近十年来,较为普遍地开展了对遗传病的早期产前诊断。最常用的诊断方法是经腹腔的羊膜穿刺术。检查羊水可确定染色体异常、神经管缺陷和生化异常等。为了确定先天性异常,还使用2.5兆赫兹(MHZ)超声波振荡器作为产前诊断的辅助检查。用超声波检查可记录胎儿的骨骼缺陷、小头畸形、脑积水、脑膜脑膨出和肾异常,超声扫描尚可确定肾脏的轮廓,并能了解肾脏的过滤和膀胱的排空情况。作了4例产前诊断。 In the past decade, early prenatal diagnosis of genetic diseases has been carried out more generally. The most commonly used diagnostic method is transabdominal amniocentesis. Check the amniotic fluid can determine chromosomal abnormalities, neural tube defects and biochemical abnormalities. To determine congenital anomalies, a 2.5-MHz MHZ ultrasonic oscillator was also used as a check-up for prenatal diagnosis. Ultrasound can record fetal bone defects, microcephaly, hydrocephalus, meninges, and renal abnormalities, ultrasound scan can determine the outline of the kidneys, and can understand the renal filtration and emptying of the bladder. Made 4 cases of prenatal diagnosis.