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Related Experiment Video

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Human Fetal Blood Flow Quantification with Magnetic Resonance Imaging and Motion Compensation
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Volumetric Brain MRI Study in Fetuses with Intrauterine Growth Restriction Using a Semiautomated Method.

R Peretz1, T Halevy2, M Gafner3,4

  • 1From the Sackler School of Medicine (R.P., M.G., S.F., Y.R., A.M., E.K.), Tel Aviv University, Tel Aviv, Israel reutperetz1@gmail.com.

AJNR. American Journal of Neuroradiology
|October 6, 2022
PubMed
Summary

Intrauterine growth restriction (IUGR) reduces fetal brain structure volumes. However, IUGR's impact on birth weight is more pronounced than its effect on brain development, suggesting a brain-sparing mechanism.

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Area of Science:

  • Medical imaging
  • Fetal development
  • Neurology

Background:

  • Intrauterine growth restriction (IUGR) is linked to abnormal fetal brain development.
  • Quantitative assessment of brain structure volumes in IUGR fetuses is crucial.

Purpose of the Study:

  • To compare fetal brain structure volumes in IUGR fetuses versus controls.
  • To analyze the impact of IUGR on birth weight relative to brain structure volumes.

Main Methods:

  • Historical cohort study of 26 IUGR fetuses and 66 controls.
  • MR imaging used to measure supratentorial brain, hemispheres, and cerebellum volumes.
  • Semiautomatic volumetry and percentile calculations applied.

Main Results:

  • All measured fetal brain structures were significantly smaller in the IUGR group (P < .015).
  • No significant difference in the cerebellum/supratentorial brain ratio was observed.
  • The reduction in brain volume percentiles was less than that of birth weight percentiles.

Conclusions:

  • Quantitative MR imaging confirms IUGR affects fetal brain structure volumes.
  • Birth weight is more affected by IUGR than brain structures, indicating a brain-sparing effect.