Continuous cardiac output determination from blood pressure waveforms using a fuzzy logic model

Author

Ling, Jian ; Guerra, Joseph M. ; Robey, Brian L. ; Winter, Dean C.

Author_Institution

Southwest Res. Inst., San Antonio, TX, USA

Volume

2

fYear

1999

fDate

36434

Abstract

Describes the development of an adaptive fuzzy logic system that continuously estimates cardiac output (CO) from the blood pressure waveform. This fuzzy logic system was evaluated using 133 sets of experimental data from 10 baboons. The mean error (or bias) between the model-estimated CO and the thermodilution-measured CO was 0.001 liter/min (4.0%) with a standard deviation (or precision) of 0.97 liter/min (27.7%) when using the aortic blood pressure waveform. The mean error (or bias) was 0.045 liter/min (5.9%) with a standard deviation (or precision) of 0.97 liter/min (26.9%) when using the radial blood pressure waveform. These results demonstrate the significant potential of using a fuzzy logic model to estimate cardiac output from blood pressure waveforms

Keywords

cardiovascular system; fuzzy logic; haemodynamics; medical signal processing; patient care; patient monitoring; physiological models; adaptive fuzzy logic system; baboons; bias; blood pressure waveforms; continuous cardiac output; fuzzy logic model; mean error; model-estimated cardiac output; radial blood pressure waveform; thermodilution-measured cardiac output; Adaptive systems; Animals; Arteries; Biomedical monitoring; Blood pressure; Cardiovascular system; Fuzzy logic; Humans; Patient monitoring; Signal processing algorithms;

fLanguage

English

Publisher

ieee

Conference_Titel

[Engineering in Medicine and Biology, 1999. 21st Annual Conference and the 1999 Annual Fall Meetring of the Biomedical Engineering Society] BMES/EMBS Conference, 1999. Proceedings of the First Joint

Conference_Location

Atlanta, GA

ISSN

1094-687X

Print_ISBN

0-7803-5674-8

Type

conf

DOI

10.1109/IEMBS.1999.804085

Filename

804085