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1产前超声检查1·1对妊娠16周妇女实施超声检查的利弊的证据用于证明妊娠16周时进行超声检查的益处的大型研究有4项,上万名妊娠妇女参加了该研究,4项研究均将孕妇分为两组,观察组孕妇只在妊娠16周时接受超声检查,对照组孕妇不接受超声检查,观察两组孕妇所生婴儿的健康情况,结果
1 Prenatal Ultrasonography 1.1 Evidence of Pros and Cons of Ultrasound in Women at 16 Weeks Pregnancy There are 4 large studies that have been used to demonstrate the benefits of ultrasonography at 16 weeks of pregnancy, with tens of thousands of pregnant women participating in the study4 The study were divided into two groups of pregnant women, pregnant women in the observation group only at 16 weeks of gestation under ultrasound, pregnant women in the control group did not receive ultrasound to observe the health status of infants born in two groups of pregnant women, the results