diffusion tensor imaging
Advanced MRI technique that maps white matter fiber tracts to guide surgical planning and minimize functional damage.
Full Definition
Diffusion tensor imaging (DTI) is an advanced MRI technique that measures the diffusion of water molecules along white matter fiber tracts in the brain. In neurosurgical oncology, DTI provides critical information about the relationship between tumors and important white matter pathways, allowing surgeons to plan approaches that maximize tumor resection while preserving essential neural connections. DTI data can be integrated with surgical navigation systems to provide real-time guidance during tumor removal. This technology is particularly valuable when operating near motor, sensory, or language pathways. Editorial staff should understand DTI represents sophisticated pre-operative planning rather than a treatment modality itself.
Usage
Usage note: Can be abbreviated as DTI after first use. Distinguish from standard diffusion-weighted imaging (DWI).
In Context
- "Diffusion tensor imaging revealed displacement rather than infiltration of the corticospinal tract." — Pre-operative imaging report
- "The surgical approach was modified based on diffusion tensor imaging showing proximity to language pathways." — Surgical planning note