摘要
目的:分析胎盘植入的超声及磁共振成像(MRI)检查特点,对比超声与MRI对于胎盘植入的诊断价值。方法:选择56例疑为胎盘植入患者的病例资料,所有患者术前均采取了超声及MRI检查,回顾性分析超声及MRI检查的图像特点,总结其检出情况,对比分析其检出的可靠性及准确性。结果:超声图像特点以胎盘可见漩涡、胎盘后间隙消失、肌层局部菲薄以及胎盘病理性增厚为主;MRI图像特点以分界处呈波浪状、胎盘厚度不一、信号不均匀、交界面及浆膜层信号缺失或中断以及血管丰富为主。超声准确检出17例,敏感度为89.47%,特异度为92.60%,准确率为92.86%,诊断指数为85.18%;MRI准确检出18例,灵敏度为94.74%,特异度为96.30%,准确率为96.43%,诊断指数为92.60%,两组数据比较,差异无统计学意义(Kappa=0.86,P>0.05)。结论:超声及MRI检查作为临床诊断胎盘植入的重要手段,其诊断价值无法相互替代,建议临床将二者的优势进行结合后作出更为准确、可靠的诊断。
Objective： To analyze the ultrasonography and MRI characteristics of placenta increta and to compare and analyze the value of ultrasonography and MRI for the diagnosis of placenta increta. Methods： From November, 2012 to October 2014, 56 patients with suspected placenta increta were selected as the objects of experiment. All patients were examined by ultrasound and MRI before the surgery. The ultrasound and MRI image features were retrospectively analyzed and summarized its detection. The reliability and accuracy of detection were compared and analyzed. Results： The visible vortex in the placenta, disappearance of placenta back clearance, local thinning of muscularis and placental pathologic thickening were the main characters of ultrasound images. The boundary wavy, placental thickness heterogeneity, signal heterogeneity, the interface and serosal signal loss or interruption and vascular rich were the main characters of MRI. For ultrasonography, there were 17 cases accurate detection, the sensitivity was 89.47%, the specificity was 92.60%, the precision ratio was 92.86%, the diagnostic index was 85.18%. For MRI, there were 18 cases accurate detection, the sensitivity was 94.74%, specificity was 96.30%, the precision ratio was 96.43%, the diagnostic index was 92.60% and Kappa value was 0.86, after the data comparison of two groups,（Kappa=0.86, P0.05）, there was no significant difference. Conclusion： The ultrasound and MRI were the important means of clinical diagnosis of placenta increta, and their diagnostic value cannot be replaced by each other. To take advantages of both was suggested and a more accurate and reliable diagnosis can be made.
出处
《中国医学装备》
2015年第3期81-84,共4页
China Medical Equipment
关键词
超声检查
磁共振检查
胎盘植入
诊断
Ultrasonography
Magnetic resonance imaging
Placenta increta
Diagnosis
作者简介
李晔，女，（1979-），本科学历，主治医师。沈阳市妇婴医院超声科，从事超声诊断工作。
