Diffusion tensor imaging of the cingulum bundle in children after traumatic brain injury

Area of Science:

• Neuroscience
• Radiology
• Pediatric Neurology

Background:

• Structural damage to the prefrontal-cingulate network is linked to cognitive and neurobehavioral deficits following traumatic brain injury (TBI).
• Diffusion tensor imaging (DTI) is a neuroimaging technique used to assess white matter integrity.

Purpose of the Study:

• To investigate TBI-related structural damage in the prefrontal-cingulate network using DTI in children.
• To correlate DTI findings with injury characteristics and cognitive control measures.

Main Methods:

• Forty-six children with moderate-to-severe TBI and 43 control children with extracranial injury underwent DTI.
• Analysis focused on fractional anisotropy (FA) and apparent diffusion coefficient (ADC) values in the cingulum bundles.

Main Results:

• Children with TBI exhibited decreased FA and increased ADC values in bilateral cingulum bundles compared to controls.
• Cingulum ADC values correlated with frontal lesion volume, injury severity, and injury mechanism.
• Cingulum DTI parameters were associated with cognitive control performance.

Conclusions:

• DTI can detect TBI-related microstructural injury in the cingulum bundle in children.
• These findings may enhance the assessment and treatment strategies for pediatric TBI.
• Abnormalities in the cingulum are associated with cognitive deficits post-TBI.