| 郭吉敏,曹满瑞,赵弘,朱志军,邹万姣,吴逸冲.MR胎盘突出征预测前置胎盘患者产后出血的价值[J].中国医学影像技术,2017,33(9):1376~1379 |
| MR胎盘突出征预测前置胎盘患者产后出血的价值 |
| Value of MR placental protusion sign in predicting postpartum hemorrhage in patients with placenta previa |
| 投稿时间：2017-02-21 修订日期：2017-06-13 |
| DOI：10.13929/j.1003-3289.201702084 |
| 中文关键词: 胎盘突出征 前置胎盘 出血 磁共振成像 |
| 英文关键词:Placental protusion sign Placental previa Hemorrhage Magnetic resonance imaging |
| 基金项目:深圳市科创委资助科技研发基金（JCYJ20160427191826197、JCYJ201404141608113）。 |
|
| 摘要点击次数: 1617 |
| 全文下载次数: 1026 |
| 中文摘要: |
| 目的 探讨MR胎盘突出征预测前置胎盘患者产后出血的价值。方法 回顾性分析具有完整临床资料的前置胎盘患者354例。患者于术前2周接受MR检查，评估MR胎盘突出征与产后出血的相关性。结果 354例前置胎盘患者中，孕妇的年龄（χ2=4.34，P=0.04）、分娩时孕周（χ2=5.19，P=0.02）及剖宫产次数（χ2＝44.85，P<0.01）均与产后出血有关。MR提示胎盘突出征8例，其中6例发生产后出血。具有胎盘突出征患者和不具有胎盘突出征患者产后出血的发生率分别为75.00%（6/8）、12.72%（44/346），差异有统计学意义（χ2=20.14，P<0.01）。MRI胎盘突出征提示产后出血的敏感度、特异度、优势比（95%可信区间）及阳性似然比分别为12.00%（6/50）、99.34%（302/304）、20.59（4.03，105.23）、15.68。结论 MRI胎盘突出征预测产后出血具有重要的临床参考价值。 |
| 英文摘要: |
| Objective To explore the MRI findings of placental protusion sign in predicting postpartum hemorrhage in patients with placenta previa. Methods Totally 354 placenta previa patients with whole clinical data underwent MR scaning 2 weeks before operation. Association of postpartum hemorrhage and placental protusion sign was analyzed. Results Among 354 patients with placental previa, the age of the pregnant women (χ2=4.34, P=0.04), gestational age at delivery (χ2=5.19, P=0.02) and the number of cesarean sections (χ2 =44.85, P<0.01) had associated with postpartum hemorrhage. Eight cases had placental protusion sign in MRI, while 6 cases occurred postpartum hemorrhage. The incidence of postpartum hemorrhage was 75.00%(6/8) and 12.72%(44/346) in patients with placenta accreta and with placental abruption, respectively (χ2=20.14, P<0.01). The sensitivity, specificity, odds ratio (95% confidence interval) and positive likelihood ratio of predicting postpartum hemorrhage was 12.00% (6/50), 99.34% (302/304), 20.59 (4.03, 105.23) and 15.68, respectively. Conclusion MRI placental protrusion sign has important clinical reference value in predicting postpartum hemorrhage. |
| 查看全文 查看/发表评论 下载PDF阅读器 |
|
|
|
