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神经管畸形所形成的各种胎儿畸形,若及时发现,有助于临床早期诊断和早期处理.应用B型超声检查,一般不难诊断,在妊娠15周左右即可显示胎头及脊柱情况.下面结合我们的临床经验,谈谈神经管畸形的B超显像特点. 一、脑脊膜膨出一般在孕20周后即可做出诊断.在孕妇腹部做纵向及横向扫查,确定胎头位置和胎方位后,沿胎儿脊柱纵向扫查,可于胎儿枕部、颈部、骶部显示出液性暗区,即膨出的疝囊,膨出部与胎头或脊柱连接处,可见颅板或椎体缺损.若合并脊柱裂,可见正常脊柱呈念珠样排列的破坏,横断可见椎骨裂孔. 二、脑积水轻者胎头环状回声增大或不增大,侧脑室增宽,宽度大于中线至
Neural tube deformity formed by a variety of fetal malformations, if found in time, contribute to clinical early diagnosis and early treatment .B ultrasound examination, the general is not difficult to diagnose, about 15 weeks of pregnancy to show fetal head and spine. The following combined with our clinical experience, talk about the characteristics of the B-tube imaging of neural tube defects.A, meningioma usually 20 weeks after pregnancy can make a diagnosis in the abdomen to do vertical and horizontal scanning, to determine the fetal Head position and fetal position, along the fetal spine longitudinal scanning, fetal occipital, neck, sacral showed liquid dark area, that bulging hernia sac, bulging and fetal head or spine junction, Visible skull or vertebral body defect .If the merger spina bifida, showing the normal spinal cord was arranged bead damage, cross-section visible vertebral fissure .Second, hydrocephalus light fetal ring echo increased or not increased, increased lateral ventricle Wide, width greater than the midline to