The research of myelinization of normal fetal brain with magnetic resonance imaging

摘要

Conclusions There was no myelinization of fetal cerebral (except basal ganglia) and cerebellar matter during pregnant period. The myelin sheath was formed in the brain stem and basal ganglia after 29 gestational weeks. The process of myelinization began from brain stem to basal ganglia. Objective To investigate the growth and devel- Opment of myelin of sheath fetal brain. Methods Forty-four cases of pregnant women Were imaged with magnetic resonance (MR) at 0.35 T (tesla). The signal changes of the main structures of fetal brain were analyses.