Recommendations regarding imaging of the central nervous system in fetuses and neonates

Area of Science:

• Neuroscience
• Developmental Biology
• Radiology

Background:

• Fetal central nervous system (CNS) anomalies detected during screening necessitate further investigation to determine their cause.
• Preterm neonates face a high risk of early brain damage due to their immaturity, making timely imaging crucial.
• Understanding normal fetal brain development is fundamental for interpreting imaging findings accurately.

Purpose of the Study:

• To outline the normal sequence of fetal brain development.
• To present intrauterine and postnatal risk factors for early brain damage.
• To detail the classification and diagnostic approach for CNS lesions in neonates, including cerebellar damage linked to autism.

Main Methods:

• Review of normal fetal brain development.
• Analysis of intrauterine and postnatal risk factors for brain injury.
• Classification of hemorrhagic and hypoxic-ischemic brain lesions.
• Emphasis on diagnostic imaging techniques, including ultrasound and magnetic resonance imaging (MRI).

Main Results:

• Knowledge of normal development aids in interpreting abnormal fetal CNS findings.
• Identification of key risk factors and lesion types (hemorrhagic, hypoxic-ischemic) is essential.
• Cerebellar damage diagnosis is highlighted as potentially linked to autism.
• Imaging standards and indications for advanced diagnostics like MRI are provided.

Conclusions:

• Accurate interpretation of fetal CNS imaging relies on understanding normal development.
• Early detection and classification of brain lesions are critical for prognosis in neonates.
• Established imaging protocols guide diagnosis and management of fetal and neonatal brain abnormalities.