Title :
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
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;
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
Print_ISBN :
0-7803-5674-8
DOI :
10.1109/IEMBS.1999.804085
