38例前置胎盘的超声诊断体会

The Experience of Ultrasound Diagnosis on 38 Cases of Placenta Previa

目的探讨前置胎盘的超声影像诊断价值。方法选取38例前置胎盘患者超声诊断资料进行分析。结果超声诊断为前置胎盘的38例患者足月后均以剖宫产终止妊娠。完全性前置胎盘患者11例,部分性前置胎盘患者27例,均有不同程度阴道出血。结论B型超声诊断前置胎盘时须注意妊娠周数,妊娠中期胎盘占据宫腔一半的面积。对前置胎盘诊断准确率达90%-95%,经腹、阴道及直肠均可。

Objective The value of ultrasound on diagnosis for placenta previa is to be discussed. Methods Analyze the data of ultrasound diagnosis selected from 38 patients of placenta previa. Results All of 38 patients who were diagnosed by ultrasound examination as placenta previa were choose to terminate pregnancy by cesarean section when the pregnancy was termed. 11 Patients were of complete placenta previa and the other 27 patients were of partial placenta previa, all of them had vaginal bleeding in different degree. Conclusion When applying B ultrasound to diagnose placenta previa, the weeks of gestation should be noted, the placenta would occupy half space of uterine when the gestation period has passed half. The diagnostic accuracy of ultrasound examination on placenta previa reaches 90% to 95%. The diagnosis can be examined through abdomen, vagina or rectum.