Search by modality, contrast and condition, then narrow down to the subjects you need: how many have T1w and
FLAIR, are female, or are between 60 and 80.
UK Biobank multi-modal imaging enhancement (brain, cardiac and abdominal MRI, DXA, carotid ultrasound)
Brain, heart and abdominal MRI, whole-body DXA and carotid ultrasound of over 100,000 UK Biobank participants aged about 44 to 87 at imaging, with repeat scans for a subset, linked to genetics and health records. Access by application and fee.
subjects
103k
subjects
studies
124k
studies
Anatomy
Abdomen, Brain, Carotid artery, Heart, Kidney, Liver, Pancreas, Whole body
377,110 chest radiographs in DICOM format from 227,835 studies of 65,379 patients seen at the Beth Israel Deaconess Medical Center emergency department (2011-2016), each study paired with its free-text radiology report.
CheXpert: A Large Chest Radiograph Dataset with Uncertainty Labels and Expert Comparison
224,316 chest radiographs of 65,240 Stanford Hospital patients (2002-2017) with 14 report-derived labels that include an "uncertain" state, plus a radiologist-labelled validation set. Non-commercial research use only.
FOMO260K brain MRI dataset for large-scale self-supervised learning
Openly downloadable aggregate of 260,927 minimally preprocessed brain MRI scans from 77,589 sessions and 55,378 subjects, pooled from 910 public sources, with clinical- and research-grade scans of many sequences for self-supervised pretraining.
The OpenMind Dataset: 3D head-and-neck MRI pooled from 800 OpenNeuro datasets for self-supervised learning
113,921 3D head and brain volumes (all MRI except 653 PET) from 800 OpenNeuro datasets and about 34,000 subjects, with diffusion-derived maps, defacing and anatomy masks and harmonized metadata, for self-supervised pre-training. CC BY 4.0 on Hugging Face.
NIH Clinical Center Chest X-ray Dataset (ChestX-ray8 / ChestX-ray14)
112,120 frontal chest radiographs (PNG) of 30,805 patients from the NIH Clinical Center, with 14 thoracic disease labels text-mined from reports, age, sex, view, an official patient-level split and ~1,000 bounding boxes.
subjects
31k
subjects
images
112k
images
Anatomy
Chest
CommercialTrainingRe-shareOpen downloadNIH CC ChestX-ray terms
AHEAD 3-45 Study (A3 and A45 trials of lecanemab in preclinical Alzheimer's disease), screening data
Screening data of the AHEAD 3-45 lecanemab prevention trials in cognitively unimpaired adults aged 55 to 80: 16,835 North American screens with amyloid PET imaging and cognitive testing. Post-randomization data are not shared.
subjects
17k
subjects
Anatomy
Brain
CommercialTrainingRe-shareApplicationAHEAD 3-45 DUA
Standardized Centralized Alzheimer's & Related Dementias Neuroimaging (SCAN), NACC
Standardized MRI and amyloid, tau and FDG PET collected since 2021 across the US Alzheimer's Disease Research Centers, defaced and quality-checked centrally, with volumes and SUVRs, linked to NACC clinical data. Free on request under the NACC data use agreement.
subjects
16k
subjects
Anatomy
Brain
FLAIRT1wT2starwT2waslbolddwi
CommercialTrainingRe-shareSigned agreementNACC DUA
Longitudinal US cohort of 4,796 adults aged 45 to 79 with or at risk of knee osteoarthritis, with yearly bilateral 3T knee MRI and knee radiographs over up to eight years, clinical data and central image assessments.
subjects
4,796
subjects
Anatomy
Hip, Knee
T2map
CommercialTrainingRe-shareFree registrationNDA data use terms
Collaborative European NeuroTrauma Effectiveness Research in Traumatic Brain Injury (CENTER-TBI) core study and imaging repository
European prospective cohort of 4,509 patients with traumatic brain injury of all severities (2014-2017), with admission CT for every patient, harmonised 3D T1, T2, FLAIR, DTI and T2*/SWI MRI in a subset, clinical data and outcomes. Access after an approved study plan and a signed data use agreement.
Health and Aging Brain Study: Health Disparities (HABS-HD)
Community-based longitudinal study in Fort Worth, Texas, of about 3,840 non-Hispanic Black, Hispanic and non-Hispanic White adults with 3 T MRI (T1w, FLAIR, DTI, GRE, ASL, fMRI), amyloid and tau PET, blood biomarkers, genomics and cognitive testing.
Amyloid Imaging to Prevent Alzheimer's Disease (AMYPAD) Prognostic and Natural History Study
European cohort of 3,368 older adults without dementia from 10 parent cohorts, with florbetaben or flutemetamol amyloid PET for 1,620 and longitudinal multimodal brain MRI (T1w, FLAIR, T2*, SWI, diffusion, fMRI, ASL), plus clinical, cognitive, CSF and genetic data. Access by reviewed request.
subjects
3,368
subjects
Anatomy
Brain
FLAIRT1wT2starwT2waslbolddwiswi
CommercialTrainingRe-shareApplicationAMYPAD PNHS DUA