Non-contrast MRI for diagnosing cesarean scar pregnancy developed placental implantation in early pregnancy
10.13929/j.issn.1003-3289.2024.09.022
- VernacularTitle:平扫MRI诊断早孕期剖宫产瘢痕妊娠发生胎盘植入
- Author:
Wenlin CHEN
1
;
Bowen CUI
;
Siqing CAI
Author Information
1. 徐州医科大学附属徐州妇幼保健院徐州市妇幼保健院放射科,江苏 徐州 221009
- Keywords:
placenta,retained;
magnetic resonance imaging
- From:
Chinese Journal of Medical Imaging Technology
2024;40(9):1382-1385
- CountryChina
- Language:Chinese
-
Abstract:
Objective To explore the value of non-contrast MRI for diagnosing cesarean scar pregnancy(CSP)developed placental implantation(PI)in early pregnancy.Methods Totally 79 pregnant women with CSP in early pregnancy were retrospectively enrolled.According to postoperative pathology,PI was diagnosed when villi tissue or trophoblast cells were found in the scar muscle(PI group,n=23),while single CSP was diagnosed when no villi nor trophoblast cells were detected in the scar muscle(CSP group,n=56).Preoperative non-contrast pelvic MRI parameters were compared between groups,and the efficacy of MRI quantitative parameters for diagnosing CSP developed PI in early pregnancy was evaluated.Results Compared with those in CSP group,the largest area of the pregnancy sac,the length of the pregnancy sac close to the scar were both larger,the thickness of the thinnest scar was smaller,and the proportion of empty blood vessels shadow around the scar was higher in PI group(all P＜0.01).The sensitivity of the largest area of the pregnancy sac,the length of the pregnancy sac close to the scar and the thickness of the thinnest scar for diagnosing CSP developed PI was 78.26％,82.61％and 91.07％,respectively,and the specificity was 67.86％,66.07％and 69.57％,respectively,with area under the receiver operating characteristic curve of 0.76,0.79 and 0.82,respectively.The sensitivity,specificity and accuracy of empty blood vessels shadow around the scar for diagnosing CSP developed PI was 78.26％(18/23),85.71％(48/56)and 83.54％(66/79),respectively.Conclusion Non-contrast MRI had important clinical value for diagnosing CSP developed PI in early pregnancy.
