Can the timing-characteristics of phonocardiographic signal be used for cuffless systolic blood pressure estimation?

M. Y.M. Wong; C. C.Y. Poon; Y. T. Zhang

doi:10.1109/IEMBS.2006.259873

Can the timing-characteristics of phonocardiographic signal be used for cuffless systolic blood pressure estimation?

M. Y.M. Wong, C. C.Y. Poon, Y. T. Zhang^*

^*Corresponding author for this work

Research output: Chapters, Conference Papers, Creative and Literary Works › RGC 32 - Refereed conference paper (with host publication) › peer-review

10 Citations (Scopus)

Abstract

Continuous and non-invasive measurement of blood pressure (BP) is always important to critically ill patients. To achieve continuous and cuffless BP monitoring, pulse transit time (PTT) has been reported as a potential parameter. Recently a novel parameter RS₂ (defined as the time interval measured from the R wave of electrocardiographic (ECG) signal to the peak of second heart sound of phonocardiographic (PCG) signal) is proposed for the same purpose.
In this study, the relationship between systolic BP (SBP) and PTT as well as the relationship between SBP and RS₂ on 25 healthy subjects, aged 24±3 years, were compared after exercise. The results in current study showed that SBP is correlated with both PTT and RS₂, where the mean individual correlations are r=-0.95 and r=-0.85 respectively. The mean standard deviation of the differences between the measured SBP and the SBP predicted from the regression lines in scatter plots of SBP-PTT and SBP-RS ₂ are 4.1 mmHg and 7.2 mmHg respectively. In summary, the results showed that RS₂ is possible to be used for continuous and non-invasive monitoring of SBP after exercise. In the future, it is important to investigate more robust techniques for locating characteristic points on the PCG signals.

Original language	English
Title of host publication	Proceedings of the 28th Annual International Conference of the IEEE Engineering in Medicine and Biology Society
Publisher	IEEE
Pages	2878-2879
ISBN (Print)	1-4244-0032-5
DOIs	https://doi.org/10.1109/IEMBS.2006.259873
Publication status	Published - Aug 2006
Externally published	Yes
Event	28^th Annual International Conference of the IEEE Engineering in Medicine and Biology Society (EMBS 2006) - New York, United States Duration: 30 Aug 2006 → 3 Sept 2006

Publication series

Name	Annual International Conference of the IEEE Engineering in Medicine and Biology - Proceedings
ISSN (Print)	0589-1019

Conference

Conference	28^th Annual International Conference of the IEEE Engineering in Medicine and Biology Society (EMBS 2006)
Abbreviated title	EMBS 2006
Place	United States
City	New York
Period	30/08/06 → 3/09/06

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Wong, M. Y. M., Poon, C. C. Y., & Zhang, Y. T. (2006). Can the timing-characteristics of phonocardiographic signal be used for cuffless systolic blood pressure estimation? In Proceedings of the 28th Annual International Conference of the IEEE Engineering in Medicine and Biology Society (pp. 2878-2879). Article 4030292 (Annual International Conference of the IEEE Engineering in Medicine and Biology - Proceedings). IEEE. https://doi.org/10.1109/IEMBS.2006.259873

Wong, M. Y.M. ; Poon, C. C.Y. ; Zhang, Y. T. / Can the timing-characteristics of phonocardiographic signal be used for cuffless systolic blood pressure estimation?. Proceedings of the 28th Annual International Conference of the IEEE Engineering in Medicine and Biology Society. IEEE, 2006. pp. 2878-2879 (Annual International Conference of the IEEE Engineering in Medicine and Biology - Proceedings).

@inproceedings{c1a37f3bc8d849ee82074862015aa93e,

title = "Can the timing-characteristics of phonocardiographic signal be used for cuffless systolic blood pressure estimation?",

abstract = "Continuous and non-invasive measurement of blood pressure (BP) is always important to critically ill patients. To achieve continuous and cuffless BP monitoring, pulse transit time (PTT) has been reported as a potential parameter. Recently a novel parameter RS2 (defined as the time interval measured from the R wave of electrocardiographic (ECG) signal to the peak of second heart sound of phonocardiographic (PCG) signal) is proposed for the same purpose. In this study, the relationship between systolic BP (SBP) and PTT as well as the relationship between SBP and RS2 on 25 healthy subjects, aged 24±3 years, were compared after exercise. The results in current study showed that SBP is correlated with both PTT and RS2, where the mean individual correlations are r=-0.95 and r=-0.85 respectively. The mean standard deviation of the differences between the measured SBP and the SBP predicted from the regression lines in scatter plots of SBP-PTT and SBP-RS 2 are 4.1 mmHg and 7.2 mmHg respectively. In summary, the results showed that RS2 is possible to be used for continuous and non-invasive monitoring of SBP after exercise. In the future, it is important to investigate more robust techniques for locating characteristic points on the PCG signals. ",

author = "Wong, {M. Y.M.} and Poon, {C. C.Y.} and Zhang, {Y. T.}",

year = "2006",

month = aug,

doi = "10.1109/IEMBS.2006.259873",

language = "English",

isbn = "1-4244-0032-5",

series = "Annual International Conference of the IEEE Engineering in Medicine and Biology - Proceedings",

publisher = "IEEE",

pages = "2878--2879",

booktitle = "Proceedings of the 28th Annual International Conference of the IEEE Engineering in Medicine and Biology Society",

address = "United States",

note = "28<sup>th</sup> Annual International Conference of the IEEE Engineering in Medicine and Biology Society (EMBS 2006), EMBS 2006 ; Conference date: 30-08-2006 Through 03-09-2006",

}

Wong, MYM, Poon, CCY & Zhang, YT 2006, Can the timing-characteristics of phonocardiographic signal be used for cuffless systolic blood pressure estimation? in Proceedings of the 28th Annual International Conference of the IEEE Engineering in Medicine and Biology Society., 4030292, Annual International Conference of the IEEE Engineering in Medicine and Biology - Proceedings, IEEE, pp. 2878-2879, 28^th Annual International Conference of the IEEE Engineering in Medicine and Biology Society (EMBS 2006), New York, United States, 30/08/06. https://doi.org/10.1109/IEMBS.2006.259873

Can the timing-characteristics of phonocardiographic signal be used for cuffless systolic blood pressure estimation? / Wong, M. Y.M.; Poon, C. C.Y.; Zhang, Y. T.
Proceedings of the 28th Annual International Conference of the IEEE Engineering in Medicine and Biology Society. IEEE, 2006. p. 2878-2879 4030292 (Annual International Conference of the IEEE Engineering in Medicine and Biology - Proceedings).

Research output: Chapters, Conference Papers, Creative and Literary Works › RGC 32 - Refereed conference paper (with host publication) › peer-review