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目的应用Meta分析比较超声(US)和MRI对胎盘植入的诊断价值。方法通过电子文献检索系统检索在中国期刊网(CNKI)和PubMed上发表的有关US和MRI诊断胎盘植入的中英文文献,并对文献进行评价及筛选。应用Meta-Disc1.4软件对纳入的试验结果进行分析。结果 US诊断胎盘植入共纳入2 400例,加权灵敏度为79%,加权特异度为95%,加权诊断比值比(DOR)为65.15,受试者工作特性(SROC)曲线下面积(AUC)为0.9495;MRI诊断胎盘植入共纳入386例,加权灵敏度为83%,加权特异度为88%,加权DOR为22.69,SROC曲线下AUC为0.8955。结论 Meta分析表明US对胎盘植入的诊断价值与MRI相比差异无统计学意义。
Objective To compare the diagnostic value of ultrasound and MRI in the diagnosis of placenta accreta by Meta-analysis. Methods The Chinese and English literature on US and MRI diagnosis of placenta accreta published in CNKI and PubMed were searched through electronic document retrieval system and the literature was evaluated and screened. Meta-Disc 1.4 software was used to analyze the included test results. Results Forty-four placenta accreta samples were obtained with weighted sensitivity of 79%, weighted specificity of 95% and weighted diagnostic odds ratio (DOR) of 65.15. The area under the receiver operating characteristic (SROC) curve was 0.9495. MRI diagnosis of placenta accreta included a total of 386 cases, with a weighted sensitivity of 83%, a weighted specificity of 88%, a weighted DOR of 22.69 and a SUC curve of 0.8955. Conclusions Meta-analysis shows that the diagnostic value of US on placenta accreta has no statistical significance compared with MRI.