Fig. 3.

Area under the receiver operating characteristic (ROC) curve (AUC) for the relative interscan interval (RISI) inference experiments using DeepAtrophy and ALOHA, pooled across test subsets of the five cross-validation folds. Greater AUC for DeepAtrophy indicates greater accuracy in inferring which pair of scans has a longer acquisition time interval. Abbreviations: ALOHA = Automatic Longitudinal Hippocampal Atrophy software/package; MCI = mild cognitive impairment; AD = Alzheimer’s disease.