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Diffusion Tensor Magnetic Resonance Imaging in the Analysis of Neurodegenerative Diseases
Published on: July 28, 2013
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Preterm Neonates Exhibit a "Catch-Up" Pattern in Motor Development During the Neonatal Period: A Diffusion Tensor
Yuying Feng1, Yannan Cheng1, Xianjun Li1
1Department of Radiology, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China; Shaanxi Engineering Research Center of Computational Imaging and Medical Intelligence, Xi'an, China.
Pediatric Neurology
|January 29, 2025
Summary
Preterm infants show delayed but improving sensorimotor function, with brain white matter development catching up postnatally. This early characterization aids in identifying high-risk infants for neurodevelopmental disability.
Area of Science:
- Neuroscience
- Developmental Biology
- Medical Imaging
Background:
- Preterm infants face significant risks for neurodevelopmental disabilities.
- Early assessment of brain and neurobehavioral function is crucial for identifying at-risk infants.
- Understanding postnatal age-related changes in white matter and neurobehavior is key.
Purpose of the Study:
- To investigate the early developmental trajectory of sensorimotor function in preterm neonates.
- To explore age-related changes in brain white matter microstructure and neurobehavioral abilities.
- To compare these changes between preterm and term neonates.
Main Methods:
- Diffusion tensor imaging (DTI) was used to assess white matter fractional anisotropy (FA).
- Neonatal neurobehavioral assessments measured active tone and behavior scores.
- Correlations between FA, neurobehavioral scores, and postnatal age were analyzed in specific brain regions.
Main Results:
- Preterm infants had lower FA in selected white matter regions compared to term infants.
- Corticospinal tract (CST) FA correlated more strongly with age in preterm infants.
- Preterm infants showed significant correlations between motor development scores and postnatal age.
Conclusions:
- Preterm neonates demonstrate a pattern of "catch-up" in motor development during the newborn period, despite initial delays.
- These findings highlight the dynamic nature of neurodevelopmental recovery in early life.
- Early DTI and neurobehavioral assessments can track developmental progress in preterm infants.
