摘要
Abstract
Objective To explore the value of transvaginal ultrasound in diagnosing pernicious placenta previa. In order to raise the diagnostic accuracy of pernicious placenta previa and placenta accreta. Methods All of the 67 cases, which had the history of cesarean section and the placenta in the palace wall, treated by transabdominal ultrasonography,and then treated by transvaginal ultrasonography . Recorded two sets of data ,one was the relations between the placenta and the lower uterine seg-mentcervical internal , another was the relations between the placenta and uterine musclewall. Tracking operation diagnosis and pathologic diagnosis. Result In 67 patients ,33 cases of postoperative diagnosis of pernicious placenta previa,8 cases complicated with placenta accreta . The areas under ROC curve of transvaginal ultrasound and transabdominal ultrasound in diagnosing perni-cious placenta previa were 0. 985 vs 0. 793;The areas under ROC curve of transvaginal ultrasound and transabdominal ultrasound in diagnosing placenta accreta were 0. 867 vs 0. 787. There was significant differnce between transvaginal ultrasound and transabdo-mial ultrasound (P < 0. 05). Conclusion Transvaginal ultrasound could increase the diagnostic accuracy of pernicious placenta previa and placenta accreta.关键词
ROC 曲线/经阴道超声/凶险型前置胎盘Key words
ROC curve/transvaginal ultrasound/pernicious placenta previa分类
医药卫生
