# Open Imaging Index

> Open, community-built index of medical imaging datasets. Each dataset has a description, aggregate cohort numbers (subjects per contrast, sex, age, condition, scanner) with their sources, and a breakdown of its license into the same yes/no rules (commercial use, model training, sharing data or trained models, agreements, ethics approval). Data is CC0.

License breakdowns are interpretations, not legal advice. Anyone relying on them must read the original license text and confirm the terms; see [Disclaimer](https://spenhouet.com/open-imaging-index/disclaimer/).

## Data for agents

- [catalog.json](https://spenhouet.com/open-imaging-index/catalog.json): every dataset, license and vocabulary in one JSON file
- [Agent skills](https://spenhouet.com/open-imaging-index/skills/): SKILL.md skills to find datasets and to contribute entries, installable in Claude, Codex, Cursor and other agents
- [Data standard](https://spenhouet.com/open-imaging-index/standard/): file formats, dimensions and the rules for where numbers may come from
- [Repository](https://github.com/Spenhouet/open-imaging-index): source of all data, contributions by pull request

## Pages

- [Search and filter](https://spenhouet.com/open-imaging-index/): query parameters such as ?contrasts=FLAIR,T1w&sex=female&age=60-80&rules=commercial_use
- [Explore](https://spenhouet.com/open-imaging-index/explore/): cross tables of any two attributes
- [Licenses](https://spenhouet.com/open-imaging-index/licenses/): all license breakdowns compared

## Datasets

- [A4 and LEARN](https://spenhouet.com/open-imaging-index/datasets/a4-learn/): Shared data package of the A4 solanezumab prevention trial and its amyloid-negative companion study LEARN: 7,133 longitudinal 3T MRI sessions with T2*-GRE, plus amyloid and tau PET, from cognitively unimpaired adults aged 65 to 85, with central MRI safety reads for microhemorrhages.
- [ABIDE I](https://spenhouet.com/open-imaging-index/datasets/abide-i/): Resting-state fMRI and T1-weighted MRI with phenotypic data for 1,112 people (539 with autism spectrum disorder, 573 typical controls, ages 7 to 64) pooled from 17 sites in the US and Europe.
- [ACDC](https://spenhouet.com/open-imaging-index/datasets/acdc/): Short-axis cine cardiac MRI of 150 patients from the University Hospital of Dijon in five equal groups (normal, previous infarction, dilated and hypertrophic cardiomyopathy, abnormal right ventricle), with expert LV, RV and myocardium segmentations at end-diastole and end-systole.
- [ADNI](https://spenhouet.com/open-imaging-index/datasets/adni/): Longitudinal multi-site study in the US and Canada with repeated structural and advanced MRI, FDG, amyloid and tau PET, biofluids and cognitive testing of cognitively unimpaired older adults and people with MCI or Alzheimer's dementia.
- [AHEAD 3-45 screening data](https://spenhouet.com/open-imaging-index/datasets/ahead-3-45/): 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.
- [AIBL](https://spenhouet.com/open-imaging-index/datasets/aibl/): Longitudinal Australian cohort of older adults who are cognitively normal or have MCI or Alzheimer's dementia. The subset with MRI and amyloid PET (PiB, florbetapir, flutemetamol) is shared through the LONI IDA, with demographic, cognitive and blood data.
- [AIBL Synthetic Cerebral Microbleeds on SWI](https://spenhouet.com/open-imaging-index/datasets/csiro-aibl-synthetic-cmb/): 370 SWI brain scans from the AIBL study, 57 with expert-located cerebral microbleeds and 313 without, plus 3,700 copies with 10 synthetic microbleeds each and their locations, for training and benchmarking microbleed detectors.
- [AIMS-TBI](https://spenhouet.com/open-imaging-index/datasets/aims-tbi/): MICCAI challenge data from the ENIGMA paediatric and adult moderate-severe TBI working groups: 892 defaced T1-weighted brain MRI scans from 13 sites (2025 release) with manual binary lesion masks, shared after signing a University of Utah data use agreement.
- [AMYPAD PNHS](https://spenhouet.com/open-imaging-index/datasets/amypad-pnhs/): 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.
