNATIONAL CONFERENCE OF THE IEEE ENGINEERING IN MEDICINE AND BIOLOGY SOCIETY, VOL 20, PTS 1-6
Detailed descriptionIEEE EMBS,
Year2005
Month1
Day1
PublisherIEEE
Pages996 - 999
ISBN0-7803-8740-6
ISSN1094-687X
LanguagesEnglish-United Kingdom
Web of Science Subject CategoriesEngineering; Engineering, Biomedical

Last updated on 2021-27-02 at 00:48