Calculation and Validation of Continuous Pulse Transit Time based on Normalized Pulse Wave Velocity
- Authors
- Shin, Hangsik; Choi, Ahyoung
- Issue Date
- Dec-2020
- Publisher
- IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
- Keywords
- Band-pass filters; Blood pressure; Blood pressure; Correlation; Delays; Electrocardiography; Fingers; photoplethysmography; Pressure measurement; pulse transit time; pulse-wave velocity
- Citation
- IEEE Access, v.8, pp.221632 - 221639
- Journal Title
- IEEE Access
- Volume
- 8
- Start Page
- 221632
- End Page
- 221639
- URI
- https://scholarworks.bwise.kr/gachon/handle/2020.sw.gachon/79682
- DOI
- 10.1109/ACCESS.2020.3041498
- ISSN
- 2169-3536
- Abstract
- Typically, the pulse transit time (PTT) is extracted as a discrete value per heartbeat: it is calculated as the time difference between specific points of the pulse waveforms measured at two different sites. However, this is not a perfect representation because a pulse wave propagates continuously. In this study, we propose a method to determine the continuous PTT (CPTT) by calculating consecutive time delays of photoplethysmography (PPG) waveforms measured at the fingers and toes of 14 young, healthy volunteers. The proposed CPTT is calculated as the average time delay determined by moving the segmented PPGs and has a correlation of 0.744 with conventional PTT. In addition, the proposed CPTT showed a -0.712 correlation coefficient (P < 0.001) with the continuous pulse-wave velocity derived from the continuous blood pressure waveform. These results suggest that the proposed CPTT is a promising indicator for pulse-wave velocity estimation. CCBY
- Files in This Item
- There are no files associated with this item.
- Appears in
Collections - IT융합대학 > 소프트웨어학과 > 1. Journal Articles
![qrcode](https://api.qrserver.com/v1/create-qr-code/?size=55x55&data=https://scholarworks.bwise.kr/gachon/handle/2020.sw.gachon/79682)
Items in ScholarWorks are protected by copyright, with all rights reserved, unless otherwise indicated.