Placental MRI morphological indicators for diagnosing placenta accreta spectrum
10.13929/j.issn.1003-3289.2024.12.014
- VernacularTitle:基于胎盘MRI形态学指标诊断胎盘植入性疾病
- Author:
Nannan LI
1
;
Xin ZHANG
;
Juju LI
;
Chunqi XU
;
Xiumei KOU
;
Rui YAN
Author Information
1. 西安医学院研究生工作部,陕西 西安 710021
- Publication Type:Journal Article
- Keywords:
placenta accrete;
magnetic resonance imaging
- From:
Chinese Journal of Medical Imaging Technology
2024;40(12):1871-1875
- CountryChina
- Language:Chinese
-
Abstract:
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.
