Keywords: Tractography, Tractography & Fibre Modelling, preoperative planning, ODF-fingerprinting, pyramidal tract, corticospinal tract, brain tumor, BOLD activation, task fMRI
Motivation: Tractography enables preoperative visualization of major neural pathways altered or displaced by a brain tumor; however, it often fails to reconstruct the cortical terminations of corticospinal tracts due to the complex bending and branching formations of fibers.
Goal(s): We aim to improve tracking of corticospinal tracts in their most challenging regions of hand and face projections to the motor cortex.
Approach: We refine reconstruction of fibers inside corticospinal tracts by incorporating ODF-Fingerprinting into the tracking pipeline.
Results: With ODF-Fingerprinting, we increased the overlap between the reconstructed corticospinal tracts and the cortical regions activated during task-based functional MRI involving hand and face movement.
Impact: Our improved reconstruction can help decrease the incidence of postoperative deficits by identifying the structural neural connections that need to be spared during tumor resection.
How to access this content:
For one year after publication, abstracts and videos are only open to registrants of this annual meeting. Registrants should use their existing login information. Non-registrant access can be purchased via the ISMRM E-Library.
After one year, current ISMRM & ISMRT members get free access to both the abstracts and videos. Non-members and non-registrants must purchase access via the ISMRM E-Library.
After two years, the meeting proceedings (abstracts) are opened to the public and require no login information. Videos remain behind password for access by members, registrants and E-Library customers.
Keywords