Two-point reconstruction
The core workflow is simple: click the deepest contact and the most superficial contact of the same electrode on any slice view. NeuXelec uses the electrode's known inter-contact spacing to automatically estimate every contact in between along the trajectory.
- Works on axial, coronal, or sagittal views: any view, any time
- Optional local-max snapping to peak CT intensity for sub-voxel accuracy
- Estimates are shown immediately in all three views and in 3D
- Any contact can be manually adjusted after estimation
Synchronized orthogonal views
Axial, coronal, and sagittal CT slices are shown simultaneously with a shared crosshair. Clicking in any view moves the crosshair in all three. Navigate to any contact in one click.
Per-electrode properties
Each electrode gets a name, hemisphere assignment (L/R), contact count, inter-contact distance, and a custom colour. Contacts are numbered automatically from deepest to shallowest.
All SEEG configurations
Electrode reference files are pre-loaded for all Dixi Medical SEEG electrodes, covering the full range of contact counts and spacings. It is also possible to define a custom electrode by specifying contact count, inter-contact distance, and skipped contacts. Parameters auto-fill from the reference once selected.
Implantation plan
Load the neurosurgeon's NeuroInspire plan and NeuXelec reads it directly, with no database and no proprietary tool. The planned trajectories can then be displayed in the 3D scene next to the electrodes actually implanted. When you pick the deepest contact of a new electrode, the nearest planned trajectory of that hemisphere is proposed with its name, its hemisphere and its Dixi reference; after the second pick, a divergence of more than 25 degrees between the reconstructed axis and the planned direction is reported. The plan never moves your picks: the contacts always come from the CT.
Coordinate export
Export all contact positions as TXT, CSV, TSV or JSON, as a BIDS dataset (native T1w or MNI152, with optional defacing), or in the formats used by other tools: Cartool ELS and iELVIS (electrodeNames, LEPTO, LEPTOVOX). Coordinates are given in voxel indices and physical LPS or RAS millimetres. MNI coordinates are added after normalization.
Display & navigation
- Mouse wheel to zoom; shift+wheel to scroll slices
- Drag to move crosshair; shift+drag to pan zoomed view
- Double-click to reset view
- Radiologic or neurologic orientation (flip L/R)
- Ctrl+D sends current crosshair position to the 3D view as a marker
- All reconstructed contacts are shown as coloured dots on every slice