Modeling on-line urea sensor-measurements during hemodialysis

Author

Thomaseth, K. ; Garred, L. ; Ingegno, M. ; Berti, M. ; Pacini, G.

Author_Institution

LADSEB, CNR, Padova, Italy

Volume

5

fYear

1996

fDate

31 Oct-3 Nov 1996

Firstpage

1816

Abstract

On-line urea concentration monitors have been recently developed for the real-time supervision of hemodialysis. The information on urea kinetics provided by on-line sensors must be interpreted taking into account also deterministic patterns related to technical characteristics of the measurement device. For this purpose the authors developed a model of urea concentration measurements performed in blood water by a recently developed sensor. Because of the tight relationship between urea measures and urea clearance, physical and physiological factors affecting dialysis efficiency are taken into account such as blood flows, filter characteristics, cardiopulmonary and access recircularisation

Keywords

biomedical measurement; blood; chemical variables measurement; patient treatment; physiological models; access recircularisation; blood flows; blood water; cardiopulmonary recircularisation; deterministic patterns; dialysis efficiency; filter characteristics; hemodialysis; measurement device technical characteristics; online urea sensor measurements modeling; physical factors; physiological factors; real-time supervision; urea clearance; urea concentration monitors; urea kinetics; Blood flow; Cardiology; Delay; Filters; Filtration; Kinetic theory; Mathematical model; Performance evaluation; Phase frequency detector; Sensor phenomena and characterization;

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.1996.646269

Filename

646269