Platt L D, Lenke R, Sipos L
Am J Obstet Gynecol. 1981 Aug 1;140(7):758-9. doi: 10.1016/0002-9378(81)90736-5.
Linear array real-time ultrasound was utilized to observe gross fetal body movements before and after second-trimester amniocentesis. No significant differences were found between the two observation periods. All pregnancies continued to term, and no evidence of fetal trauma was found at delivery.
采用线阵实时超声观察孕中期羊膜腔穿刺术前、后的胎儿大体活动情况。两个观察期之间未发现显著差异。所有妊娠均持续至足月，分娩时未发现胎儿有损伤迹象。
