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Journal of Biomedical Optics

Pulse transit time differential measurement by fiber Bragg grating pulse recorder
Author(s): Sharath Umesh; Srivani Padma Goggi; Shikha Ambastha; Anand Kalegowda; Sundarrajan Asokan
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Paper 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.

Paper Details

Date Published: 28 May 2015
PDF: 7 pages
J. Biomed. Opt. 20(5) 057005 doi: 10.1117/1.JBO.20.5.057005
Published in: Journal of Biomedical Optics Volume 20, Issue 5
Show Author Affiliations
Sharath Umesh, Indian Institute of Science (India)
Srivani Padma Goggi, Indian Institute of Science (India)
Indian Institute of Science (India)
Shikha Ambastha, Indian Institute of Science (India)
Anand Kalegowda, M S Ramaiah Institute of Technology (India)
Sundarrajan Asokan, Indian Institute of Science (India)
Indian Institute of Science (India)

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