Isosurface-based generation of hulls encompassing neuronal pathways

Area of Science:

• Neurosurgery
• Medical Imaging
• Computational Anatomy

Background:

• Diffusion tensor imaging (DTI) maps white matter tracts in the brain.
• Accurate DTI tractography is crucial for neurosurgery to prevent neurological deficits.
• Current streamline tract representations are insufficient for intraoperative neuronavigation.

Purpose of the Study:

• To develop an adequate hull representation of white matter tracts for intraoperative neurosurgical guidance.
• To enhance the safety and precision of neurosurgical procedures by improving visualization.

Main Methods:

• A novel hull generation approach based on rasterization and isosurface extraction.
• Integration of surface filtering techniques for robust hull creation.
• Controllable tightness of hull wrapping around streamline bundles.

Main Results:

• Precise hulls were generated for various white matter tract systems.
• The generated hulls are suitable for intraoperative visualization in operating room microscopes.
• Distance measurements validated the accuracy of the generated hulls.

Conclusions:

• The presented hull approach provides accurate and robust representations of white matter tracts.
• This method enhances intraoperative guidance in neurosurgery by enabling visualization of tract boundaries.
• The technique holds potential for improving surgical outcomes by minimizing risks associated with white matter tract damage.