Contribution of magnetic resonance imaging to the prenatal diagnosis of common congenital vascular anomalies

Retrospective study of 24 cases demonstrates MRI modestly improves prenatal diagnosis of lymphatic malformations over ultrasound alone (85% vs 80%), particularly for abdominal lesions, while both modalities show limited accuracy for hemangiomas (25%). MRI's primary value lies in providing detailed anatomical mapping to optimize delivery planning and immediate postnatal management.