Identification and interpretation of microstructural abnormalities in motor pathways in adolescents born preterm
NeuroImage(2014)
摘要
There has been extensive interest in assessing the long-term effects of preterm birth on brain white matter microstructure using diffusion MRI. Our aim in this study is to explore diffusion MRI differences between adolescents born preterm and term born controls, with a specific interest in characterising how such differences are manifested in white matter regions containing predominantly single or crossing fibre populations. Probabilistic high angular resolution tractography together with large deformation spatial normalisation were used to objectively investigate diffusion tensor parameters at regular intervals along fibre tracts of 45 adolescents born before 33weeks of gestation and 30 term-born typically developing adolescents.
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关键词
Preterm,DTI,HARDI,Motor system,Crossing fibres,Fractional anisotropy
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