Diffusion tensor imaging and traumatic brain injury.

Blood-oxygen-level-dependent- functional magnetic resonance imaging and diffusion tensor imaging in traumatic brain injury research

Diffusion tensor imaging in an infant with traumatic brain swelling.

We present the case of a 14-month-old male infant who underwent diffusion tensor imaging within 24 hours of traumatic brain injury. Although conventional MR findings that included those of diffusion-weighted imaging were unremarkable, full-tensor diffusion imaging revealed striking abnormalities in regions of brain that subsequently developed overt swelling. This case engenders important hypoth...

Diffusion tensor MR imaging in diffuse axonal injury.

BACKGROUND AND PURPOSE Disruption of the cytoskeletal network and axonal membranes characterizes diffuse axonal injury (DAI) in the first few hours after traumatic brain injury. Histologic abnormalities seen in DAI hypothetically decrease the diffusion along axons and increase the diffusion in directions perpendicular to them. DAI therefore is hypothetically associated in the short term with de...

The contribution of gliosis to diffusion tensor anisotropy and tractography following traumatic brain injury: validation in the rat using Fourier analysis of stained tissue sections.

Diffusion tensor imaging is highly sensitive to the microstructural integrity of the brain and has uncovered significant abnormalities following traumatic brain injury not appreciated through other methods. It is hoped that this increased sensitivity will aid in the detection and prognostication in patients with traumatic injury. However, the pathological substrates of such changes are poorly u...

Identification of Imaging and Clinical Markers Predicting Chronic Sleep Disturbances After Traumatic Brain Injury in Adults

Background and Aim: We aimed to determine the prognostic imaging and clinical markers of chronic Post-Traumatic Sleep-Wake Disorders (PTSWDs) with a special focus on the early cognitive and executive dysfunctions following Traumatic Brain Injury (TBI). The prevalence rate of Post-Traumatic Psychiatric Disorders (PTPDs) in various sleep disorders was also investigated. Methods and Materials/Pat...

Diffusion weighted and diffusion tensor imaging: A clinical guide.

Diffusion-weighted imaging (DWI) is an integral part of routine neuroimaging, used nearly universally in brain MRIs, and more recently for the spine, spinal cord, and head and neck. DWI provides clinically relevant information on conditions including stroke, infection, and neoplasms. Diffusion tensor imaging (DTI) is a powerful, newer technique with the potential for multiple protocols, includi...