TY - GEN
T1 - Experimental assessment of error sources in thermodilution measurements of cardiac output and ejection fraction
AU - Gefen, Nurit
AU - Barnea, Ofer
AU - Abramovich, Aharon
AU - Santamore, William P.
PY - 1999
Y1 - 1999
N2 - 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.
AB - 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.
UR - http://www.scopus.com/inward/record.url?scp=0033314685&partnerID=8YFLogxK
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AN - SCOPUS:0033314685
SN - 0780356756
T3 - Annual International Conference of the IEEE Engineering in Medicine and Biology - Proceedings
SP - 796
BT - Annual International Conference of the IEEE Engineering in Medicine and Biology - Proceedings
PB - IEEE
T2 - Proceedings 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)
Y2 - 13 October 1999 through 16 October 1999
ER -