A frame-based representation for a bedside ventilator weaning protocol


We describe the use of a frame-based knowledge representation to construct an adequately-explicit bedside clinical decision support application for ventilator weaning. The application consists of a data entry form, a knowledge base, an inference engine, and a patient database. The knowledge base contains database queries, a data dictionary, and decision frames. A frame consists of a title, a list of findings necessary to make a decision or carry out an action, and a logic or mathematical statement to determine its output. Frames for knowledge representation are advantageous because they can be created, visualized, and conceptualized as self-contained entities that correspond to accepted medical constructs. They facilitate knowledge engineering and provide understandable explanations of protocol outputs for clinicians. Our frames are elements of a hierarchical decision process. In addition to running diagnostic and therapeutic logic, frames can run database queries, make changes to the user interface, and modify computer variables.

DOI: 10.1016/j.jbi.2008.02.002

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@article{Sorenson2008AFR, title={A frame-based representation for a bedside ventilator weaning protocol}, author={D. Sorenson and C. K. Grissom and L. Carpenter and A. Austin and Katherine A. Sward and L. Napoli and Homer R. Warner and Alan H. Morris}, journal={Journal of biomedical informatics}, year={2008}, volume={41 3}, pages={461-8} }