title: An expert system for diagnosis of coronary artery stenosis based on 201Tl scintigrams using the Dempster-Shafer theory of evidence.
abstract: An expert system for the diagnosis of stenoses in the three main coronary arteries (left anterior descending, right coronary artery and circumflex) is described. First, the knowledge base domain--201Tl scintigrams--is explained and the method of preprocessing the original heart images is given. Next, the method of dealing with the uncertainties present both in the cardiologist-specified rules and the data using the Dempster-Shafer theory of evidence is explained. Finally, the constructed expert system and the results are discussed and several graphical examples are shown.
authors: University of Toledo, OH.
authors: K J
authors: KJ
authors: Cios
authors: R E
authors: RE
authors: Freasier
authors: L S
authors: LS
authors: Goodenday
authors: L T
authors: LT
authors: Andrews
mesh_terms: D003327:Coronary Disease / Q000000981:diagnostic imaging*; D003936:Diagnosis, Computer-Assisted; D005103:Expert Systems; D006801:Humans; D011237:Predictive Value of Tests; D011877:Radionuclide Imaging; D013794:Thallium Radioisotopes
chemical_list: D013794:Thallium Radioisotopes