胎盘早剥的超声检查特点有哪些 张彦玲 山西省人民医院 скачать в хорошем качестве

胎盘早剥的超声检查特点有哪些 张彦玲 山西省人民医院

胎盘早剥的超声检查特点有哪些 张彦玲 山西省人民医院 胎盘早剥是指妊娠20周以后或者分娩期，正常位置的胎盘在胎儿娩出前完全或者部分完全从子宫壁剥离，胎盘早剥是妊娠晚期的严重并发症之一。超声检查是胎盘的主要的检查方法，它安全、方便且易行，通过它还能发现胎盘的各种异常，发生胎盘早剥典型的超声表现为胎盘明显的增厚，胎盘实质回声不均，胎盘的血肿为增厚的胎盘实质内，或后方可见混合的回声包块，胎盘与子宫壁间有较小的一些圆形的、低的，无回声的，甚至在胎盘与子宫壁之间，可以见一些窄带状的，眉笔样的低回声区和宫壁之间的分界不清楚，有时胎盘后面没有看见明显的血肿，但是胎盘增厚了，这种情况也高度怀疑胎盘早剥。当然后壁胎盘，孕产妇的表现不是很典型的，Ｂ超有时候也不是鉴别很明显，这时候就要监测胎心的情况，看看是否存在高危因素，再看一看临床表现，才能做出诊断 What are the characteristics of ultrasonography in placental abruption Placental abruption refers to the period after 20 weeks of pregnancy or delivery, The placenta in its normal position is completely or partially detached from the uterine wall before delivery, Placental abruption is one of the serious complications in late pregnancy. Ultrasound is the main examination method of placenta, It is safe, convenient and easy to operate, Through it, we can find all kinds of placental abnormalities, The typical ultrasonic manifestations of placental abruption are obvious thickening of placenta, The echo of placental parenchyma is uneven, The hematoma of placenta is in thickened placenta parenchyma, Or a mixed echo packet can be seen at the back, Between the placenta and the uterine wall, there are some smaller round and low ones, No echo, Even between the placenta and the wall of the uterus, You can see some narrow bands, The boundary between the hypoechoic area and the wall of the uterus is not clear, Sometimes there is no obvious hematoma behind the placenta, But the placenta is thickened, This is also highly suspected of placental abruption. Of course, the posterior placenta, Maternal performance is not typical, B ultrasound sometimes does not distinguish clearly, We need to monitor the fetal heart rate, See if there are high-risk factors, Take a look at the clinical manifestations, To make a diagnosis