磁共振弥散加权成像和动态增强成像在子宫内膜癌分期中的价值比较

摘要

Aim:To compare the value of diffusion weighted imaging (DWI) and dynamic contrast enhanced (DCE) imaging in the staging of endometrial cancer .Methods:A total of 58 patients with endometrial cancer were collected .The preoperative magnetic resonance imaging including T 1 and T2 weighted imaging , DWI ( b=0 and 700 s/mm2 ) and DCE im-aging were analyzed .The difference between DWI , DCE imaging diagnosis of overall staging and myometrial invasion was observed.Results:For the assessment of myometrial invasion , DCE imaging overall accuracy was 77.6%(45/58), DWI overall accuracy was 91.4%(53/58) (χ2paired =6.356,P=0.015).Compared with pathological results , Kappa value for DWI was 0.807(P<0.001) and that for DCE imaging was 0.587(P<0.001).Conclusion:In myometrial invasion and staging, DWI has higher accuracy than DCE imaging .%目的：比较磁共振弥散加权成像（DWI）和动态增强（DCE）成像在子宫内膜癌分期中的价值。方法：分析58例子宫内膜癌患者术前磁共振成像，包括T1和T2加权成像、DWI（b＝0和700 s/mm2）和DCE成像，比较平扫结合磁共振DWI、平扫结合磁共振DCE成像判断肌层浸润、总体分期的差异。结果：对于肌层浸润的评估，磁共振DCE成像整体准确率为77．6％（45/58），磁共振DWI整体准确率为91．4％（53/58）。磁共振DWI分期判断准确率高于DCE成像（χ2配对＝6．356，P＝0．015）。和病理结果相比，磁共振DWI Kappa为0．807（P＜0．001），磁共振DCE成像为0．587（P＜0．001）。结论：磁共振DWI与DCE成像相比，在子宫内膜癌肌层浸润和分期方面有更高的诊断准确率。