- [APTOS 2019](https://spenhouet.com/open-imaging-index/datasets/aptos-2019/): Retinal fundus photographs from Aravind Eye Hospital screening in rural India, each graded by a clinician for diabetic retinopathy severity on a 0 to 4 scale, released for a 2019 Kaggle competition.
- [ARIC-NCS brain MRI](https://spenhouet.com/open-imaging-index/datasets/aric-ncs-mri/): 3 T brain MRI (MPRAGE, FLAIR, 2D T2* GRE) of 1,928 older adults from four US communities at ARIC visit 5 (2011-13), with centrally read microbleeds, infarcts and white matter hyperintensities. Access through an approved ARIC proposal and a data distribution agreement.
- [Asan Medical Center SWI Microbleed Set (ARIA-H)](https://spenhouet.com/open-imaging-index/datasets/asan-aria-h/): In-house set of 565 SWI brain MRI scans from Asan Medical Center, Seoul (429 with microbleeds), labelled by one neuroradiologist to train microbleed detection for ARIA-H severity grading. Described in a 2025 AAIC abstract; not publicly released.
- [ASPREE-NEURO](https://spenhouet.com/open-imaging-index/datasets/aspree-neuro/): Longitudinal 3 T brain MRI (T1w, FLAIR, SWI, diffusion, ASL, resting-state fMRI) of 559 healthy Australians aged 70 and over in a randomised aspirin trial, scanned at baseline, 1 and 3 years to track microbleeds and white matter lesions. Access by ASPREE application.
- [ATLAS v2.0](https://spenhouet.com/open-imaging-index/datasets/atlas-v2/): T1-weighted brain MRI with manually traced stroke lesion masks from 44 research cohorts in 11 countries: 1,271 subjects, of which 655 training cases with masks and 300 test scans without masks are released.
- [AURORA (Leiden D-CAA cohort)](https://spenhouet.com/open-imaging-index/datasets/aurora-dcaa/): Prospective Leiden cohort of 120 presymptomatic and symptomatic carriers of Dutch-type hereditary cerebral amyloid angiopathy with yearly 3 T and 7 T brain MRI (SWI, FLAIR, T2w), CSF and cognitive tests. Data on request from the authors.
- [Brain Before Stroke (BBS)](https://spenhouet.com/open-imaging-index/datasets/brain-before-stroke/): Prospective cohort of 428 adults with a first-ever supratentorial ischemic stroke at Bordeaux University Hospital, imaged on 3 T GE MRI 24 to 72 hours after onset (DWI, FLAIR, T1, SWAN, T2*-GRE) with 1-year outcomes. Shared on request to the PI.
- [BraTS 2021](https://spenhouet.com/open-imaging-index/datasets/brats-2021/): Pre-operative multi-parametric brain MRI (T1, contrast-enhanced T1, T2, FLAIR) of 2,040 adult glioma patients from many institutions, with expert-approved tumor sub-region segmentations and MGMT promoter methylation labels.
- [Cam-CAN](https://spenhouet.com/open-imaging-index/datasets/camcan/): Population-based adult lifespan cohort (18-87 years) from Cambridge, UK: about 650 cognitively healthy adults with T1w, T2w, diffusion, magnetization transfer and resting, movie and task fMRI at 3T, plus MEG and cognitive tests.
- [CAMELYON16](https://spenhouet.com/open-imaging-index/datasets/camelyon16/): About 400 H&E whole-slide images of sentinel lymph nodes from breast cancer patients at two Dutch hospitals, labelled for metastases with detailed tumour outlines, released under CC0 for the CAMELYON16 challenge.
- [Cao 2026 In-house cSS Test Set](https://spenhouet.com/open-imaging-index/datasets/cao2026-css/): In-house test set of 10 patients with confirmed cortical superficial siderosis on SWI or T2*-weighted MRI, with manual lesion delineations validated by a neuroradiologist. Used to evaluate synthetic-data training for cSS segmentation; not released.
- [CBIS-DDSM](https://spenhouet.com/open-imaging-index/datasets/cbis-ddsm/): Curated, DICOM-converted subset of the 1990s DDSM scanned-film mammograms: 1,566 women, 3,103 CC and MLO mammograms with mass and calcification ROIs, BI-RADS descriptors, pathology labels and a fixed train/test split.
- [CheXpert](https://spenhouet.com/open-imaging-index/datasets/chexpert/): 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.
