Assessment of Diagnostic Technologies
- 24 August 1979
- journal article
- research article
- Published by American Association for the Advancement of Science (AAAS) in Science
- Vol. 205 (4408) , 753-759
- https://doi.org/10.1126/science.462188
Abstract
A general protocol for rigorous evaluation of diagnostic systems in medicine was applied successfully in a comparative study of two radiologic techniques. Accuracies of computed tomography and radionuclide scanning in detecting, localizing, and diagnosing brain lesions were assessed with a sample of patients in whom tumor had been suspected. The principal means of analysis was the "relative operating characteristic," which is unique in providing a measure of accuracy that is largely independent of decision biases. Computed tomography was found to be substantially more accurate than radionuclide scanning.Keywords
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