期刊
INTERNATIONAL JOURNAL OF DEVELOPMENTAL NEUROSCIENCE
卷 29, 期 2, 页码 137-143出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.ijdevneu.2010.12.003
关键词
Brain injury; MRI; Hippocampus; Amygdala; Morphometry; Children
资金
- National Health and Medical Research Council [284518]
- Canadian Institutes of Health Research
- Thrasher Research Fund
- Lynne Quayle Charitable Fund
- National Institute of Child Health and Human Development
- National Institute on Drug Abuse
- National Institute of Mental Health
- National Institute of Neurological Disorders and Stroke [N01-HD02-3343, N01-MH9-0002, N01-NS-9-2314, -2315, -2316, -2317, -2319, -2320]
Traumatic brain injury (TBI) in children results in damage to the developing brain, particularly in severely injured individuals. Little is known, however, of the long-term structural aspects of the brain following childhood TBI. This study investigated the integrity of the brain 10 years post-TBI using magnetic resonance imaging volumetrics in a sample of 49 participants with mild, moderate and severe TB!, evaluated against a normative sample of 20 individuals from a pediatric database with comparable age and gender distribution. Structural integrity was investigated in gray and white matter, and by manually segmenting two regions of interest (hippocampus, amygdala), potentially vulnerable to the effects of childhood TBI. The results indicate that more severe injuries caused a reduction in gray and white brain matter, while all TBI severity levels resulted in increased volumes of cerebrospinal fluid and smaller hippocampal volumes. In addition, enlarged amygdala volumes were detected in severely injured patients compared to their mild and moderate counterparts, suggesting that childhood TBI may disrupt the development of certain brain regions through diffuse pathological changes. The findings highlight the lasting impact of childhood TBI on the brain and the importance of monitoring brain structure in the long-term after early injury. (C) 2010 ISDN. Published by Elsevier Ltd. All rights reserved.
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