DCE-MRI结合DWI用于胃癌患者术前TNM分期评估中的准确性研究  

Accuracy Study of DCE-MRI Combined with DWI in Preoperative TNM Staging Assessment In Gastric Cancer Patients

作　　者：陈小勇 徐敬慈[1] 刘宵[1] 苏文婷[1] 赵越[1] CHEN Xiao-yong;Xu Jing-ci;LIU Xiao;Su Wen-ting;Zhao Yue(Department of Radiology,Ruijin Hospital Affiliated to Shanghai Jiao Tong University School of Medicine,Shanghai 200025,China)

机构地区：[1]上海交通大学医学院附属瑞金医院放射科,上海200025

出　　处：《中国CT和MRI杂志》2025年第4期153-156,共4页Chinese Journal of CT and MRI

摘　　要：目的分析动态增强磁共振成像(DCE-MRI)结合弥散加权成像(DWI)在胃癌患者术前肿瘤-淋巴结-远处转移(TNM)分期评估中的准确性。方法选取医院2023年1月至2024年1月诊治的84例胃癌患者,术前均进行DCE-MRI、DWI检查,手术后进行病理检查,以病理检查分期结果作为“金标准”,探讨单独及联合检查在评估胃癌术前TNM分期时的准确性。结果84例患者中,T分期:T1、T2、T3、T4期患者分别为11、14、40、19例;N分期:N0、N1、N2期为21、38、25例;M期:M0、M1期为75、9例。胃癌患者TNM分期不同,影像学特征也存在不同。胃癌患者术前TNM分期评估中,DCEMRI、DWI联合检查的符合率均高于单独检查;但在T分期中,三种检查方式,在T1、N0、M1分期中,符合率对比差异不明显(P>0.05);在T2、T3、T4、N1、N2、M0中,三种检查方式符合率比较差异显著(P<0.05)。结论DCE-MRI结合DWI检查,在胃癌患者术前TNM分期中的准确性较高,可为患者临床治疗方案的制定提供影像学依据。Objective To analyze the accuracy of dynamic enhanced magnetic resonance imaging(DCE-MRI)combined with diffusion-weighted imaging(DWI)in the staging assessment of preoperative tumor-lymph node-distant metastasis(TNM)in patients with gastric cancer.Methods A total of 84 patients with gastric cancer diagnosed and treated in the hospital from January 2023 to January 2024 were selected,and all of them underwent DCE-MRI and DWI examinations before surgery,and pathological examinations were performed after surgery.Results Among the 84 patients,11,14,40,and 19 patients with T1,T2,T3,and T4 stages,respectively.N stage:21,38,and 25 cases in N0,N1,and N2 stages;M stage:75 and 9 cases in M0 and M1 stages.Patients with gastric cancer have different TNM stages and different imaging features.In the preoperative TNM staging evaluation of gastric cancer patients,the coincidence rate of DCEMRI and DWI combined examination was higher than that of single examination.However,there was no significant difference in the coincidence rate of the three examination methods in T1,N0 and M1 stages(P>0.05),there was a significant difference in the coincidence rate of the three inspection methods in T2,T3,T4,N1,N2 and M0(P<0.05).Conclusion DCE-MRI combined with DWI has high accuracy in preoperative TNM staging of gastric cancer patients,which can provide imaging basis for the formulation of clinical treatment plans for patients.

关 键 词：动态增强磁共振成像 弥散加权成像 胃癌 TNM分期 

分 类 号：R445.2[医药卫生—影像医学与核医学]