【摘要】 目的 评价动态增强MRI在子宫内膜癌的诊断及分期中的价值。方法 回顾性分析38例经手术病理证实的子宫内膜癌的T₁WI、T₂WI和动态增强表现,并依据FIGO分期原则,将术前MRI分期与术后病理结果进行比较。结果 大部分肿瘤T₁WI与子宫肌信号相近,T₂WI呈等或稍高信号,动态增强早期显示子宫内膜下强化带25例,不出现内膜下强化带者,肌层内表面不规则12例,光滑1例。动态增强延迟期36例子宫内膜癌呈轻至中等强化,强化程度低于子宫肌层,2例明显强化。与手术病理比较,动态增强MRI分期判断Ⅰ期子宫内膜癌正确率为84.2%;Ⅱ期正确率为92.1%。结论 动态增强MRI在子宫内膜癌的诊断及分期中有较高的价值,应列为术前常规序列检查。更多还原

【Abstract】 Objective To study the value of dynamic contrast-enhanced MRI in the diagnosis and staging of endmoetrial carcinoma.Methods MR imaging and dynamic contrast-enhanced MRI features of endometrial carcinoma confirmed pathologhcally were retrospectively analyzed.MRI staging of endometrial carinoma according to FIGO were compared with that of postoperative pathology.Results The lesions in most endometrial carinoma were iso-intense compared with uterine muscle on T₁WI and iso-or slight hyperintense on T₂WI.At the early phase of dynamic contrast-enhanced images,subendometrial enhancement zone was seen in 25 cases,the inside surface of myometrium appeared as irregular in 12 cases and sharp in 1.At the delayed phase of dynamic contrast-enhanced sequence,endometrial carcinoma showed mild or moderate enhancement in 36 cases,and tended to enhance markedly in 2 cases.The accurate rates were respectively 84.2% and 92.1% for stage Ⅰ and Ⅱ.Conclusion Dynamic contrast-enhanced MR imaging is valuable in the diagnosis and staging of endometrial cancer,and it should be performed as a routine sequence of MRI examination before operation.更多还原