Katayama K P, Roesler M R
Obstet Gynecol. 1986 Jul;68(1):70-3.
Five hundred amniocenteses were carried out at midtrimester for prenatal diagnosis. A 22-gauge spinal needle with a stylet was used. The needle was guided by a real-time sector ultrasonograph. A transducer was placed adjacent to the puncture site and the needle tip was observed entering the amniotic cavity. By this technique, a bloody tap was avoided. There were only three (0.6%) spontaneous abortions in this group of 496 patients. Amniocentesis guided by ultrasound is a safe method for the mother and the fetus.
孕中期进行了500次羊膜腔穿刺术用于产前诊断。使用的是带有针芯的22号脊椎穿刺针。该针由实时扇形超声仪引导。将换能器放置在穿刺部位附近，并观察针尖进入羊膜腔。通过这种技术，避免了血性穿刺。在这496例患者中，仅有3例（0.6%）自然流产。超声引导下的羊膜腔穿刺术对母亲和胎儿来说是一种安全的方法。
