CAJ | 학술논문

目的：探讨自然分娩后胎盘植入的MRI表现。方法回顾性分析10例经临床综合诊断证实的自然分娩后胎盘植入患者的MRI表现，年龄28-40岁，平均34.4岁。均行常规MRI及动态增强扫描。结果子宫不同程度增大，胎盘呈分叶状5例，结节状4例，椭圆形1例。以子宫肌层为参照， T2WI-FS胎盘呈混杂信号7例，高信号为主3例。T1WI胎盘呈含略高信号的混杂信号9例，增强前T1WI-FS(THRIVE序列)高信号更明显。动态增强后9例胎盘早期明显不均匀强化。植入部肌层厚度明显变薄7例，轻度变薄3例。结论常规MRI及动态增强能很好地显示产后胎盘植入，是重要的辅助诊断工具。
목적：탐토자연분면후태반식입적MRI표현。방법회고성분석10례경림상종합진단증실적자연분면후태반식입환자적MRI표현，년령28-40세，평균34.4세。균행상규MRI급동태증강소묘。결과자궁불동정도증대，태반정분협상5례，결절상4례，타원형1례。이자궁기층위삼조， T2WI-FS태반정혼잡신호7례，고신호위주3례。T1WI태반정함략고신호적혼잡신호9례，증강전T1WI-FS(THRIVE서렬)고신호경명현。동태증강후9례태반조기명현불균균강화。식입부기층후도명현변박7례，경도변박3례。결론상규MRI급동태증강능흔호지현시산후태반식입，시중요적보조진단공구。
Objective To investigate the MRI manifestations of placenta accreta after spontaneous labor. Methods MRI findings of 10 cases (age ranged from 28 to 40 years, mean 34.4 years) of placenta accreta after spontaneous labor were retrospectively analyzed. All cases were confirmed by clinical comprehensive diagnosis. Routine and dynamic enhanced MRI were performed. Results Uterus enlarged in varying degrees. Placenta were lobulated in 5 cases, nodular in 4 and oval in 1. Compared with the intensity of the myometrium,placenta showed heterogeneous intensity in 7 cases and hyperintensity in 3 on T2WI-fat saturation(FS). Placenta showed heterogeneous intensity(including mild hyperintensity) in 9 cases on T1WI. Hyperintensity was more clear on T1WI-FS(THRIVE) before enhancement. Dynamic enhanced scan showed early marked inhomogeneous enhancement of placenta in 9 cases. Myometrium over region of percreta were markedly thinned in 7 cases and mildly thinned in 3. Conclusion Routine and dynamic contrast enhanced MRI can clearly show the postpartum placenta accrete. It is an important auxiliary diagnostic tool.