Neonatal Asymmetry between Preterm and Term Neonates:An MRI Structural Network Study
Jing Wang 1,2 , Mengye Lyu 1,2 , Jie Gao 1 , Yumiao Zhang 1 , Yanyah Li 1 , Qinli Sun 1 , and Jian Yang 1,2
Department of Diagnostic Radiology, The
First Hospital of Medical School, Xian Jiaotong
University, Xi'an, Shaanxi, China,
of Biomedical Engineering, School of Life Science and
Technology, Xi'an Jiaotong University, Xi'an, Shaanxi,
Recent studied have demonstrated that neonatal brain
networks have hemispheric asymmetry. However, changes of
the asymmetry are not yet understood between preterm and
term neonates. Our study compared network parameters of
cerebral hemispheres between preterm and term neonates.
The results showed more evident leftward asymmetry on
term neonates with more efficient information transfer
than preterm neonates. Moreover, comparing
lateralization index of betweenness centrality in the
cerebral hemispheres of preterm and term neonates, we
concluded for term neonatal brain, left hemisphere has
preferably evolved into regions with visual and language
function while lateralized regions with cognitive
functions come out in the right hemisphere.
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