数据描述

The Alzheimer’s Disease Neuroimaging Initiative (ADNI) dataset is a longitudinal, multi-center observational research resource focused on validating biomarkers for Alzheimer’s disease clinical trials. It contains aggregate-level clinical data collected over time from more than 2,500 participants across the United States and Canada, along with linked study cohort information, subject characteristics, clinical assessments and questionnaires, PET and MRI imaging data, MRI quality control and preprocessing outputs, numerical imaging datasets, scanner protocols, biofluid biomarkers, genetics and related omics, neuropathology, remotely collected ADNI4 data, and biospecimen information. Its primary application is supporting Alzheimer’s disease and related dementia research by enabling broad data sharing and biomarker discovery.