- [Clarity AD (lecanemab phase 3 trial imaging)](https://spenhouet.com/open-imaging-index/datasets/clarity-ad/): Serial safety MRI at 1.5 T or 3 T (3D T1w, FLAIR, T2*-GRE, T2w, DWI) of 1795 people with early Alzheimer disease in the Eisai and Biogen lecanemab phase 3 trial, centrally read for ARIA. The images are not shared; the safety paper states its data are not available.
- [CMUH SWAN Microbleed Set](https://spenhouet.com/open-imaging-index/datasets/cmuh-swan-cmb/): 205 clinical GE SWAN brain MRI exams from China Medical University Hospital, Taiwan (104 with microbleeds, 101 without), with voxel-wise microbleed masks by one neurologist. Used for synthetic-to-real microbleed segmentation; shared only through research collaboration.
- [CT-ICH (PhysioNet)](https://spenhouet.com/open-imaging-index/datasets/ct-ich/): Non-contrast head CT of 82 patients with traumatic brain injury from Al Hilla Teaching Hospital, Iraq, with radiologist hemorrhage masks and per-slice labels for five hemorrhage types and skull fracture; 75 scans are on PhysioNet.
- [CUHK SWI-CMB (public subset)](https://spenhouet.com/open-imaging-index/datasets/cuhk-cmb/): 3 T SWI brain MRI of 20 subjects with point annotations (voxel centroids) of cerebral microbleeds, released by CUHK as a public subset of the 320-subject SWI-CMB set of stroke and normal ageing participants.
- [DELCODE](https://spenhouet.com/open-imaging-index/datasets/delcode/): German multicentre memory-clinic cohort of about 1,000 people aged 60 and over with subjective cognitive decline, MCI or mild Alzheimer's dementia, first-degree relatives and controls, with yearly 3 T MRI, cognition, CSF and amyloid and FDG PET in a subset. Access by application to the DZNE.
- [DIAN Observational Study](https://spenhouet.com/open-imaging-index/datasets/dian-observational/): International longitudinal study of adult children of parents with an APP, PSEN1 or PSEN2 mutation, comparing mutation carriers with non-carrier siblings using 3T MRI (incl. T2*-GRE or SWI with microbleed reads), PiB, FDG and tau PET, fluids and cognition.
- [DIAN-TU-001 (gantenerumab and solanezumab arms)](https://spenhouet.com/open-imaging-index/datasets/dian-tu-001/): Phase II/III placebo-controlled trial of gantenerumab or solanezumab in 142 carriers of dominantly inherited Alzheimer disease mutations, with frequent 3T safety MRI (FLAIR, 2D T2*-GRE) centrally read for ARIA-E and ARIA-H, PiB PET, CSF and cognition.
- [EMERGE and ENGAGE (aducanumab phase 3 trial imaging)](https://spenhouet.com/open-imaging-index/datasets/emerge-engage/): Serial safety MRI at 1.5 T or 3 T (FLAIR for ARIA-E, T2*-GRE for ARIA-H) of 3285 people with early Alzheimer disease in Biogen's two aducanumab phase 3 trials, with amyloid PET in a substudy. The images are not shared; Biogen does not generally share imaging data.
- [EPAD LCS](https://spenhouet.com/open-imaging-index/datasets/epad-lcs/): European multi-site cohort of 2,096 adults aged 50 or over without dementia, many amyloid positive, with longitudinal 3D T1w, FLAIR, T2w and T2*w MRI, SWI, fMRI, diffusion and ASL at a subset of sites, CSF biomarkers and cognitive data. Access by request through the AD Data Initiative.
- [fastMRI (knee and brain)](https://spenhouet.com/open-imaging-index/datasets/fastmri/): Raw multi-coil k-space of 1,594 knee and 6,970 brain MRI scans from NYU Langone, plus about 10,000 clinical knee MRI exams as DICOM, released with Meta AI (FAIR) to benchmark machine-learning reconstruction of accelerated MRI.
- [FOCAS (Leiden sporadic CAA cohort)](https://spenhouet.com/open-imaging-index/datasets/focas/): Prospective Leiden cohort of 126 participants with sporadic cerebral amyloid angiopathy seen at yearly research visits with 3 T SWI brain MRI, 7 T MRI, CSF and clinical follow-up, including semi-automatic siderosis masks for a small subset. Data on request from the authors.
