title: [The evaluation of HepatoConsult, a hepatological expert system--the initial results and trends].
abstract: OBJECTIVE
  HepatoConsult (HC) is a medical expert system, based on the expert system building block D3, designed to aid in the diagnosis of liver and biliary tract disease. It was the aim of this study to evaluate its diagnostic competence in clinical cases prospectively.
  
  
  METHODS
  The diagnostic accuracy of HC was tested prospectively in 106 consecutive patients with the main diagnosis of liver disease. 57 were ambulant, 49 were in-patients. The data were obtained and stored at defined phases of the diagnosis. The diagnoses put forward by HC were compared with the final clinical diagnosis and, on the basis of the data, checked for plausibility by four experienced physicians.
  
  
  RESULTS
  After history taking and physical examination HC put forward the main diagnosis, as established by the doctors in charge, in 60% of patients. After addition of the results of basic laboratory tests and sonography, HC provided the correct diagnosis in 85% and, after inclusion of all the findings, in 93%. In almost all cases HC put forward diagnoses that were, on the basis of the supplied data, considered correct by the four physicians experienced in liver disease. In 56% of cases HC provided more differentiated diagnoses or items in the differential diagnosis than the attending doctors. In the opinion of the four assessors HC had not put forward any seriously wrong diagnoses.
  
  
  CONCLUSIONS
  HC can be useful in solving diagnostic problems and thus in ensuring the quality of medical diagnoses.
authors.affiliation: Medizinische Klinik II, DRK-Kliniken Köpenick.
authors.forename: H P
authors.initials: HP
authors.lastname: Buscher
authors.forename: A
authors.initials: A
authors.lastname: Führer
authors.forename: S
authors.initials: S
authors.lastname: Kirschke
authors.forename: D
authors.initials: D
authors.lastname: Galland
authors.forename: H C
authors.initials: HC
authors.lastname: Spangenberg
authors.forename: H E
authors.initials: HE
authors.lastname: Blum
mesh_terms: D003936:Diagnosis, Computer-Assisted / Q000706:statistics & numerical data / Q000639:trends; D003937:Diagnosis, Differential; D005069:Evaluation Studies as Topic; D005103:Expert Systems; D005762:Gastroenterology / Q000706:statistics & numerical data / Q000639:trends; D005858:Germany; D006801:Humans; D008107:Liver Diseases / Q000175:diagnosis; D011446:Prospective Studies; D012017:Referral and Consultation / Q000706:statistics & numerical data* / Q000639:trends