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Abnormalities of the foetal cerebral cortex.
Ants Toi1, David Chitayat, Susan Blaser
1Department of Medical Imaging, Mount Sinai Hospital and University Health Network, University of Toronto, Toronto, Ontario, Canada. a.toi@utoronto.ca
Prenatal Diagnosis
|February 25, 2009
Summary
Detailed prenatal brain examination, including neurosonography and MRI, is crucial for detecting subtle cortical abnormalities. Early identification of these subtle findings significantly impacts fetal prognosis and management strategies.
Area of Science:
- Neuroimaging
- Fetal Medicine
- Developmental Neuroscience
Background:
- Prenatal ultrasound traditionally focuses on gross cerebral structures.
- Subtle brain abnormalities can significantly alter fetal prognosis and management.
- Advanced imaging and genetic understanding are revolutionizing fetal brain assessment.
Purpose of the Study:
- To review the development of the fetal cerebral cortex.
- To classify and discuss the aetiologies and clinical manifestations of cortical disorders.
- To outline approaches for investigating fetal brain abnormalities.
Main Methods:
- Review of current literature on fetal cerebral cortex development and disorders.
- Analysis of normal and abnormal appearances on ultrasound and MRI.
- Discussion of diagnostic and investigative approaches.
Main Results:
- Fetal cerebral cortex development is complex and prone to abnormalities.
- Subtle cortical findings, often missed by standard ultrasound, are detectable with advanced imaging.
- A systematic approach combining imaging and genetic evaluation is key.
Conclusions:
- Detailed fetal brain examination beyond superficial structures is essential.
- Early detection of cortical abnormalities via neurosonography and MRI improves management.
- Understanding cortical development aids in diagnosing and managing fetal brain disorders.
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