Experimental assessment of error sources in thermodilution measurements of cardiac output and ejection fraction

Nurit Gefen*, Ofer Barnea, Aharon Abramovich, William P. Santamore

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

3 Scopus citations

Abstract

The most common method used for clinical measurement of cardiac output and right ventricular ejection fraction is thermodilution. This method is based on several assumptions, which are not always valid. This may result in errors in order of 20-50%. In this work these sources of error were experimentally examined. Results indicate that the errors associated with ejection fraction are mostly due to residual thermal energy at the right atrium that is not considered in the calculations. Cardiac output measurement suffers mostly from thermal losses along the catheter.

Original languageEnglish
Title of host publicationAnnual International Conference of the IEEE Engineering in Medicine and Biology - Proceedings
PublisherIEEE
Pages796
Number of pages1
ISBN (Print)0780356756
StatePublished - 1999
EventProceedings of the 1999 IEEE Engineering in Medicine and Biology 21st Annual Conference and the 1999 Fall Meeting of the Biomedical Engineering Society (1st Joint BMES / EMBS) - Atlanta, GA, USA
Duration: 13 Oct 199916 Oct 1999

Publication series

NameAnnual International Conference of the IEEE Engineering in Medicine and Biology - Proceedings
Volume2
ISSN (Print)0589-1019

Conference

ConferenceProceedings of the 1999 IEEE Engineering in Medicine and Biology 21st Annual Conference and the 1999 Fall Meeting of the Biomedical Engineering Society (1st Joint BMES / EMBS)
CityAtlanta, GA, USA
Period13/10/9916/10/99

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