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A population template atlas for teaching, not a patient and not a diagnostic tool.

• MRI templateICBM 152 nonlinear symmetric 2009c, T1 and T2, 1 mm (Fonov et al., NeuroImage 2009, 2011). © McConnell Brain Imaging Centre, MNI, McGill University. Distributed with permission to use, copy, modify and distribute with this notice retained (see MNI-COPYING.txt).
• Structure labelsCerebrA: Manera AL, Dadar M, Fonov V, Collins DL. Scientific Data 7, 237 (2020), doi:10.1038/s41597-020-0557-9. CC0 dataset. Each card shows the label's published agreement (Dice) so you know how much to trust its edge.
• TractographyHCP-1065 population-averaged tractography atlas: Yeh F-C. Population-based tract-to-region connectome of the human brain and its hierarchical topology. Nat Commun 13, 4933 (2022), doi:10.1038/s41467-022-32595-4. CC BY-SA 4.0. Derived from Human Connectome Project (WU-Minn consortium) data. Bundles are in ICBM 2009a asymmetric space, displayed on the 2009c symmetric template; a subsample of 180 streamlines per bundle is shown.
• ArteriesStatistical atlas of cerebral arteries from 544 TOF-MRA scans: Mouches P, Forkert ND. Sci Data 6, 29 (2019), doi:10.1038/s41597-019-0034-5. CC0. Its average angiogram guided registration and the vessel waypoints.
• MRA3D time-of-flight MR angiogram of a healthy adult: OpenNeuro ds003949, Lausanne TOF-MRA cohort (Lausanne University Hospital), subject 125, 3 T Siemens. CC0. Registered to MNI space by rigid then affine alignment to the TOF atlas; arteries are the subject's own bright vessels, named by proximity to the atlas waypoints.
• Veins and SWISusceptibility-weighted image and hand-traced vein mask of a healthy young adult: Ward PGD et al., Monash University, "Vein Mask Data S1" (bridges.monash.edu 3593115), 3 T, 0.9 mm. CC0. Registered to MNI space; the veins shown are the traced mask, named by proximity to atlas waypoints. The waypoints themselves come from the VENAT venous atlas (Huck J et al., Brain Struct Funct 2019, CC BY 4.0). No open MR venogram exists, so SWI stands in: veins are dark on it.
• CTNon-contrast head CT of one adult from BrainCT-1mm (484 scans, Philips iCT 256, 1 mm helical), part of the CADS collection, Istanbul Medipol University, on Hugging Face (mrmrx/CADS-dataset, folder 0042_new_brainct_1mm). CC BY 4.0. Scan 100, registered to MNI space, shown in brain and bone windows.
• CTAHead and neck CT angiogram of a 33-year-old woman without aneurysm (study 141): Blagosklonova E, Dolotova D, Polunina N, et al. Open dataset of annotated DICOM images of head CTA for intracranial aneurysm detection. Zenodo 2025, doi:10.5281/zenodo.15697196. CC BY 4.0. Toshiba Aquilion, 120 kVp, 0.5 mm, registered to MNI space, vascular window.
• ConnectionsSupply, parent structures, projections and clinical associations come from the CNS Atlas knowledge graph (version ). The graph is incomplete and has not undergone documented full expert review.
• Teaching cardsDrafted for CNS Atlas in November 2026 and awaiting Brooke's clinical review. They summarise standard neuroanatomy and neuroradiology teaching; they are not individual patient advice.
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