| 李楠楠,张昕,李菊菊,徐春琪,寇秀梅,闫锐.基于胎盘MRI形态学指标诊断胎盘植入性疾病[J].中国医学影像技术,2024,40(12):1871~1875 |
| 基于胎盘MRI形态学指标诊断胎盘植入性疾病 |
| Placental MRI morphological indicators for diagnosing placenta accreta spectrum |
| 投稿时间：2024-06-06 修订日期：2024-09-27 |
| DOI：10.13929/j.issn.1003-3289.2024.12.014 |
| 中文关键词: 胎盘植入 磁共振成像 |
| 英文关键词:placenta accrete magnetic resonance imaging |
| 基金项目:陕西省重点研发计划(2024SF-YBXM-239)。 |
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| 中文摘要: |
| 目的 观察胎盘MRI形态学指标诊断胎盘植入性疾病(PAS)的价值。方法 回顾性分析214名接受产前胎盘MR检查的孕妇,根据是否存在PAS分为PAS组(n=110)与非PAS组(n=104),并于不同孕周划分相应亚组;比较组间、亚组间临床及MRI资料,分析胎盘MRI形态学指标诊断PAS的价值。结果 组间孕妇年龄、MR检查孕周、分娩孕周、孕次、产次、剖宫产次数、流产次数、清宫次数及前置胎盘占比差异均有统计学意义(P均＜0.05)。孕28~32周及32+1~36周,亚组间胎盘上下径、面积及体积差异均有统计学意义(P均＜0.05);而孕周＞36周亚组间各参数差异均无统计学意义(P均＞0.05)。以孕28~32周胎盘上下径、面积及体积诊断PAS的曲线下面积(AUC)分别为0.749、0.729及0.791,以孕32+1~36周相应参数诊断的AUC分别为0.718、0.686及0.614,上述孕周间各指标AUC差异均无统计学意义(P均＞0.05)。结论 孕28~36周胎盘MRI形态学指标有助于诊断PAS。 |
| 英文摘要: |
| Objective To observe the value of placental MRI morphological indicators for diagnosing placenta accreta spectrum (PAS). Methods Totally 214 pregnant women who underwent prenatal placental MR examination were retrospectively enrolled and divided into PAS group (n=110) and non PAS group (n=104) based on the presence of PAS or not, also into PAS subgroup and non PAS subgroup during different weeks of pregnancy. Clinical and MRI data were compared between groups and subgroups, and the value of placental MRI morphological indicators for diagnosing PAS was analyzed. Results Significant differences of pregnant women's age, gestational week at MR examination, delivery gestational week, times of pregnancies, deliveries, cesarean sections, miscarriages and uterine clearances, as well as proportion of placenta praevia were found between groups (all P＜0.05). During 28—32 weeks and 32+1—36 weeks of pregnancy, significant differences of placental diameter, area and volume were found between subgroups (all P＜0.05), while no significant differences of placental MRI morphological indicators at gestational age＞36 weeks was found between subgroups (all P＞0.05). The area under the curve (AUC) of placental diameter, area and volume for diagnosing PAS at 28—32 weeks of pregnancy was 0.749, 0.729 and 0.791, respectively, at 32+1—36 weeks was 0.718, 0.686 and 0.614, respectively,being not significantly different (all P＞0.05). Conclusion Placental MRI morphological indicators at 28—36 weeks of pregnancy were helpful for diagnosing PAS. |
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