Special Section Technical Briefs

Preliminary Results for Estimating Pulse Transit Time Using Seismocardiogram1

[+] Author and Article Information
Ajay K. Verma, Reza Fazel-Rezai, John M. Zanetti, Kouhyar Tavakolian

Department of Electrical Engineering,
University of North Dakota,
Grand Forks, ND 58202

Accepted and presented at The Design of Medical Devices Conference (DMD2015), April 13-16, 2015, Minneapolis, MN, USA.

Manuscript received March 3, 2015; final manuscript received March 16, 2015; published online April 24, 2015. Editor: Arthur Erdman.

J. Med. Devices 9(2), 020916 (Jun 01, 2015) (2 pages) Paper No: MED-15-1051; doi: 10.1115/1.4030124 History: Received March 03, 2015; Revised March 16, 2015; Online April 24, 2015

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Smith, R. P., Argod, J., Pépin, J., and Lévy, P. A., 1999, “Pulse Transit Time: An Appraisal of Potential Clinical Applications,” Thorax, 54(5), pp. 452–458. [CrossRef] [PubMed]
Zhang, G., Gao, M., Xu, D., Olivier, N. B., and Mukkamala, R., 2011, “Pulse Arrival Time Is Not an Adequate Surrogate for Pulse Transit Time as a Marker of Blood Pressure,” J. Appl. Physiol., 111(6), pp. 1681–1686. [CrossRef] [PubMed]
Zanetti, J. M., and Tavakolian, K., 2013, “Seismocardiography: Past, Present and Future,” 35th IEEE Engineering in Medicine and Biology Society Conference (EMBC), Osaka, Japan, July 3–7, pp. 7004–7007. [CrossRef]
Khosrow-Khavar, F., Tavakolian, K., Blaber, A. P., Zanetti, J. M., Fazel-Rezai, R., Member, S., and Menon, C., 2014, “Automatic Annotation of Seismocardiogram With High Frequency Precordial Accelerations,” IEEE J. Biomed. Health Inf. (published online). [CrossRef]
Verma, A. K., Cabrera, S. D., and Nazeran, H., 2014, “Spectral and Time-Domain Analysis of Heart Rate Variability Signals From Multiple PhotoPlethysmographic Sensors,” J. Miss. Acad. Sci., 59(S1), pp. 351–354.


Grahic Jump Location
Fig. 1

Simultaneously recorded PPG and SCG signals. AO on the SCG signal corresponds to the AO time and is used as the starting point to calculate PTT in milli-seconds (ms).

Grahic Jump Location
Fig. 2

Overall block diagram of processing algorithm

Grahic Jump Location
Fig. 3

SCG signal with locations of AO marked




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