Level of evaluation | Example measures |
Technical factors | Spatial resolution, contrast resolution, etc. |
Case studies and observational series | Descriptive findings |
Diagnostic efficacy | Sensitivity, specificity, ROC analysis, etc. |
Diagnostic impact | Change in diagnostic probabilities |
Therapeutic impact | Change in treatment |
Health outcomes | Physical, mental, quality of life changes |
Cost-effectiveness | Cost/quality-adjusted year of life saved |
↵* Adapted from the work of Fryback and Thornbury (9) and others.
ROC = receiver operating characteristic curve.