MRI检查对结肠癌T分期的诊断价值

Diagnostic value of MRI examination in T staging of colon cancer

目的目的探讨MRI检查对结肠癌T分期的诊断价值。方法方法选取52例行MRI检查的结肠癌患者,以术后病理结果为金标准,分析MRI检查对结肠癌T分期的诊断价值,采用Kappa检验评估MRI检查诊断结肠癌T分期的结果与术后病理T分期的一致性。结果结果52例结肠癌患者经MRI检查显示,T2期17例,T3期22例,T4期13例。MRI检查诊断结肠癌T2期的灵敏度、特异度、准确度、阳性预测值、阴性预测值分别为83.33%、94.12%、90.38%、88.24%、91.43%;MRI检查诊断结肠癌T3期的灵敏度、特异度、准确度、阳性预测值、阴性预测值分别为81.82%、86.67%、84.62%、81.82%、86.67%;MRI检查诊断结肠癌T4期的灵敏度、特异度、准确度、阳性预测值、阴性预测值分别为91.67%、95.00%、94.23%、84.62%、97.44%。MRI检查诊断结肠癌T2、T4期的结果与病理检查结果的一致性均较好(Kappa=0.785、0.842),MRI检查诊断结肠癌T3期的结果与病理检查结果的一致性一般(Kappa=0.685)。结论结论MRI检查对结肠癌T分期具有较高的诊断价值,且其对T4期的诊断价值最高。

Objective To explore the diagnostic value of MRI examination in T staging of colon cancer.Method Fifty-two patients with colon cancer who underwent MRI examination were selected.Using postoperative pathological re-sults as the gold standard,the diagnostic value of MRI examination in T staging of colon cancer was analyzed.The Kappa test was used to evaluate the consistency between the MRI examination result in T staging of colon cancer and postopera-tive pathological T stage.Result MRI examination of 52 patients with colon cancer showed that there were 17 cases of T2 stage,22 cases of T3 stage and 13 cases of T4 stage.The sensitivity,specificity,accuracy,positive predictive value and negative predictive value of MRI examination in the diagnosis of T2 stage colon cancer were 83.33%,94.12%,90.38%,88.24%and 91.43%,respectively.The sensitivity,specificity,accuracy,positive predictive value and negative predictive value of MRI examination in the diagnosis of T3 stage colon cancer were 81.82%,86.67%,84.62%,81.82%and 86.67%,respectively.The sensitivity,specificity,accuracy,positive predictive value and negative predictive value of MRI exami-nation in the diagnosis of T4 stage colon cancer were 91.67%,95.00%,94.23%,84.62%and 97.44%,respectively.The re-sults of MRI examination in the diagnosis of T2 and T4 stage colon cancer had good consistency with pathological exami-nation results(Kappa=0.785,0.842),and the results of MRI examination in the diagnosis of T3 stage colon cancer had general consistency with pathological examination results(Kappa=0.685).Conclusion MRI examination has a high di-agnostic value for T stage of colon cancer,and it has the highest diagnostic value for T4 stage.