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Abstract #4625

Gender Specific Effects on the Development of White Matter Tracts after Preterm Birth

Devasuda Anblagan 1,2 , Mark E Bastin 3 , Sarah Sparrow 2 , Chinthika Piyasena 4 , Rozi Pataky 5 , Emma Moore 2 , Graham Wilkinson 5 , Neil Roberts 1 , Scott I Semple 1,4 , and James P Boardman 2

1 Clinical Research Imaging Centre, University of Edinburgh, Edinburgh, United Kingdom, 2 MRC Centre for Reproductive Health, University of Edinburgh, Edinburgh, United Kingdom, 3 Centre for Clinical Brain Sciences, University of Edinburgh, Edinburgh, United Kingdom, 4 Centre for Cardiovascular Sciences, University of Edinburgh, Edinburgh, United Kingdom, 5 NHS Lothian, Edinburgh, United Kingdom

Preterm delivery affects 11% of all live births and is a leading cause of neurodevelopmental impairment and suboptimal educational achievement in childhood. Some of the adverse neurodevelopmental sequelae of preterm birth are gender-specific and may be neuroprotective strategies: preterm males have a worse neurodevelopmental outcome than females. We present the first application of an automatic single seed point tractography-based segmentation method, probabilistic neighborhood tractography, to study the gender specific effect on developing white matter tracts in preterm infants. Our work demonstrates increased diffusivities and reduced fractional anistropy in the cingulum cingulate gyri of female preterm infants compared with male equivalents.

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