Document Detail


Cerebral MRI of very low birth weight children at 6 years of age compared with the findings at 1 year.
MedLine Citation:
PMID:  9634467     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
BACKGROUND: We have previously reported the results of cerebral MRI examinations in an unselected year cohort of very low birth weight (VLBW) infants at one year of corrected age. Twenty-one (78 %) of 27 infants had abnormal myelination, mainly in the central occipital white matter (COWM) and in the centrum semiovale (CS), seen on T2-weighted images. Twelve infants had irregular and dilated lateral ventricles. We speculated whether these findings indicated perinatal periventricular leukomalacia (PVL). Only two infants had completely normal MRI at age 1 year. OBJECTIVE: To determine whether the abnormal myelination seen at 1 year of age, was still present, either as delayed myelination or as gliosis caused by perinatal PVL. MATERIALS AND METHODS: In the present study, we report the results of follow-up cerebral MRI in 20 of these infants at 6 years of age. RESULTS: Most of the children with MRI deviations at 1 year still had abnormalities at 6 years. Abnormal myelination in the central occipital white matter combined with abnormalities in the CS or with ventricular dilatation at age 1 year, presented as gliosis in 12 of 13 children at 6 years of age. Abnormalities solely in the COWM at age 1 year had normalised in two of five children and persisted as delayed myelination in three at age 6 years. Gliotic changes in periventricular white matter were found in 12 of 20 children (60 %). Areas most affected were the CS (11 children) and the COWM (9 children). Delayed myelination in COWM was found in six children (30 %), combined with gliosis in CS in three children. Twelve infants had ventricular dilatation both at 1 and 6 years of age. CONCLUSIONS: The MRI correlates of PVL, i. e. gliosis and ventricular dilatation, are common findings on cerebral MRI at 6 years of age in VLBW infants.
Authors:
J S Skranes; G Nilsen; O Smevik; T Vik; A M Brubakk
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Publication Detail:
Type:  Comparative Study; Journal Article    
Journal Detail:
Title:  Pediatric radiology     Volume:  28     ISSN:  0301-0449     ISO Abbreviation:  Pediatr Radiol     Publication Date:  1998 Jun 
Date Detail:
Created Date:  1998-08-14     Completed Date:  1998-08-14     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  0365332     Medline TA:  Pediatr Radiol     Country:  GERMANY    
Other Details:
Languages:  eng     Pagination:  471-5     Citation Subset:  IM    
Affiliation:
Department of Pediatrics and Neonatal Medicine, University Hospital of Trondheim, Norway.
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MeSH Terms
Descriptor/Qualifier:
Brain / pathology*
Child
Cohort Studies
Follow-Up Studies
Humans
Infant
Infant, Newborn
Infant, Very Low Birth Weight*
Leukomalacia, Periventricular / diagnosis*
Magnetic Resonance Imaging
Time Factors

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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