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Published on: January 7, 2021
Diffusion-weighted imaging in fetuses with severe congenital heart defects
J I Berman1, S E G Hamrick, P S McQuillen
1Department of Radiology, University of California, San Francisco, USA.
AJNR. American Journal of Neuroradiology
|January 16, 2010
Summary
Fetal diffusion MRI reveals altered brain development in fetuses with congenital heart disease (CHD). Higher diffusivity in white matter and thalamus suggests abnormal in utero brain maturation in these infants.
Area of Science:
- Neuroimaging
- Developmental Biology
- Pediatric Cardiology
Background:
- Congenital heart disease (CHD) can impact fetal development.
- Diffusion Magnetic Resonance Imaging (dMRI) assesses water molecule movement, reflecting tissue microstructure.
- Understanding in utero brain development is crucial for CHD management.
Observation:
- dMRI was utilized in three fetuses diagnosed with CHD.
- Apparent Diffusion Coefficient (ADC) values were measured in key brain regions: periatrial white matter, thalamus, and basal ganglia.
- A control group of healthy fetuses was used for comparison.
Findings:
- Fetuses with CHD exhibited significantly higher diffusivity in the periatrial white matter compared to controls.
- Elevated diffusivity was also observed in the thalamus of fetuses with CHD.
- No significant difference was noted in the basal ganglia diffusivity between groups.
Implications:
- These findings suggest abnormal white matter and thalamic development in utero for fetuses with CHD.
- Altered brain maturation may have long-term neurological consequences for children with CHD.
- Early detection of developmental changes via fetal dMRI could inform clinical interventions and prognoses.
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