Effects of White Matter Injury on Resting State fMRI Measures in Prematurely Born Infants

PLoS One

Joshua S. Shimony¹  Christopher D. Smyser¹  Abraham Z. Snyder²  Tyler M. Blazey³  Terrie E. Inder³  Jeffrey J. Neil³ 

[1] Department of Neurology, Washington University, Saint Louis, Missouri, United States of America;Department of Pediatrics, Washington University, Saint Louis, Missouri, United States of America;Mallinckrodt Institute of Radiology, Washington University, Saint Louis, Missouri, United States of America

关键词: African American people;    Central nervous system;    Infants;    Brain damage;    Neuroimaging;    Functional magnetic resonance imaging;    Magnetic resonance imaging;    Hemorrhage;   

DOI  :  10.1371/journal.pone.0068098

学科分类：医学（综合）

来源: Public Library of Science

【 摘 要 】

The cerebral white matter is vulnerable to injury in very preterm infants (born prior to 30 weeks gestation), resulting in a spectrum of lesions. These range from severe forms, including cystic periventricular leukomalacia and periventricular hemorrhagic infarction, to minor focal punctate lesions. Moderate to severe white matter injury in preterm infants has been shown to predict later neurodevelopmental disability, although outcomes can vary widely in infants with qualitatively comparable lesions. Resting state functional connectivity magnetic resonance imaging has been increasingly utilized in neurodevelopmental investigations and may provide complementary information regarding the impact of white matter injury on the developing brain. We performed resting state functional connectivity magnetic resonance imaging at term equivalent postmenstrual age in fourteen preterm infants with moderate to severe white matter injury secondary to periventricular hemorrhagic infarction. In these subjects, resting state networks were identifiable throughout the brain. Patterns of aberrant functional connectivity were observed and depended upon injury severity. Comparisons were performed against data obtained from prematurely-born infants with mild white matter injury and healthy, term-born infants and demonstrated group differences. These results reveal structural-functional correlates of preterm white matter injury and carry implications for future investigations of neurodevelopmental disability.

【 授权许可】

CC BY