Fetal evaluation of spine dysraphism

Area of Science:

• Medical imaging
• Pediatric neurology
• Developmental biology

Background:

• Spinal dysraphism, or neural tube defects (NTD), are congenital spinal anomalies from defective neural tube closure.
• These defects involve anomalous development of the caudal cell mass during early gestation.
• Accurate diagnosis is essential for effective perinatal management and potential fetal therapy.

Purpose of the Study:

• To highlight advances in diagnostic imaging for spinal dysraphism.
• To emphasize the critical role of prenatal diagnosis in managing spinal anomalies.
• To discuss the impact of imaging on fetal therapy and counseling.

Main Methods:

• Utilizing advanced prenatal ultrasound (US) with high-frequency transducers and 3D imaging.
• Employing Magnetic Resonance (MR) imaging to detail spinal and associated central nervous system (CNS) anomalies.
• Considering 3D Computed Tomography (CT) for third-trimester fetal spine assessment.

Main Results:

• Prenatal US provides detailed information on spinal anomalies.
• MR imaging complements US by elucidating spine, CNS, and non-CNS abnormalities.
• 3D CT shows promise for assessing fetal spine anomalies in late gestation.

Conclusions:

• Advances in ultrasound and MRI have significantly improved the diagnosis and therapy of spinal dysraphism.
• Accurate prenatal diagnosis is critical for appropriate counseling and perinatal management, especially with the advent of fetal therapy.
• Multimodality imaging approaches enhance the comprehensive evaluation of spinal dysraphism and associated anomalies.