An Audit of the Posterior Fossa Characterization in Open Spina Bifida Based on Tertiary Center Experience

Inclusion Criteria: * patients were those having fetal MR examination for additional assessment because of the prenatal diagnosis of SBA on ultrasound. * appropriate gestational age - matched controls. The latter were fetuses assessed for other congenital anomalies, which do not affect the central nervous system (CNS) or were scanned for suspected CNS abnormalities with normal prenatal US, fetal MR and normal postnatal evaluation Exclusion Criteria: * twin pregnancy, syndromal pathology, fetal hydrops or anhydramnios. * poor image quality