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目的探讨MRI动态增强扫描对判断Ⅰ期子宫内膜癌肌层浸润深度的价值。方法回顾分析23例经手术病理证实为Ⅰ期子宫内膜癌的T_1WI、T_2WI平扫及动态增强MRI表现,根据FIGO分期原则进行MR分期,并与病理结果对照。结果 23例Ⅰ期子宫内膜癌T_2WI结合带模糊或不清17例,结合带中断5例,1例结合带未显示。动态增强内膜下强化带完整1例,强化带中断17例,强化带未显示、肌层内表面不规则5例。与病理结果对照,动态增强判断肌层浸润深度的诊断符合率为87%。结论动态增强MRI对Ⅰ期子宫内膜癌的诊断和分期具有较高的价值,应为术前常规检查。
Objective To investigate the value of MRI dynamic contrast-enhanced scanning in determining the depth of myometrial invasion in stage I endometrial cancer. Methods The T_1WI and T_2WI images of 23 cases with stage Ⅰ endometrial carcinoma confirmed by surgery and pathology were retrospectively analyzed. MR staging was performed according to the FIGO staging principle and compared with the pathological results. Results Twenty - three cases of stage Ⅰ endometrial cancer T_2WI were obscure or unclear, 5 cases were interrupted by band, and 1 case was not shown by banding. One case of dynamic enhancement of intima-strengthening zone, 17 cases of enhancement zone interruption, none of enhancement zone, 5 cases of irregular inner surface of myometrium. Compared with the pathological results, the diagnostic accuracy of dynamic enhancement to determine the depth of myometrial invasion was 87%. Conclusions Dynamic contrast-enhanced MRI is of high value in the diagnosis and staging of stage I endometrial cancer. It should be routinely performed before surgery.