Estimation of systolic blood pressure variations from pulse arrival time using a narrow-band filter

Author

Chen, W. ; Kobayashi, T. ; Togawa, T. ; Ichikawa, S. ; Takeuchi, Y.

Author_Institution

Dept. of Bioeng., Soka Univ., Tokyo, Japan

Volume

1

fYear

1999

fDate

1999

Abstract

A narrow-band filtering method was explored to improve the correlation between systolic blood pressure (SEP) and pulse arrival time (PAT). The raw correlation coefficients among them on 15 subjects vary from 0.19 to 0.95. When the uncorrelated components in both signals were suppressed, the remained narrow-band components showed a fairly good linear correlation. The average correlation coefficient was up to 0.87 from 0.69, and the most striking one reached 0.99. The study implies that the narrow-band PAT may be used as a promising indicator of detecting the changes in systolic blood pressure and other physiological characteristics

Keywords

blood pressure measurement; correlation methods; filtering theory; medical signal processing; average correlation coefficient; narrow-band components; narrow-band filtering method; pulse arrival time; signal processing; systolic blood pressure variations; Biomedical engineering; Blood pressure; Cardiology; Dentistry; Filtering; Filters; Narrowband; Signal detection; Signal processing; Surgery;

fLanguage

English

Publisher

ieee

Conference_Titel

[Engineering in Medicine and Biology, 1999. 21st Annual Conference and the 1999 Annual Fall Meetring of the Biomedical Engineering Society] BMES/EMBS Conference, 1999. Proceedings of the First Joint

Conference_Location

Atlanta, GA

ISSN

1094-687X

Print_ISBN

0-7803-5674-8

Type

conf

DOI

10.1109/IEMBS.1999.802297

Filename

802297