Electrode-localization

Published in Department of Biomedical Engineering, 2025

Algorithms DOI in MATLAB for objectively and automatically localizing intracranial contac, based on CT images, MRI images, and freesurfer segmentation.

Workflow

Implementation

 EntryDescription
01InitializationUse predictive algorithms or manually select initial electrode locations based on CT
02SearchingUse graph-based search with brightness threshold going from high to low until a connected volume is identified
03ValidationThe center of the identified bright cloud is used as electrode centroid. These locations will be exported to freeview for validation
04CustomizationIf the electrode are evenly spaced, based on shank direction, we can initialize without manual selection

Future direction

Achieve non-parametric optimization to maximize dependence on subjective choice.

Challenges