Criteria for assessing the diagnostic significance of modern methods of imaging gastrointestinal diseases in practical gastroenterology

Table 1 Classification of diagnostic methods

Groups of diagnostic methods	Criteria for assessing the diagnostic effectiveness of a method (symptom)
Clinical methods	Sensitivity, specificity, and accuracy
Subjective symptoms	-
Complaints	-
Anamnesis	-
Objective symptoms	-
Data of objective findings, somatic symptoms	-
Additional methods	-
Laboratory symptoms	-
Biochemical methods	-
Immuno-enzyme methods	-
Immunological methods	-
Molecular genetic methods	-
Bacteriological methods	-
Histopathological and cytological methods	-
Instrumental methods	-
Symptoms of radiation methods	-
Endoscopic symptoms	-
Symptoms of other methods	-
Method ex juvantibus	-

The reference “gold standard” method is typically established through either a pathological autopsy or a lifetime diagnosis obtained from a comprehensive examination that incorporates all available diagnostic methods.