Magnetic resonance imaging of the fetal spine is a vital complement to fetal sonographic examination. Assessing the wide spectrum of spinal dysraphism, as well as spinal neoplasia, allows for more correct prenatal diagnoses, patient care planning, and patient counselling. Proper appraisal of the value of experimental procedures, such as fetal myelomeningocoele repair, requires a high level of diagnostic accuracy for the selection and follow-up of appropriate candidates.
Fig. 5 Terminal myelocystocoele. a Sagittal HASTE of the lumbar region in a 21-WG fetus shows the relatively thickwalled sac protruding through the lumbar dysraphism. No neural elements can be seen within the sac. b Axial HASTE at the level of the osseous defect shows the splitting of the spinal cord around the markedly dilated central canal (arrows), distinguishing the terminal myelocystocoele from the MMC