The modified step-wise deflation method in blood pressure measurement

Author

Oh, HS ; Chee, YJ ; Lee, JS ; Kim, IY ; Kim, SI ; Kim, YS

Author_Institution

Dept of Biomed. Eng., Hanyang Univ., Seoul

fYear

2008

fDate

14-17 Sept. 2008

Firstpage

169

Lastpage

172

Abstract

In non-invasive blood pressure (NIBP) measurement, most of the automatic devices use oscillometric method. There are two types of deflation in oscillometric method. One is the linear deflation and the other is the stepwise deflation method. In this study, we suggest the modified step deflation to reduce the measurement time while keeping the advantage of step deflation over linear deflation. With the control of the valve and real time signal processing, we implemented the blood pressure measurement system and new algorithm. We measure the amplitude of each systolic pulsation. For the validation of our suggested method, human observer assessed SBP / DBP according to EHS (European Hypertension Society) guideline. The mean differences between the suggested method and traditional auscultation method were 1.95 mmHg for SBP and -0.55 mmHg for DBP.

Keywords

biomedical equipment; blood pressure measurement; cardiovascular system; medical signal processing; EHS guideline; European Hypertension Society; SBP/DBP; algorithmic approach; diastolic blood pressure; heart valve control; linear deflation method; modified step-wise deflation method; noninvasive blood pressure measurement system; oscillometric method; real time signal processing; systolic blood pressure; systolic pulsation amplitude measurement; traditional auscultation method; Blood pressure; Control systems; Humans; Hypertension; Pressure control; Pressure measurement; Real time systems; Signal processing algorithms; Time measurement; Valves;

fLanguage

English

Publisher

ieee

Conference_Titel

Computers in Cardiology, 2008

Conference_Location

Bologna

ISSN

0276-6547

Print_ISBN

978-1-4244-3706-1

Type

conf

DOI

10.1109/CIC.2008.4749004

Filename

4749004