Artifact reduction for continuous thermodilution measurement of cardiac output

Author

Hamilton, P.S. ; Chow, C. ; Guerrero, J.L. ; Supple, G. ; Silver, L.P. ; Aimi, R. ; Sullivan, S. ; Levine, R.A. ; Curley, M.G.

Author_Institution

EP Ltd., Somerville, MA, USA

Volume

2

fYear

2002

fDate

2002

Firstpage

1754

Abstract

We have developed a method of reducing respiration artifact and a method for reducing slow drift in thermal recordings used for continuous estimation of cardiac output. We recorded thermal data from three anesthetized pigs and compared our estimates of cardiac output to flow as measured by an ultrasonic flowmeter. When both techniques were used, estimation error was reduced by 33% when compared to standard methods for continuous estimation of cardiac output.

Keywords

biomedical ultrasonics; biothermics; blood flow measurement; cardiovascular system; measurement errors; pneumodynamics; anesthetized pigs; cardiac output; cardiac output continuous estimation; continuous thermodilution measurement; estimation error; flow; pulmonary artery; respiration artifact reduction; temperature fluctuation; thermal data; thermal recording slow drift; ultrasonic flowmeter; Blood; Catheters; Fluctuations; Heart; Multilevel systems; Noise reduction; Pulse generation; Pulse measurements; Temperature; Ultrasonic variables measurement;

fLanguage

English

Publisher

ieee

Conference_Titel

Engineering in Medicine and Biology, 2002. 24th Annual Conference and the Annual Fall Meeting of the Biomedical Engineering Society EMBS/BMES Conference, 2002. Proceedings of the Second Joint

ISSN

1094-687X

Print_ISBN

0-7803-7612-9

Type

conf

DOI

10.1109/IEMBS.2002.1106636

Filename

1106636