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

香港中文大學研究人員

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摘要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 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.
著者Ma T, Zhang YT
會議名稱27th Annual International Conference of the IEEE-Engineering-in-Medicine-and-Biology-Society
會議開始日31.08.2005
會議完結日03.09.2005
會議地點Shanghai
會議國家/地區中國
期刊名稱PROCEEDINGS OF THE 20TH ANNUAL INTERNATIONAL CONFERENCE OF THE IEEE ENGINEERING IN MEDICINE AND BIOLOGY SOCIETY, VOL 20, PTS 1-6
詳細描述IEEE EMBS,
出版年份2005
月份1
日期1
出版社IEEE
頁次996 - 999
國際標準書號0-7803-8740-6
國際標準期刊號1094-687X
語言英式英語
Web of Science 學科類別Engineering; Engineering, Biomedical

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