术前MRI诊断直肠癌分期与术后病理检查结果的对比探究  

Comparison of preoperative MRI in the diagnosis of rectal cancer staging and postoperative pathological examination results

作　　者：艾琦[1] 高宏波[1] 刘薇 翁文采[1] AI Qi;GAO Hong-bo;LIU Wei(Department of Radiology,Xinhua Hospital Affiliated to Dalian University,Dalian 116021,China)

机构地区：[1]大连大学附属新华医院放射线科,116021

出　　处：《中国现代药物应用》2021年第19期42-45,共4页Chinese Journal of Modern Drug Application

摘　　要：目的对比探究术前磁共振成像(MRI)诊断直肠癌分期与术后病理检查结果的差异。方法127例疑似直肠癌患者,均给予MRI检查和手术治疗,以术后病理检查结果为标准,分析MRI检查对直肠癌T、N分期诊断符合率、灵敏度、特异度、误诊率、漏诊率。结果术后病理结果显示,127例患者有110例确诊为直肠癌,其中,T1期35例,T2期38例,T3期22例,T4期15例;MRI检查结果显示T1期34例,T2期37例,T3期21例,T4期14例。术后病理结果显示,110例确诊直肠癌患者中N0期49例,N1期38例,N2期23例;MRI检查结果显示N0期49例,N1期38例,N2期22例。MRI检查对直肠癌T分期的诊断符合率为95.28%、灵敏度为95.45%、特异度为94.12%、误诊率为5.88%、漏诊率为4.55%,诊断效能较好。MRI检查对直肠癌N分期的诊断符合率为99.21%、灵敏度为99.09%、特异度为100.00%、误诊率为0、漏诊率为0.91%,诊断效能较好。结论采用MRI诊断直肠癌,能有效鉴别其疾病分期,与手术病理结果相符率高,可为手术、治疗提供准确的数据,在直肠癌术前分期评估中有重要的指导意义。Objective To compare and explore the difference of preoperative magnetic resonance imaging(MRI)in the diagnosis of rectal cancer staging and postoperative pathological examination results.Methods 127 patients with suspected rectal cancer all received MRI examination and surgical treatment.The postoperative pathological results were used as the standard to analyze the diagnostic accordance rate,sensitivity,specificity,misdiagnosis rate,and missed diagnosis rate of MRI for T and N staging of rectal cancer.Results Postoperative pathological results showed that 110 patients were diagnosed with rectal cancer,of which 35 cases were in T1 stage,38 cases were in T2,22 cases were in T3,and 15 cases were in T4;MRI examination results showed 34 cases in T1 stage,37 cases in T2 stage,21 cases in T3 stage,and 14 cases in T4 stage.Postoperative pathological results showed that of the 110 patients with diagnosed rectal cancer,49 cases in N0 stage,38 cases in N1 stage,and 23 cases in N2 stage;MRI examination showed 49 cases in N0 stage,38 cases in N1 stage,and 22 cases in N2 stage.The diagnostic efficacy of MRI for T staging of rectal cancer was better,with a diagnostic accordance rate of 95.28%,sensitivity of 95.45%,specificity of 94.12%,misdiagnosis rate of 5.88%,and missed rate of 4.55%.The diagnostic efficacy of MRI for N staging of rectal cancer was better,with a diagnostic accordance rate of 99.21%,sensitivity of 99.09%,specificity of 100.00%,misdiagnosis rate of 0,and missed rate of 0.91%.Conclusion The use of MRI to diagnose rectal cancer can effectively identify the stage of the disease and is highly consistent with the surgical pathological results.It can provide accurate data for surgery and treatment,and has important guiding significance in the preoperative staging evaluation of rectal cancer.

关 键 词：磁共振成像 直肠癌 分期 病理检查 诊断 准确性 

分 类 号：R735.37[医药卫生—肿瘤]