直肠高分辨MRI在直肠癌术前分期作用及优势

Role and Advantages of High-resolution MRI in Preoperative Staging of Rectal Cancer

目的探讨直肠高分辨磁共振成像(MRI)在直肠癌术前分期的作用及优势。方法选取2017年1月至2019年1月确诊的60例直肠癌住院患者,以病理组织学诊断为“金标准”,结合MRI增强扫描结果,对直肠癌患者进行TN分期,比较高分辨MRI直肠癌术前分期情况与病理诊断分期情况。结果高分辨MRI在直肠癌术前分期中T分期准确率为83.33%,Kappa值为0.712(P<0.05);N分期准确率为63.33%,Kappa值为0.391(P<0.05)。结论高分辨MRI对直肠癌术前T分期诊断较为精准,但对N分期诊断率较低。

Objective To investigate the role and advantages of high-resolution magnetic resonance imaging(MRI)in preoperative staging of rectal cancer.Methods Sixty patients with rectal cancer diagnosed from January 2017 to January 2019 were selected.With postoperative histopathological diagnosis as the golden standard,TN staging was performed in patients with rectal cancer according to the results of preoperative MRI enhanced scan images.The preoperative stage of rectal cancer diagnosed by MRI and pathology was compared.Results The accuracy of MRI for preoperative T staging of rectal cancer was 83.33%,and Kappa value was 0.612(P<0.05).The accuracy of N staging was 63.33%,and Kappa value was 0.391(P<0.05).Conclusion MRI can accurately diagnose the preoperative T stage of rectal cancer,but the diagnosis rate of N stage is relatively lower.