tractography
Pronunciation: /trækˈtɒɡrəfi/
Computational technique that reconstructs white matter fiber pathways using diffusion tensor imaging data.
Full Definition
Tractography is a computational neuroimaging technique that uses diffusion tensor imaging (DTI) or diffusion spectrum imaging data to reconstruct and visualize white matter fiber pathways in the brain. This method tracks the principal direction of water diffusion to map the three-dimensional architecture of white matter tracts, providing insights into brain connectivity and structural organization. Tractography is valuable for presurgical planning, particularly for procedures near eloquent brain areas, and for research into connectivity changes in neurological and psychiatric disorders. However, the technique has inherent limitations and requires careful interpretation of results.
Usage
Usage note: One word, not hyphenated; distinguish from anatomical tract identification.
In Context
- "Tractography demonstrated disruption of the corticospinal tract adjacent to the tumor." — Presurgical planning report
- "The tractography analysis revealed altered connectivity patterns in the patient cohort." — Research manuscript