Diffuse damage in pediatric traumatic brain injury: a comparison of automated versus operator-controlled...

Area of Science:

• Neuroimaging
• Pediatric Neurology
• Radiology

Background:

• Traumatic brain injury (TBI) in children can lead to significant structural brain changes.
• Accurate volumetric assessment is crucial for understanding TBI's impact.
• Comparing different image analysis methods is essential for reliable pediatric TBI research.

Purpose of the Study:

• To compare operator-controlled (ANALYZE software) and automated (FreeSurfer) image analysis techniques for evaluating brain atrophy in pediatric TBI.
• To assess the extent of diffuse structural brain changes in children with moderate-to-severe TBI.

Main Methods:

• Volumetric analysis of 18 brain structures and regions of interest (ROIs) in 16 children with TBI and matched controls.
• Comparison of results obtained from operator-controlled quantification and automated FreeSurfer analysis.
• Assessment of agreement and differences in detecting atrophic changes between the two methods.

Main Results:

• Both operator-controlled and automated methods identified brain volume reductions in TBI patients compared to controls.
• Volumes of all measured brain structures/ROIs were smaller in the TBI group.
• The magnitude of detected atrophy varied between methods, with better agreement for subcortical structures. Effect sizes ranged from minimal (caudate, putamen) to moderate/large for others.

Conclusions:

• Both operator-controlled and automated (FreeSurfer) methods are reliable for assessing cross-sectional volumetric changes in pediatric TBI.
• TBI is associated with diffuse structural changes impacting multiple brain regions.
• Findings highlight the widespread structural consequences of TBI in children.