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目的探讨胎盘植入的MRI表现及其诊断价值。方法回顾性分析11例胎盘植入患者,总结其MRI表现特征。结果胎盘T2WI及DWI呈高信号,T1WI呈低信号,子宫肌壁T2WI及DWI呈略低信号,T1WI呈低信号,6例表现胎盘稍向外突,子宫肌轻微变薄或不规则破坏;4例表现为高信号胎盘组织不同程度侵入低信号子宫肌壁;1例为高信号胎盘组织突破低信号子宫壁,与膀胱壁分界不清。结论 MRI对胎盘植入具有重要诊断价值。
Objective To investigate the MRI findings of placenta accreta and its diagnostic value. Methods Retrospective analysis of 11 cases of placenta accreta patients, summarize the MRI features. Results The placental T2WI and DWI showed high signal, T1WI showed low signal, slightly low signal on T2WI and DWI in the muscle wall of the uterus, low signal on T1WI, slight outward protrusion of the placenta on 6 cases, slight thinning or irregular destruction of the uterine muscle. Cases showed high signal placental invasion of varying degrees of low signal uterine muscle wall; 1 case of high signal placental tissue break through low signal uterine wall, and bladder wall demarcation is not clear. Conclusion MRI has important diagnostic value for placenta accreta.