- [FOMO260K](https://spenhouet.com/open-imaging-index/datasets/fomo260k/): 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.
- [HABS](https://spenhouet.com/open-imaging-index/datasets/habs/): Longitudinal study at Massachusetts General Hospital of 358 older adults who were cognitively normal at entry, with 3 T MRI (T1w, FLAIR, SWI, DTI, resting-state fMRI), PiB, flortaucipir and FDG PET and up to 11 years of clinical and cognitive follow-up.
- [HCP Young Adult (S1200)](https://spenhouet.com/open-imaging-index/datasets/hcp-young-adult/): High-resolution 3T structural, resting-state and task fMRI and multi-shell diffusion MRI of 1,113 healthy young adults from twin and sibling families (1,206 with behavioral data), plus 7T MRI for 184 and MEG for 95 of them.
- [HCP-Aging (Lifespan 2.0)](https://spenhouet.com/open-imaging-index/datasets/hcp-aging/): Multimodal 3T MRI of 725 healthy adults aged 36 to 100+ from four US sites: T1w and T2w structural, high-resolution hippocampal T2w, resting-state and task fMRI, two-shell diffusion and multi-delay ASL, with behavioral data, shared through the NIMH Data Archive.
- [Insight 46](https://spenhouet.com/open-imaging-index/datasets/insight-46/): Longitudinal PET-MRI sub-study of 502 members of the 1946 British birth cohort, scanned around age 70 and again two years later on one 3 T PET/MR, with amyloid PET, structural, susceptibility, diffusion and perfusion MRI and life course data. Access by application to NSHD.
- [ISIC 2020](https://spenhouet.com/open-imaging-index/datasets/isic-2020/): 44,108 dermoscopic images of skin lesions from 2,746 patients at six centres (33,126 labelled training images of 2,056 patients, 584 of them histopathologically confirmed melanomas), with approximate age, sex and anatomic site.
- [ISLES 2022](https://spenhouet.com/open-imaging-index/datasets/isles-2022/): Acute to subacute ischemic stroke MRI (FLAIR, DWI and ADC) with expert infarct masks from Munich, Bern and Hamburg: 400 cases for the ISLES 2022 challenge, of which the 250 training cases are on Zenodo under CC BY 4.0.
- [IXI](https://spenhouet.com/open-imaging-index/datasets/ixi/): Nearly 600 brain MRI scans of healthy adults from three London hospitals, with T1w, T2w, PD, MR angiography and diffusion images and basic demographics.
- [J-ADNI](https://spenhouet.com/open-imaging-index/datasets/j-adni/): Japanese multicentre longitudinal study of 537 older adults with normal cognition, late amnestic MCI or mild Alzheimer's dementia, with structural MRI (1.5 T and 3 T), FDG and amyloid PET (PiB or BF-227), CSF, blood and cognitive data, run with protocols harmonised to ADNI.
- [JHU Acute Stroke MRI](https://spenhouet.com/open-imaging-index/datasets/jhu-acute-stroke-mri/): Clinical MRI of 2,888 patients admitted with acute or early subacute stroke to the Johns Hopkins Comprehensive Stroke Center (2009-2019), with manual DWI lesion masks, native and MNI-space images and clinical metadata, in BIDS.
- [KiTS23](https://spenhouet.com/open-imaging-index/datasets/kits23/): Contrast-enhanced preoperative abdominal CT of 599 patients treated for suspected kidney cancer at M Health Fairview (2010-2022), with kidney, tumor and cyst segmentations for 489 training cases and clinical metadata.
- [LIDC-IDRI](https://spenhouet.com/open-imaging-index/datasets/lidc-idri/): 1,018 thoracic CT scans of 1,010 patients from seven US academic centers, each read by four radiologists who marked and outlined lung nodules and rated their characteristics. Includes a smaller set of chest radiographs.
- [LINCHPIN CT and pathology set](https://spenhouet.com/open-imaging-index/datasets/linchpin/): Admission non-contrast head CT of 110 adults with first-ever intracerebral haemorrhage in Lothian, Scotland, who died and had a research autopsy, with masked CT ratings, APOE genotype and CAA grading. The ratings are open; the CT images are not shared.
