MRI相较256层CT在直肠癌术前诊断分析中准确性更高  

MRI has higher accuracy in the preoperative diagnostic analysis of rectal cancer compared with 256-slice CT

作　　者：李聪聪 陈岩 潘成武 马宜传 LI Congcong;CHEN Yan;PAN Chengwu;MA Yichuan(Department of Radiology,The First Affiliated Hospital of Bengbu Medical University,Bengbu 233000,China;Department of Tumor Surgery,The First Affiliated Hospital of Bengbu Medical University,Bengbu 233000,China)

机构地区：[1]蚌埠医科大学第一附属医院放射科,安徽蚌埠233000 [2]蚌埠医科大学第一附属医院肿瘤外科,安徽蚌埠233000

出　　处：《分子影像学杂志》2024年第9期936-940,共5页Journal of Molecular Imaging

基　　金：蚌埠医学院自然科学重点项目(BYKY2019025ZD)。

摘　　要：目的探究256层CT与MRI对于直肠癌术前分期诊断的应用价值。方法收集2019年8月~2023年5月于蚌埠医科大学第一附属医院经手术证实的86例直肠癌患者的临床病例资料,以术后病理结果为金标准,所有患者术前均接受多层螺旋CT扫描及MRI功能成像,综合评估MRI及256层CT对于直肠癌术前T分期及淋巴结转移的诊断准确性。结果术后T分期结果:T1~2、T3及T4期分别为37例、39例及10例。MRI准确诊断T1~2、T3及T4期分别为33例、35例、9例,CT准确诊断T1~2、T3及T4期分别为27例、29例、8例。病理结果显示转移淋巴结阳性62例,MRI淋巴结转移阳性50例,CT淋巴结转移阳性36例。基于病理金标准,MRI诊断直肠癌T1~2、T3及T4期及淋巴结转移检出的敏感度、特异度及准确度高于CT,MRI各期诊断结果与病理结果Kappa一致性好,Kappa值高于CT。结论MRI相较256层CT在直肠癌术前诊断分析中准确性更高,能够为患者提供更加精准的影像参考资料。Objective To investigate the application value of 256-slice CT and MRI in the preoperative staging diagnosis of rectal cancer.Methods A total of 86 patients with rectal cancer confirmed in the First Affiliated Hospital of Bengbu Medical University from August 2019 to May 2023 were collected in the study,the postoperative pathological findings served as the gold standard,and all patients underwent a multi-layer spiral CT scan and functional MRI imaging before surgery.It was done to comprehensively evaluate the diagnostic accuracy of MRI and 256-slice CT for preoperative T staging and lymph node metastasis of rectal cancer.Results The postoperative results of T staging are as follows:37,39,10 cases were identified as stage T1-2,T3 and T4,respectively.The MRI accurately diagnosed 33,35,9 cases of stage T1-2,T3 and T4,respectively,while CT accurately diagnosed 27,29,8 cases of stage T1-2,T3 and T4,respectively.The pathological results demonstrated that 62 cases exhibited evidence of lymph node metastasis,50 cases exhibited positive findings on MRI and 36 cases exhibited positive findings on CT.In accordance with the pathological gold standard,the diagnostic sensitivity,specificity and accuracy of MRI in detecting stage T1-2,T3,T4 and lymph node metastasis of rectal cancer were superior to those of CT.Furthermore,the diagnostic outcomes of MRI in each stage were consistent with the pathological results,and the Kappa value was higher than that of CT.Conclusion Compared with 256-slice CT,MRI is more accurate in the preoperative diagnostic analysis of rectal cancer,providing more precise imaging reference materials for patients.

关 键 词：磁共振成像 计算机断层扫描 应用价值 直肠癌 分期 

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