DocumentCode :
2354776
Title :
A model-based reasoning system for the management of respiratory weaning process
Author :
Tan, Qian ; Napper, Stan
Author_Institution :
Dept. of Biomed. Eng., Louisiana Tech. Univ., Ruston, LA, USA
fYear :
1995
fDate :
7-9 Apr 1995
Firstpage :
16
Abstract :
Summary form only given. The progressive withdrawal of mechanical ventilation is called weaning. A computerized decision support system (off-line or on-line) would help the medical staff to wean patients more efficiently and can potentially reduce treatment duration and mortality rates. The aim of this research is to design a model-based reasoning system to provide on-line guidance in respiratory weaning process management. In this approach, the semi-quantitative reasoning method is applied to regulate and control the weaning process by adjusting the ventilator settings. A semi-quantitative method provides a level of description that is intermediate between abstract qualitative models and precise numerical models. It combines both qualitative and quantitative knowledge within a single semi-quantitative qualitative differential equation (SQDE) representation. It is a set of qualitative constraints which are augmented with envelopes for all monotonic functions and numeric ranges for all model variables and initial conditions. The model is then simulated to compute the variables in ventilator setting. The control system is tested under different physiological conditions, using a detailed simulation model of the human respiratory system
Keywords :
biocontrol; decision support systems; medical expert systems; model-based reasoning; patient care; patient treatment; pneumodynamics; ICU; SQDE; abstract qualitative models; computerized decision support system; control system; human respiratory system; mechanical ventilation; model variables; model-based reasoning system; monotonic functions; mortality rates; numeric ranges; on-line guidance; physiological conditions; precise numerical models; qualitative knowledge; respiratory weaning process management; semi-quantitative reasoning method; treatment duration; ventilator settings; Computational modeling; Control system synthesis; Decision support systems; Differential equations; Inference mechanisms; Medical control systems; Medical treatment; Numerical models; Process control; Ventilation;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Biomedical Engineering Conference, 1995., Proceedings of the 1995 Fourteenth Southern
Conference_Location :
Shreveport, LA
Print_ISBN :
0-7803-2083-2
Type :
conf
DOI :
10.1109/SBEC.1995.514417
Filename :
514417
Link To Document :
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