- [MarkVCID](https://spenhouet.com/open-imaging-index/datasets/markvcid/): US multi-site study of small vessel disease biomarkers with a harmonized 3 T MRI protocol (ME-MPRAGE, 3D FLAIR, DWI, 3D multi-echo GRE, T2w, BOLD-CVR), clinical and cognitive data and biosamples. MarkVCID1 enrolled 653 participants. Access by approved proposal and DUA.
- [Medical Segmentation Decathlon](https://spenhouet.com/open-imaging-index/datasets/msd/): Ten 3D segmentation tasks in one benchmark: brain tumours, heart, liver, hippocampus, prostate, lung, pancreas, hepatic vessels, spleen and colon, with 2,633 CT and MRI volumes in NIfTI under CC BY-SA 4.0.
- [MEMENTO](https://spenhouet.com/open-imaging-index/datasets/memento/): French memory-clinic cohort of 2,323 non-demented adults with subjective complaints or mild cognitive impairment, followed for 5 years with harmonised 1.5 T and 3 T brain MRI including 2D T2*-weighted GRE, optional FDG PET, biobank and clinical data. Access by approved proposal.
- [MESA Exam 6 Brain MRI](https://spenhouet.com/open-imaging-index/datasets/mesa-brain-mri/): 3 T brain MRI of 1,062 older adults from a multi-ethnic US community cohort, scanned 2018 to 2019 with T1w, T2w, FLAIR, diffusion, ASL, multi-echo SWI/QSM and fMRI. Available through an approved MESA proposal and a signed DMDA.
- [MGH CAA cohort, cSS evolution set](https://spenhouet.com/open-imaging-index/datasets/mgh-caa-css-evolution/): Baseline and follow-up 1.5 T MRI with T2*-GRE or SWI of 118 patients with probable CAA without intracerebral haemorrhage from Massachusetts General Hospital (2000-2015), with visual ratings of siderosis progression and new microbleeds. Not publicly shared.
- [MIMIC-CXR](https://spenhouet.com/open-imaging-index/datasets/mimic-cxr/): 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.
- [NACC SCAN](https://spenhouet.com/open-imaging-index/datasets/nacc-scan/): 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.
- [NIH ChestX-ray14](https://spenhouet.com/open-imaging-index/datasets/nih-chestxray14/): 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.
- [OASIS-3](https://spenhouet.com/open-imaging-index/datasets/oasis-3/): Retrospective longitudinal collection from the WUSTL Knight ADRC with MRI, amyloid, FDG and tau PET and CT for about 1,378 cognitively normal and cognitively declining adults aged 42 to 95, with clinical and cognitive data.
- [Older Australian Twins Study (OATS)](https://spenhouet.com/open-imaging-index/datasets/oats/): Longitudinal UNSW study of 623 twins and siblings aged 65 and over, with brain MRI (including 1.5 T SWI), amyloid PET in 207 and repeated cognitive and medical assessment. Data are released through Dementias Platform Australia.
- [OpenMind](https://spenhouet.com/open-imaging-index/datasets/openmind/): 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.
- [Osteoarthritis Initiative](https://spenhouet.com/open-imaging-index/datasets/oai/): 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.
- [OXVASC T2*-GRE Microbleed Set](https://spenhouet.com/open-imaging-index/datasets/oxvasc-cmb/): 3 T 2D T2*-weighted GRE brain MRI of 74 Oxford Vascular Study patients after minor stroke or TIA, with manual voxel segmentations of 366 cerebral microbleeds in the 36 patients who had them. Shared on request to the OXVASC PI.
- [QSM Reconstruction Challenge 2.0 (simulated)](https://spenhouet.com/open-imaging-index/datasets/qsm-challenge-2/): Simulated data, not patient scans: four multi-echo gradient-echo magnitude and phase datasets at 1 mm from a realistic in silico head phantom built from one volunteer's 7T MRI, with ground-truth susceptibility maps and tissue segmentations for benchmarking QSM.
- [Radboudumc TBI SWI Microbleed Set](https://spenhouet.com/open-imaging-index/datasets/radboudumc-tbi-swi/): Single-centre 3 T SWI and T1 MRI from Radboudumc, Nijmegen: 81 studies of 45 patients with moderate to severe traumatic brain injury and 18 healthy controls, with microbleed segmentations and six-observer point annotations. Not publicly released.
