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    Magnetic resonance diffusion tractography of the preterm infant brain: A systematic review

    Access Status
    Open access via publisher
    Authors
    Pannek, K.
    Scheck, S.
    Colditz, P.
    Boyd, Roslyn
    Rose, S.
    Date
    2014
    Type
    Journal Article
    
    Metadata
    Show full item record
    Citation
    Pannek, K. and Scheck, S. and Colditz, P. and Boyd, R. and Rose, S. 2014. Magnetic resonance diffusion tractography of the preterm infant brain: A systematic review. Developmental Medicine and Child Neurology. 56 (2): pp. 113-124.
    Source Title
    Developmental Medicine and Child Neurology
    DOI
    10.1111/dmcn.12250
    ISSN
    0012-1622
    School
    School of Occupational Therapy and Social Work
    URI
    http://hdl.handle.net/20.500.11937/5839
    Collection
    • Curtin Research Publications
    Abstract

    Aim: Preterm birth is associated with an increased risk of adverse neurodevelopmental outcomes. Diffusion magnetic resonance imaging (dMRI) combined with tractography can be used to assess non-invasively white matter microstructure and brain development in preterm infants. Our aim was to conduct a systematic review of the current evidence obtained from tractography studies of preterm infants in whom MRI was performed up to term-equivalent age. Method: Databases were searched for dMRI tractography studies of preterm infants. Results: Twenty-two studies were assessed. The most frequently assessed tracts included the corticospinal tract, the corpus callosum, and the optic radiations. The superior longitudinal fasciculus, and the anterior and superior thalamic radiations were investigated less frequently. A clear relationship exists between diffusion metrics and postmenstrual age at the time of scanning, although the evidence of an effect of gestational age at birth and white matter injury is conflicting. Sex and laterality may play an important role in the relationship between diffusion metrics, early clinical assessment, and outcomes. Interpretation: Studies involving infants of all gestational ages are required to elucidate the relationship between gestational age and diffusion metrics, and to establish the utility of tractography as a predictive tool. There is a need for more robust acquisition and analysis methods to improve the accuracy of assessing development of white matter pathways. © 2013 Mac Keith Press.

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