论文部分内容阅读
目的探讨胎盘植入的产前超声图像特征,分析漏诊的原因。方法对18例诊断及漏诊的胎盘植入病例妊娠期图像进行分析总结,探讨胎盘植入的产前声像图特征。结果 18例胎盘植入病例产前诊出4例,漏诊14例,诊断正确率约为22%。超声表现为子宫增大,胎盘增厚,与胎盘相连的子宫肌层内见片状稍高回声区,片状回声及胎盘与子宫肌层之间有异常丰富的血流信号。67%的病例胎盘内见腔隙性无回声,56%的病例胎盘后间隙消失。结论胎盘植入产前诊断率较低,对于超声图像的的深入分析有利于提高胎盘植入产前诊断率。
Objective To investigate the characteristics of prenatal ultrasound images of placenta accreta and to analyze the causes of missed diagnosis. Methods 18 cases of diagnosis and misdiagnosis of placenta accreta cases were analyzed during pregnancy to explore the characteristics of placenta accreta prenatal sonography. Results Among the 18 placenta accreta cases, 4 cases were diagnosed prenatally and 14 cases were misdiagnosed. The diagnostic accuracy was about 22%. Ultrasound showed uterine enlargement, thickening of the placenta, the placenta attached to the myometrium see flake slightly hyperechoic area echo and placenta and myometrium between the abnormal abundant blood flow signal. In 67% of the cases, there was lacunar echo in the placenta, and disappearance of the placental space in 56% of cases. Conclusion The prenatal diagnosis rate of placenta accreta is low. The in-depth analysis of ultrasound images is helpful to improve the prenatal diagnosis of placenta accreta.