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Related Experiment Video

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Preterm EEG: A Multimodal Neurophysiological Protocol
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Complementary cortical gray and white matter developmental patterns in healthy, preterm neonates.

Vidya Rajagopalan1, Julia A Scott2, Mengyuan Liu3

  • 1Children's Hospital Los Angeles, and Rudi Schulte Research Institute, Santa Barbara, California.

Human Brain Mapping
|June 14, 2017
PubMed
Summary

This study maps neonatal brain development in preterm infants without brain injury, revealing distinct cortical growth patterns during extrauterine development. Findings detail gray and white matter changes, aiding understanding of altered cognitive development.

Keywords:
MRIbrain mappingpreterm birth

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Area of Science:

  • Neuroscience
  • Developmental Biology
  • Medical Imaging

Background:

  • Preterm birth can lead to brain injury and cognitive deficits.
  • Distinguishing extrauterine development effects from perinatal injury is challenging.

Purpose of the Study:

  • To characterize cortical growth patterns in preterm neonates during extrauterine development.
  • To differentiate normal cortical development from potential injury-related alterations.

Main Methods:

  • Utilized surface-based morphometry to quantify cortical thickness and area change rates.
  • Employed tensor-based morphometry with temporally weighted regression.
  • Analyzed cortical gray matter (GM) and white matter (WM) development from 30 to 46 postmenstrual weeks in 27 preterm infants.

Main Results:

  • Observed spatiotemporal patterns of GM and WM development aligning with gyrification.
  • Identified specific rates of surface area and thickness changes in primary gyri and sulci.
  • Correlated above-average GM surface area rates with the emergence of secondary and tertiary cortical folds.

Conclusions:

  • Successfully mapped neonatal cortical morphometry during extrauterine development using a novel approach.
  • Established a baseline for normal cortical development in preterm infants.
  • Provides a foundation for future comparative studies with preterm infants experiencing brain injury.