A Preliminary Study for Unconstrained Pulse Arrival Time (PAT) Measurement on a Chair

Ko Keun Kim; Youngjoon Chee; Juwan Park; Jungsoo Kim; Yong Kyu Lim; Kwang Suk Park

doi:10.1109/IEMBS.2005.1617253

A Preliminary Study for Unconstrained Pulse Arrival Time (PAT) Measurement on a Chair

Conf Proc IEEE Eng Med Biol Soc. 2005:2005:3578-9. doi: 10.1109/IEMBS.2005.1617253.

Authors

Ko Keun Kim¹, Youngjoon Chee, Juwan Park, Jungsoo Kim, Yong Kyu Lim, Kwang Suk Park

Affiliation

¹ Interdisciplinary Program in Medical and Biological Engineering, Seoul National University, Republic of Korea.

PMID: 17280998
DOI: 10.1109/IEMBS.2005.1617253

Abstract

A method of measuring the pulse arrival time (PAT) non-consciously on a chair is proposed. In this method, the electrically non-contact ECG measurement system and the air cushion with balancing tubes are used. In this paper, the correlation between the typical PAT and the unconstrained PATs (A-PATs) are compared. The typical PAT is measured as the difference of R-peak of ECG and the steepest descent point of the PPG in toe. The three different A-PATs were measured from the pressure pulse of the air cushion (APP). The correlation between the typical PAT and the A-PAT from the steepest descent point of the APP was the highest (R=0.9663).