Role of Neonatal Behavioral Neurological Assessment combined with magnetic resonance diffusion tensor imaging in evaluating white matter development in preterm infants

ZHANG Xiao-Li; LIU Yan-Chao; XIA Lei; XU Fa-Lin

doi:10.7499/j.issn.1008-8830.2106005

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Chinese Journal of Contemporary Pediatrics ›› 2021, Vol. 23 ›› Issue (9) : 916-921. DOI: 10.7499/j.issn.1008-8830.2106005

CLINICAL RESEARCH

Role of Neonatal Behavioral Neurological Assessment combined with magnetic resonance diffusion tensor imaging in evaluating white matter development in preterm infants

ZHANG Xiao-Li, LIU Yan-Chao, XIA Lei, XU Fa-Lin

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Abstract

Objective To study the correlation of fractional anisotropy (FA) on magnetic resonance diffusion tensor imaging with Neonatal Behavioral Neurological Assessment (NBNA) score in preterm infants, and to study the role of FA in evaluating white matter development from the perspective of imaging. Methods A prospective study was performed for 98 preterm infants who were admitted to the Neonatal Intensive Care Unit of the Third Affiliated Hospital of Zhengzhou University within 24 hours after birth from October 2016 to January 2020. According to the results of NBNA, they were divided into an abnormal group with 51 infants (NBNA score <37) and a normal group with 47 infants (NBNA score ≥37). The FA values of 10 regions of interest were collected and compared between the two groups. The correlations of FA value and umbilical arterial blood gas pH value with the NBNA score were analyzed. Results Compared with the normal group, the abnormal group had significantly lower FA value of the posterior limb of the internal capsule and umbilical arterial blood pH (P<0.05). The FA value of the posterior limb of the internal capsule and umbilical arterial blood pH were positively correlated with the NBNA score (r=0.584 and 0.604 respectively, P<0.001), and the FA value of the posterior limb of the internal capsule was positively correlated with umbilical arterial blood pH (r=0.426, P<0.05). Conclusions The FA value of the posterior limb of the internal capsule can quantitatively reflect white matter development in preterm infants and is correlated with the NBNA score. The combination of the two indices can help to evaluate white matter development in preterm infants more accurately and objectively. Citation:

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White matter development / Diffusion tensor imaging / Fractional anisotropy / Neonatal Behavioral Neurological Assessment / Preterm infant

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ZHANG Xiao-Li, LIU Yan-Chao, XIA Lei, XU Fa-Lin. Role of Neonatal Behavioral Neurological Assessment combined with magnetic resonance diffusion tensor imaging in evaluating white matter development in preterm infants[J]. Chinese Journal of Contemporary Pediatrics. 2021, 23(9): 916-921 https://doi.org/10.7499/j.issn.1008-8830.2106005

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