Clinical usefulness
cognitive impairment, x‐axis, amnestic, y‐axis, aMCI
Decision curve analysis (DCA) was applied to justify the clinical usefulness of this study. The prediction model provided clinical consequences regarding the choice of the threshold probability from which the net benefit could be derived. DCA was performed to estimate the clinical value of the radiomics nomogram by quantifying the net benefits based on the threshold probabilities. Net benefit is defined as the ratio of true positives minus the fraction of false positives weighted by the relative harm of false‐positive and false‐negative results. This threshold probability, Decision curve analysis for the aMCI. The x‐axis represents the threshold probability, and the y‐axis represents the net benefit. aMCI, amnestic mild cognitive impairment.