Figure 1

Volume of the myelomeningocele: ultrasound measurements. (A) Sagittal view of a myelomeningocele at 20 weeks of gestation: length. (B) Transversal view of a myelomeningocele at 20 weeks of gestation: width and depth. (C) Volume of the myelomeningocele: prolate ellipsoid volume: length × width × depth × 0.52.