CT联合MRI检查用于直肠癌术前分期诊断的准确性分析  

Accuracy Analysis of CT Combined with MRI in Preoperative Staging Diagnosis of Rectal Cancer

作　　者：袁冬健 YUAN Dong-jian(Qidong Hospital of Traditional Chinese Medicine,Qidong,Jiangsu 226200)

机构地区：[1]江苏省启东市中医院,江苏启东226200

出　　处：《中国肛肠病杂志》2024年第9期5-7,共3页Chinese Journal of Coloproctology

摘　　要：目的:探讨CT联合MRI检查用于直肠癌术前分期诊断的准确性。方法:选择2021年1月至2022年12月,本院收治的50例直肠癌患者,依次进行CT检查、MRI检查,以病理活检结果为金标准,比较CT、MRI单独诊断及联合诊断直肠癌的准确性。结果:病理检查结果显示,50例患者中,良性肿瘤(阴性)2例,恶性(阳性)48例,均为直肠腺癌。与单独CT、MRI检查相比,CT联合MRI诊断的准确性与敏感度均更高(P<0.05),但特异性无明显差异(P>0.05)。48例直肠癌患者中,T1~2期26例、T3期15例、T4期7例,CT对直肠癌术前T分期诊断的准确性为75.00%(36/48),MRI为79.17%(38/48),CT联合MRI为97.92%(47/48),CT联合MRI的诊断准确性高于单纯CT和MRI检查(P<0.05)。N0期22例、N1期18例、N2期8例,CT对直肠癌术前N分期诊断的准确性为79.17%(38/48),MRI为83.33%(40/48),CT联合MRI为97.92%(47/48),CT联合MRI的诊断准确性高于单纯CT和MRI检查(P<0.05)。结论:CT联合MRI诊断直肠癌及在术前分期诊断中的准确性均更高,可用于指导临床治疗。Objective To investigate the accuracy of CT combined with MRI in preoperative staging diagnosis of rectal cancer.Methods Total 50 patients with rectal cancer admitted to our hospital from January 2021 to December 2022 were selected to be examined by CT and MRI in sequence to compare the accuracy of separate diagnosis of CT or MRI and combined diagnosis of rectal cancer,with the pathological biopsy results as the gold standard.Results Pathological examination showed that among the 50 patients,there were 2 benign tumors(negative)and 48 malignant tumors(positive),all of which were rectal adenocarcinoma.Compared with separate examination of CT or MRI,the accuracy and sensitivity of CT combined with MRI were higher(P<0.05),but there was no significant difference in specificity(P>0.05).Among 48 patients with rectal cancer,there were 26 cases of stage T1~2,15 cases of stage T3,and 7 cases of stage T4.The accuracy of preoperative T staging diagnosis of rectal cancer by CT,MRI and CT combined with MRI was 75.00%(36/48),79.17%(38/48),and 97.92%(47/48),respectively.The diagnostic accuracy of CT combined with MRI was higher than that of separate CT or MRI(P<0.05).There were 22 cases of stage N0,18 cases of stage N1,and 8 cases of stage N2.The accuracy of preoperative N staging diagnosis by CT,MRI and CT combined with MRI was 79.17%(38/48),83.33%(40/48),and 97.92%(47/48),respectively.The diagnostic accuracy of CT combined with MRI was higher than that of separate CT or MRI(P<0.05).Conclusion CT combined with MRI is more accurate in the diagnosis of rectal cancer and the preoperative staging diagnosis,which can be used to guide clinical treatment.

关 键 词：直肠癌 CT MRI 分期 准确性 

分 类 号：R735.37[医药卫生—肿瘤] R730.44[医药卫生—临床医学] R445.2