[MRI and in utero ventriculomegaly]

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N Girard1, A Ozanne, K Chaumoitre

  • 1Département d'Imagerie Médicale, AP-HM, hôpital Nord, Université de la Méditerranée, Marseille. nadine.girard@ap-hm.fr

Journal De Radiologie
|January 8, 2004
PubMed

Insights

Fetal brain MRI is crucial for diagnosing ventriculomegaly, identifying causes like malformations and destructive lesions. This review clarifies mechanisms and prognosis for ventricular dilatation, aiding diagnosis and understanding of fetal brain injury.

Area of Science:

  • Neuroimaging
  • Developmental Biology
  • Pediatric Neurology

Context:

  • Ventriculomegaly is a primary indication for fetal brain MRI.
  • Accurate diagnosis relies on identifying malformations and destructive lesions.
  • Understanding mechanisms of ventricular dilatation is critical for fetal assessment.

Purpose:

  • To review the underlying mechanisms and pathophysiology of ventricular dilatation.
  • To highlight diagnostic challenges in fetal brain MRI, including hydrocephalus and isolated ventriculomegaly.
  • To clarify the natural history and prognosis of fetal brain injury associated with ventriculomegaly.

Summary:

  • Fetal brain MRI is essential for detecting causes of ventriculomegaly, primarily malformations and destructive lesions.
  • Challenges include differentiating hydrocephalus from isolated ventriculomegaly and interpreting imaging findings.
  • Irregular ventricular walls or germinal matrix may indicate clastic injury; prognosis for mild cases remains unclear.

Impact:

  • Provides a comprehensive overview of ventricular dilatation mechanisms and pathophysiology.
  • Aims to resolve confusion regarding the prognosis of isolated mild ventriculomegaly.
  • Enhances understanding for clinicians interpreting fetal brain MRI findings.

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