title: Likelihood ratio as an index of the diagnostic usefulness of ultrasonic information in gastrointestinal disease.
abstract: The authors describe the utilization of the log-likelihood statistic as a means to establish the impact of diagnostic sonography on gastroenteric pathology. The statistical method does not require a final diagnosis, but gives an evaluation of how the clinician's opinion is changed or not by the sonographic diagnosis.
mesh_terms: D005069:Evaluation Studies as Topic; D005767:Gastrointestinal Diseases / Q000175:diagnosis*; D006801:Humans; D008107:Liver Diseases / Q000175:diagnosis; D010182:Pancreatic Diseases / Q000175:diagnosis; D013223:Statistics as Topic; D014463:Ultrasonography