超声与MRI产前诊断凶险性前置胎盘的临床意义探讨

To investigate the clinical significance of ultrasound and MRI in prenatal diagnosis of pernicious placenta previa

目的研究应用超声和核磁共振(MRI)在产前诊断凶险性前置胎盘患者的临床意义。方法选取我院2014年2月至2015年4月住院的112名凶险性前置胎盘患者作为研究对象,应用超声和MRI检查,依照检查结果将患者分成一致性组、非一致性组,对比两组患者分娩方法、手术方法、输血量。结果本次研究的112名凶险性前置胎盘患者中,通过超声诊断有91人,诊断正确率是81.55%,通过核磁共振(MRI)诊断有95人,诊断准确率是84.82%。超声诊断错误率为18.75%,核磁共振(MRI)诊断错误率为15.17%。超声和MRI检查结果一致性时,紧急剖宫产率为60.22%,紧急剖宫产率明显高于择期剖腹产率,而超声和MRI检查结果非一致性时,择期剖腹产率为87.50%,紧急剖腹产率明显低于择期剖腹产率。对比两组分娩方法存在差异具有统计学意义(P<0.05)。而手术方法、输血情况相比较,显示差异不具有统计学意义。结论应用超声和MRI在产前诊断凶险性前置胎盘,可以为临床医生选择妊娠措施提供依据,因此联合超声和MRI在产前对凶险性前置胎盘诊断具有明显的临床意义。

Objective To application of ultrasound and nuclear magnetic resonance （MRI） in prenatal diagnosis of placenta previa patients clinical significance. Methods In our hospital in 2014 February to 2015 April hospitalized 112 pernicious placenta previa patients were selected as the research object, using ultrasound and MRI, according to the inspection results will be patients were divided into a group, non consistency group, compared two groups of patients with delivery methods, surgical methods, blood transfusion amount. Results This study of 112 placenta previa patients, by ultrasound diagnosis, 91 people, the correct diagnosis rate is 81.55% by（MRI）in the diagnosis of 95 people, diagnostic accuracy rate is 84.82%. ultrasound in the diagnosis of error rate was 18.75%, magnetic resonance imaging （MRI） diagnostic error rate for 15.17%. Ultrasound and MRI results consistency, emergency caesarean section rate for 60.22%, emergency caesarean section rate was significantly higher than that of elective cesarean section rate, and ultrasound and MRI results in non conformance, elective caesarean section rate was 87.50%, emergency caesarean section rate was significantly lower than that of the elective caesarean section rate. Compared two groups of labor method there is a statistically significant difference （P〈0.05）. And surgical methods, blood transfusion phase comparison shows no difference with Have statistical significance. Conclusion Ultrasonography and MRI in the prenatal diagnosis of dangerous placenta previa, can for clinicians to select the pregnancy measures provide a basis, so combined with ultrasound and MRI in the prenatal of placenta previa diagnosis has obvious clinical significance.