NeuroLogic

Epilepsy Brain Atlas

fsaverage 3D · CerebrA MRITeaching referenceSEEG lead naming ↗← NeuroLogic
Interactive anatomy
Left standard placements
3D · fsaverage / MNI305
Building your atlas view…
View angle
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L✣R
I
Drag to rotate · Scroll to zoom · Select an electrode or contact
Highlighted on the 3D brain

Left standard placements

MRI reference loading

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REFERENCE
CerebrA MNI2009c T1 and regional labels
AXIAL R ← → L
Anterior ↑
CORONAL R ← → L
Superior ↑
SAGITTAL A ← → P
Superior ↑
CerebrA MRI reference

CerebrA MRI cursor · MNI2009c
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Representative atlas location; never a patient or electrode coordinate.

This MRI crosshair shows a representative point in the named region. The MNI305 contact coordinate is in a different template and is not projected onto these sections.

Click a structure on any MRI slice to highlight it here and in the 3D brain. The crosshair marks the clicked atlas voxel.

Resolution and coverage

Scenario electrodes
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Thalamic nuclei Add anatomy · Morel reference
Select a nucleus independent of example implants
Neuromodulation shows ANT and pulvinar by default. Select one to isolate it, or add CM and PuM. Approximate reference overlay; no implant localization.
Layers and visibility
Cortex
Color
Deep structures
Implants and anatomy
Compare sampled regions
Contact options in supplied examples

Choose a deepest gray matter region and an outer gray matter region to find existing example leads. This atlas cannot test whether a new path is anatomically feasible.

Highlighted anatomy
i3D paths and contact centers are illustrative in fsaverage MNI305. MRI sections show a separate CerebrA MNI2009c template. Neither is patient imaging or a surgical plan.
CerebrA MRI region reference · MNI2009c

MRI review

Atlas location, not a patient or electrode coordinate
AXIAL R ← → L
Anterior ↑
CORONAL R ← → L
Superior ↑
SAGITTAL A ← → P
Superior ↑
Model notes

What you are looking at

FreeSurfer shows the supplied fsaverage cortical surface, Desikan–Killiany labels, aseg deep structures, and generated illustrative paths and contacts. The Atlas regions tab highlights fsaverage labels directly. This 3D model uses MNI305 coordinates. Its examples include stereo EEG (SEEG) leads, a laser fiber, hippocampal neuromodulation leads, CM markers, and bilateral ANT and pulvinar nucleus reference shapes.

CerebrA atlas shows CerebrA parcels and a population-average T1 in the symmetric MNI-ICBM152 2009c space. Its SEEG examples view highlights named regions corresponding to supplied FreeSurfer leads and gray matter contacts; it does not draw those contacts or paths at unregistered CerebrA positions. The MRI crosshair is a representative CerebrA voxel, not a contact location. The two coordinate readouts must not be compared as aligned positions.

Internal, external, and medial views group whole atlas parcels for teaching. Some broad parcels span more than one surface. CerebrA ventricle labels are excluded from region highlights; deep anatomy layers can be shown separately in the FreeSurfer view. These groups are not lead endpoint definitions or surgical corridors.

Thalamic nuclei are derived from the 1 mm voxelized Morel atlas in its own MNI152 template. ANT combines anterior dorsal (AD), anterior medial (AM), and anterior ventral (AV); CM is the centromedian nucleus; pulvinar combines PuA, PuI, PuL, and PuM. PuM can be highlighted separately. Their native coordinates are overlaid approximately on the MNI305 brain and MNI2009c MRI, without inter-template registration. The example leads and markers have not been localized to these nuclei. The masks are teaching references, not patient-specific targets or treatment volumes.

Both models represent template anatomy. No patient lesion, vessel map, functional boundary, or white matter tract is loaded. The 3D paths, contacts, ablation capsule, and deep markers are illustrations, not validated clinical trajectories, implant positions, or treatment volumes.

Patient-specific stereo EEG and surgical planning require individualized imaging, registration, hypothesis, and multidisciplinary review. This explorer cannot evaluate trajectory safety or distance to vessels and eloquent tissue.

Primary sources
FreeSurfer coordinate systems ↗Manera et al., CerebrA, Scientific Data (2020) ↗Original CerebrA atlas dataset and CC0 license ↗Voxelized Morel thalamus atlas (CC BY-NC-SA 4.0) ↗Morel attribution and adaptation details ↗McGill MNI template and mask ↗Planning and management of stereo EEG ↗ILAE epilepsy MRI consensus ↗