扩散加权成像联合T_2加权成像对子宫内膜癌的诊断及分期价值

Value of DWI and T_2WI in diagnosis and staging of endometrial carcinoma

目的探讨扩散加权成像(DWI)联合T_2加权成像(T_2WI)对子宫内膜癌的诊断及分期的价值。方法回顾性分析安徽医科大学附属六安医院2013年3月至2017年6月就诊且经手术病理证实的21例子宫内膜癌患者DWI及T_2WI表现,判断其浸润深度及范围,并与术后病理结果进行对比。结果 21例患者中,Ⅰ期16例(76.19%),病变在T_2WI序列上信号呈不均匀增高,DWI序列呈稍高及高信号,低信号的子宫基质带完整;Ⅱ期4例(19.05%),DWI序列呈高信号,子宫基质带连续性中断;Ⅲ期1例(4.76%),DWI序列呈明显高信号,病变穿透浆膜层。1例Ⅰ期被误判为Ⅱ期。结论 DWI联合T_2WI可提高子宫内膜癌诊断的准确性和特异性,也利于对其进行分期。

Objective Toevaluate the value of combination of the diffusion weighted imaging(DWI)and T 2-weighted imaging(T 2WI)in diagnosis and staging of endometrial carcinoma.Methods From March 2013 to June 2017,21 patients with endometrial carcinoma confirmed by surgical pathology were collected.The features of DWI and T 2WI were reviewed.The invasive depth and extent were judged,and the stage results of MRIwere compared with pathological results.Results Of 21patients,16 patients were Stage I,lesions appeared inhomogeneous intensity signal on T 2WI,slightly hyperintense or hyperintense signal on DWI,and the low-intensity myometrial wall was not invaded;4 patients were Stage II,lesions appeared hyperintense signal on DWI,with interruption of the myometrial wall;1 patient was Stage III,lesion presented markedly hyperintense signal on DWI,with the continuity of outer myometrium disruption;1 patient of Stage I was mistaken for Stage II before surgery.Conclusion The combination of DWI and T 2WI can increase specificity and accuracy of endometrial carcinoma,which is useful in diagnosis and staging of endometrial cancer.