01-05-2013 | Original Article
Radiologic differences in white matter maturation between preterm and full-term infants: TBSS study
Published in: Pediatric Radiology | Issue 5/2013
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Background
Widespread white matter (WM) pathology in preterm children has been proposed.
Objective
The purpose of this study was to investigate maturational differences of WM between preterm infants with thinning of the corpus callosum and full-term infants.
Materials and methods
A total of 18 preterm children and 18 full-term children were divided into three subgroups according to the corrected age at the time of diffusion tensor imaging scanning. Tract-based spatial statistics was used for assessing differences in fractional anisotropy (FA) between preterm and full-term children, and between each age-related subgroup in preterm and in full-term children.
Results
In the preterm group, FA values of overall WM showed an increase with age. This trend indicates that WM maturation is a gradual occurrence during a child’s first 2 years. In the full-term group, most WM structures had reached maturation at around 1 year of age; however, centrum semiovale level showed sustained maturation during the first 2 years.
Conclusion
Results of our study demonstrate radiologic maturational differences of WM and provide evidence of the need for therapeutic intervention within 2 years of birth to prevent specific functional impairment and to improve clinical outcome in preterm children.