- [SHIVA cohort](https://spenhouet.com/open-imaging-index/datasets/shiva-cohort/): Ongoing French cohort of adults over 60 with extensive or minimal white matter hyperintensities, built to find imaging and circulating biomarkers of cerebral small vessel disease. 150 enrolled by March 2024, 3 T Siemens Prisma MRI with T2*-GRE and optional SWI. Not public.
- [Sydney Memory and Ageing Study (MAS)](https://spenhouet.com/open-imaging-index/datasets/sydney-mas/): Longitudinal UNSW cohort of 1,037 non-demented adults aged 70 to 90 from Eastern Sydney, with 3 T MRI (T1w, FLAIR, SWI) in about half. Data are released through Dementias Platform Australia after an approved application.
- [TICH-2 MRI Sub-study](https://spenhouet.com/open-imaging-index/datasets/tich-2-mri/): Multicentre brain MRI (DWI, FLAIR, T2*-GRE, T1w, T2w, optional SWI) of 219 patients with acute spontaneous intracerebral haemorrhage in the TICH-2 tranexamic acid trial, with microbleed masks in a labelled subset of 115 SWI scans. Shared on written request to the sub-study PI.
- [TotalSegmentator CT](https://spenhouet.com/open-imaging-index/datasets/totalsegmentator/): 1,228 routine clinical CT series from University Hospital Basel, randomly sampled across body regions, scanners and pathologies, with reviewed segmentations of 117 anatomical structures. Basis of the TotalSegmentator model.
- [TRAILBLAZER-ALZ 2 (donanemab phase 3 trial imaging)](https://spenhouet.com/open-imaging-index/datasets/trailblazer-alz-2/): Serial safety MRI (FLAIR for ARIA-E, T2*-GRE for ARIA-H), volumetric MRI and amyloid and tau PET of 1736 people with early symptomatic Alzheimer disease in Lilly's donanemab phase 3 trial. The images are not shared; Lilly generally excludes MRI scans from its Vivli data sharing.
- [UCLA CNP (ds000030)](https://spenhouet.com/open-imaging-index/datasets/openneuro-ds000030/): Brain MRI of 272 adults aged 21 to 50 from Los Angeles: healthy controls and people with schizophrenia, bipolar disorder or ADHD, with T1w, 64-direction diffusion, resting-state and seven task fMRI scans, in BIDS under CC0.
- [UCSF Radiation-Induced Microbleed 7 T SWI Set](https://spenhouet.com/open-imaging-index/datasets/ucsf-radiation-cmb-7t/): 91 7 T SWI scans of 73 glioma patients with radiation-induced cerebral microbleeds at UCSF, with 2,835 true microbleeds labelled among detector candidates. Described in a 2019 paper; no data release or sharing route.
- [UK Biobank Imaging](https://spenhouet.com/open-imaging-index/datasets/uk-biobank-imaging/): 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.
- [VALDO 2021](https://spenhouet.com/open-imaging-index/datasets/valdo-2021/): Training data of the MICCAI 2021 VALDO challenge: brain MRI from the SABRE, Rotterdam Scan Study and ALFA cohorts with manual labels of enlarged perivascular spaces (40 cases), cerebral microbleeds on T2* (72) and lacunes (40).
- [VinDr-Mammo](https://spenhouet.com/open-imaging-index/datasets/vindr-mammo/): 5,000 four-view full-field digital mammography exams (20,000 DICOM images) from two Hanoi hospitals, double read by radiologists with breast-level BI-RADS and density, bounding boxes for findings and a fixed train/test split.
- [WRAP](https://spenhouet.com/open-imaging-index/datasets/wrap/): Longitudinal US cohort enrolled at midlife and enriched for a parental history of Alzheimer's disease, with cognition every two years and MRI (T1, T2, FLAIR), amyloid PET (PiB, NAV4694) and MK-6240 tau PET in subsets. Access by application to the WRAP committee.
- [Yonsei/Gachon SWI Microbleed Dataset](https://spenhouet.com/open-imaging-index/datasets/yonsei-gachon-cmb/): 3 T SWI, phase and magnitude brain MRI of 179 subjects from Gachon University Gil Medical Center with point labels for 760 cerebral microbleeds. Offered with the 2020 paper, but the authors withdrew the data in 2021.