Reference: Zegher-Geets, I. d.; Freeman, A.; Walker, M.; Blum, B.; & Wiederhold, G. Computer-Aided Summarization of a Time-Oriented Medical Database. February, 1987.
Abstract: The use of computerized medical records improves the quality of information but doesn't solve the problem of information overload. For this reason, it would be useful to have the ability to automatically summarize patients records into meaningful clinical events. The RADIX summarization program is a knowledge based system which produces intelligent summarizes from a time-oriented data base of Systemic Lupus Erythematosus patients. Medical concepts in the system are represented by three entities of increasing complexity: abnormal primary attributes, abnormal states and diseases. Abnormal states and diseases are derived from the abnormal primary attributes by the Reasoner using a combination of model- driven and data-driven algorithms. Uncertainty associated with the derived states is handled with a Bayesian approach supplemented by boolean predicates, using likelihood ratios obtained from a transformation of the INTERNIST knowledge base. After summarizing the data, the system generates interactive, graphical displays with optional explanation windows.
Notes: 6 pages.