Pulse transit time differential measurement by fiber Bragg grating pulse recorder

Sharath Umesh; Srivani Padma Goggi; Shikha Ambastha; Anand Kalegowda; Sundarrajan Asokan

doi:10.1117/1.JBO.20.5.057005

28 May 2015 Pulse transit time differential measurement by fiber Bragg grating pulse recorder

Sharath Umesh, Srivani Padma Goggi, Shikha Ambastha, Anand Kalegowda, Sundarrajan Asokan

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Journal of Biomedical Optics, Vol. 20, Issue 5, 057005 (May 2015). https://doi.org/10.1117/1.JBO.20.5.057005

Abstract

The present study reports a noninvasive technique for the measurement of the pulse transit time differential (PTTD) from the pulse pressure waveforms obtained at the carotid artery and radial artery using fiber Bragg grating pulse recorders (FBGPR). PTTD is defined as the time difference between the arrivals of a pulse pressure waveform at the carotid and radial arterial sites. The PTTD is investigated as an indicator of variation in the systolic blood pressure. The results are validated against blood pressure variation obtained from a Mindray Patient Monitor. Furthermore, the pulse wave velocity computed from the obtained PTTD is compared with the pulse wave velocity obtained from the color Doppler ultrasound system and is found to be in good agreement. The major advantage of the PTTD measurement via FBGPRs is that the data acquisition system employed can simultaneously acquire pulse pressure waveforms from both FBGPRs placed at carotid and radial arterial sites with a single time scale, which eliminates time synchronization complexity.

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Sharath Umesh, Srivani Padma Goggi, Shikha Ambastha, Anand Kalegowda, and Sundarrajan Asokan "Pulse transit time differential measurement by fiber Bragg grating pulse recorder," Journal of Biomedical Optics 20(5), 057005 (28 May 2015). https://doi.org/10.1117/1.JBO.20.5.057005

Published: 28 May 2015

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