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New MR Imaging Assessment Tool to Define Brain Abnormalities in Very Preterm Infants at Term

Open access
Kidokoro, H., Neil, J.J., Inder, T.E.·2013·American Journal of Neuroradiology

Abstract

BACKGROUND AND PURPOSE: WM injury is the dominant form of injury in preterm infants. However, other cerebral structures, including the deep gray matter and the cerebellum, can also be affected by injury and/or impaired growth. Current MR imaging injury assessment scales are subjective and are challenging to apply. Thus, we developed a new assessment tool and applied it to MR imaging studies obtained from very preterm infants at term age. MATERIALS AND METHODS: MR imaging scans from 97 very preterm infants (< 30 weeks' gestation) and 22 healthy term-born infants were evaluated retrospectively. The severity of brain injury (defined by signal abnormalities) and impaired brain growth (defined with biometrics) was scored in the WM, cortical gray matter, deep gray matter, and cerebellum. Perinatal variables for clinical risks were collected. RESULTS: In very preterm infants, brain injury was observed in the WM (n=23), deep GM (n=5), and cerebellum (n=23). Combining measures of injury and impaired growth showed moderate to severe abnormalities most commonly in the WM (n=38) and cerebellum (n=32) but still notable in the cortical gray matter (n=16) and deep gray matter (n=11). WM signal abnormalities were associated with a reduced deep gray matter area but not with cerebellar abnormality. Intraventricular and/or parenchymal hemorrhage was associated with cerebellar signal abnormality and volume reduction. Multiple clinical risk factors, including prolonged intubation, prolonged parenteral nutrition, postnatal corticosteroid use, and postnatal sepsis, were associated with increased global abnormality on MR imaging. CONCLUSIONS: Very preterm infants demonstrate a high prevalence of injury and growth impairment in both the WM and gray matter. This MR imaging scoring system provides a more comprehensive and objective classification of the nature and extent of abnormalities than existing measures.

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Metadata

Authors
Kidokoro, H., Neil, J. J., & Inder, T. E.
Venue
American Journal of Neuroradiology
Published
2013-04-25
Volume
34
Issue
11
Pages
2208-2214
ISSN
  • 0195-6108 (ISSN-L)
  • 1936-959X
OpenAlex
W2147215174
Cited by
473
References
36
FWCI
20.69
Type
journal article
Language
en
Open access
hybrid

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CoChat. (2026). Citation check: New MR Imaging Assessment Tool to Define Brain Abnormalities in Very Preterm Infants at Term. https://app.cochat.ai/papers/10.3174/ajnr.a3521
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Kidokoro, H., Neil, J. J., & Inder, T. E. (2013). New MR Imaging Assessment Tool to Define Brain Abnormalities in Very Preterm Infants at Term. American Journal of Neuroradiology. https://doi.org/10.3174/ajnr.a3521

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