Title :
A Preliminary Study for Unconstrained Pulse Arrival Time (PAT) Measurement on a Chair
Author :
Kim, Ko Keun ; Chee, Youngjoon ; Park, Juwan ; Kim, Jungsoo ; Lim, Yong Kyu ; Park, Kwang Suk
Author_Institution :
Interdisciplinary Program in Med. & Biol. Eng., Seoul Nat. Univ.
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)
Keywords :
electrocardiography; plethysmography; PPG; R-peak; air cushion; balancing tubes; electrically noncontact ECG measurement system; pressure pulse; unconstrained pulse arrival time measurement; Arterial blood pressure; Arteries; Biomedical engineering; Biomedical measurements; Electric variables measurement; Electrocardiography; Extremities; Pressure measurement; Pulse measurements; Time measurement;
Conference_Titel :
Engineering in Medicine and Biology Society, 2005. IEEE-EMBS 2005. 27th Annual International Conference of the
Conference_Location :
Shanghai
Print_ISBN :
0-7803-8741-4
DOI :
10.1109/IEMBS.2005.1617253
