磁共振成像检查对直肠癌淋巴结转移的诊断价值

Diagnostic value of magnetic resonance imaging in lymph node metastasis of rectal cancer

目的探讨磁共振成像(MRI)检查诊断直肠癌淋巴结转移的灵敏度、特异度。方法随机选取2017年12月至2020年12月本院肿瘤科接收直肠癌患者100例作为研究病例,本院对纳入患者均行MRI、CT检查,并以临床病理诊断结果为金标准,分析MRI检查病症分期诊断价值以及对直肠癌淋巴结转移诊断的灵敏度、特异度,并对比MRI、CT两种检查方式病症诊出率。结果经临床诊断结果显示,纳入100例患者中NO 30例、N140例、N230例,而经由MRI检查显示,N029例、N142例、N229例,病症分期诊断准确性为98.00%(98/100);且由临床诊断结果可知,纳入100例患者中出现淋巴结转移患者共计71例,淋巴结直径4.34~15.75 mm,平均(9.37±2.19)mm,MRI检查诊出66例,灵敏度92.96%(66/71)、特异度100.00%(29/29),Kappa值=0.72,一致性较好。与CT检查对比,MRI检查病症诊出率更高(P<0.05)。结论应用MRI检查诊断直肠癌淋巴结转移诊出率、灵敏度、特异度高,可有效反映患者病情严重程度,为临床诊治提供科学依据,值得推广。

Objective To explore the sensitivity and specificity of magnetic resonance imaging(MRI)in diagnosing lymph node metastasis of rectal cancer.Methods A total of 100 patients with rectal cancer from December 2017 to December 2020 in the oncology department of our hospital were randomly selected as research cases.All the included patients were examined by MRI and CT,and the clinical pathological diagnosis results were used as the gold standard to analyze MRI.The diagnostic value of MRI for disease staging and the sensitivity and specificity of diagnosis of rectal cancer lymph node metastasis were analyzed.And the diagnosis rate of MRI and CT was compared.Results The clinical diagnosis results showed that among 100 patients,30 were NO,40 were N1,and 30 were N2.MRI showed that 29 were NO,42 were N1,and 29 were N2.The diagnosis accuracy of disease staging was 98.00%(98/100).It can be seen from the clinical diagnosis results that a total of 71 patients with lymph node metastasis were included in the 100 patients.The diameter of the lymph node was 4.34~15.75 mm,with an average of(9.37±2.19)mm.66 cases were diagnosed by MRI,the sensitivity was 92.96%(66/71),the specificity was 100.00%(29/29),the Kappa value was 0.72,and the consistency was good.Compared with CT examination,the diagnosis rate of MRI examination was higher(P<0.05).Conclusion The application of MRI in the diagnosis of rectal cancer lymph node metastasis has a high diagnosis rate,sensitivity,and specificity,which can effectively reflect the severity of the patient's condition,provide a scientific basis for clinical diagnosis and treatment,and is worthy of promotion.