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孕妇,29岁,孕1产0,孕20周来我院行常规产前超声检查。超声检查:宫内可见大小不一双活胎,甲胎儿双顶径4.9cm,头围17.3cm,腹围14.3cm,股骨长3.0cm;乙胎儿双顶径3.8cm,头围14.3cm,腹围9.0cm,股骨长2.1cm。甲胎儿沉于宫底,胎动频繁,羊水过多,最大深度约9.0cm(图1),脐动脉血流频谱显示舒张末期血流缺如,脐静脉血流呈搏动性;乙胎儿贴附于前壁,胎动少,四腔心和膀胱显示不清,脐动脉血流频谱显示舒张期血流缺
Pregnant women, 29 years old, 1 pregnant 0, pregnant 20 weeks to our hospital routine prenatal ultrasound. Ultrasound examination: intrauterine size can be seen a pair of live births, a fetus biparietal diameter 4.9cm, head circumference 17.3cm, abdominal circumference 14.3cm, femur length 3.0cm; B fetus biparietal diameter 3.8cm, head circumference 14.3cm, abdominal circumference 9.0cm, femur length 2.1cm. A fetal sink at the end of the palace, frequent fetal movement, polyhydramnios, the maximum depth of about 9.0cm (Figure 1), umbilical artery blood flow spectrum showed end diastolic blood flow, umbilical blood flow was pulsatile; B fetus attached to Anterior wall, fetal movement less, four-chamber heart and bladder showed unclear, umbilical artery blood flow spectrum showed diastolic blood flow