[Reliability of scintigraphic methods in the diagnosis of coronary insufficiency].
Some conceptual problems arise when applying the probability analysis to the scintigraphic diagnosis of coronary artery disease. Analysis with Bayes' rule considers disease to be present or absent, radionuclide test response to be positive or negative, sensitivity and specificity to be the same in all patients. In fact, disease can be graded in severity; test results can be analysed as continuous variables; sensitivity and specificity of our diagnostic procedures are not constants but depend of the population features. Moreover, the accuracy of the radionuclide tests refers to the coronary arteriogram, which is not the appropriate standard of coronary artery disease.
Delcourt
E
E
Henuzet
C
C
D001499:Bayes Theorem; D015982:Bias; D017023:Coronary Angiography; D003327:Coronary Disease / Q000000981:diagnostic imaging*; D006321:Heart / Q000000981:diagnostic imaging; D006801:Humans; D011877:Radionuclide Imaging; D015203:Reproducibility of Results
Fiabilité des méthodes scintigraphiques dans le diagnostic de l'insuffisance coronaire.