临床普外科电子杂志 ›› 2025, Vol. 13 ›› Issue (4): 81-.

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多模态磁共振成像在评估直肠癌术前 T、N 分期的价值分析

  

  1. 英德市人民医院 影像中心,广东 英德 513000
  • 出版日期:2025-10-01 发布日期:2026-01-30

Analysis of the value of multi-modal magnetic resonance imaging in preoperative T and N staging of rectal cancer

  1. Image Center of People's Hospital of Yingde City, Guangdong Yingde 513000, China
  • Online:2025-10-01 Published:2026-01-30

摘要:

目的 探讨多模态 MRI 在评估直肠癌术前 T、N 分期的价值。方法 选择 2023 年 1 月至 2025 年 3 月英德市人民医院收治的直肠癌患者 82 例,所有患者均行多模态 MRI,以术后完整病理学检查结果为金标准,评估多模态 MRI 对直肠癌术前 T、N 分期的诊断价值。结果 82 例直肠癌患者中,病理学检查结果显示:T1 期 16 例,T2 期 21 例,T3 期 32 例,T4 期 13 例;N0 期 18 例,N1 期 45 例,N2 期 19 例。多模态 MRI 结果显示:T1 期 15 例,T2 期 25 例,T3 期 30 例,T4 期 12 例;N0 期 22 例,N1 期 44 例,N2 期 16 例。多模态 MRI 对直肠癌术前 T、N 分期的一致性均较好,Kappa=0.848、0.777(P < 0.001)。多模态MRI 对直肠癌术前 T 分期的特异度更高(P < 0.05);多模态 MRI 对直肠癌术前 T、N 分期的敏感度、准确率比较无显著差异(P > 0.05)。结论 多模态 MRI 对直肠癌术前 T、N 分期均具有良好诊断一致性,在术前评估 T、N 分期均可靠,且其更擅长排除非肿瘤浸润,可作为直肠癌术前精准评估的可靠辅助手段。

关键词: 直肠癌, 多模态, 磁共振成像, T、N 分期, 诊断效能

Abstract:

Objective To evaluate the diagnostic value of multi-modal magnetic resonance imaging (MRI) in preoperative T and N staging of rectal cancer. Method 82 patients with rectal cancer admitted to Yingde people's Hospital from January 2023 to March 2025 were selected. All patients underwent multimodal MRI. The diagnostic value of multimodal MRI in preoperative T N staging of rectal cancer was evaluated based on the results of postoperative pathological examination as the gold standard. Result Among 82 patients with rectal cancer, pathological examination showed that there were 16 cases in T1 stage, 21 cases in T2 stage, 32 cases in T3 stage and 13 cases in T4 stage; There were 18 cases in N0 stage, 45 cases in N1 stage and 19 cases in N2 stage. The results of multimodal MRI showed that there were 15 cases in T1 stage, 25 cases in T2 stage, 30 cases in T3 stage and 12 cases in T4 stage; There were 22 cases in N0 stage, 44 cases in N1 stage and 16 cases in N2 stage. The consistency of multimodal MRI in preoperative T,N staging of rectal cancer was good, Kappa=0.848, 0.777(P < 0.001). The specifi city of multimodal MRI in preoperative T staging of rectal cancer was higher (P < 0.05); There was no significant difference in the sensitivity and accuracy of multimodal MRI in preoperative T and N staging of rectal cancer (P > 0.05). Conclusion Multi-modal MRI demonstrates high diagnostic consistency in preoperative T and N staging of rectal cancer and serves as a reliable tool for preoperative evaluation. Its high specificity makes it particularly effective in excluding non-tumoral infiltration, thereby supporting its use as a valuable imaging modality for preoperative planning.

Key words: Rectal cancer, Multi-modal, Magnetic resonance imaging, T and N staging, Diagnostic performance