Catheter distortion effects on the evaluation of arterial input impedance and related parameters

Author

Gerard, Paul ; Pochet, Thierry ; Lambermont, Bernard ; Detry, Olivier ; Potty, Philippe ; D´Orio, V. ; Defraigne, Jean-Olivier ; Fossion, Anny ; Limet, Raymond

Author_Institution

Hemodynamics Res. Centre, Liege Univ., Belgium

Volume

1

fYear

1996

fDate

31 Oct-3 Nov 1996

Firstpage

32

Abstract

Fluid-filled catheter-pressure transducer systems are often used to measure pressure in the arterial system. An index is proposed to appreciate, in such systems, the distortion of input impedance at each frequency. Effects on the evaluation of input impedance and some usual derived parameters such as zero-phase frequency, distance to the effective reflection site and characteristic impedance are examined

Keywords

biomedical equipment; blood pressure measurement; physiological models; arterial input impedance evaluation; arterial system pressure measurement; catheter distortion effects; characteristic impedance; distance to effective reflection site; fluid-filled catheter-pressure transducer systems; medical hemodynamic measurements; zero-phase frequency; Calibration; Catheters; Distortion measurement; Frequency; Hemodynamics; Impedance measurement; Parameter estimation; Pressure measurement; Reflection; Transducers;

fLanguage

English

Publisher

ieee

Conference_Titel

Engineering in Medicine and Biology Society, 1996. Bridging Disciplines for Biomedicine. Proceedings of the 18th Annual International Conference of the IEEE

Conference_Location

Amsterdam

Print_ISBN

0-7803-3811-1

Type

conf

DOI

10.1109/IEMBS.1996.656832

Filename

656832