PEIRS Pathology Expert Interpretative Reporting System
System for interpreting chemical pathology reports
Dept. of Medical Computer Science, University of Vienna
Expert systems, Ripple Down Rules, knowledge acquisition, knowledge maintenance
Department of Chemical Pathology, St Vincent's Hospital, Sydney
Decommissioned 1994 when a new hospital information system was installed.
PEIRS appends interpretative comments to pathology reports. The knowledge aqusition strategy is the
Ripple Down Rules method, which has allowed a pathologist to build over 2300 rules without knowledge engineering or
programming support. New rules are added in minutes, and maintenance tasks are a trivial extension to the pathologist's routine duties. PEIRS commented on about 100 reports/day. Domains covered include thyroid function tests, arterial blood gases, glucose tolerance tests, hCG, catecholamines and a range of other hormones.
Edwards G, Compton P, Malor R, Srinivasan A, Lazarus L. PEIRS: a pathologist maintained expert system for the interpretation of chemical pathology reports. Pathology 1993;25:27-34
Compton P, Edwards G, Srinivasan A, Malor R, Preston P, Kang B, Lazarus, L. Ripple down rules: turning knowledge acquisition into knowledge maintenance. Artificial Intelligence in Medicine 1992;4(6):463-475
Compton P. A philosophical basis for knowledge acquisition. Knowledge Acquisition 1990;2:241-257.
Department of Chemical Pathology
St Vincent's Hospital
Sydney New South Wales Australia