3D-cube序列与2D高分辨率序列对20例直肠癌术前T分期评估的准确性比较  

Comparison of the accuracy of 3D-cube sequence and 2D high-resolution sequence on preoperative T staging in 20 cases of rectal cancer

作　　者：成小芳 葛宇曦[2] 郑创铭 金头峰[3] CHENG Xiaofang;GE Yuxi;ZHENG Chuangming;JIN Toufeng(Department of Radiology,Affiliated Brain Hospital of Guangzhou Medical University,Guangzhou 510370,Guangdong,China;Department of Radiology,Affiliated Hospital of Jiangnan University,Wuxi 214062,Jiangsu,China;Department of Geyieral Surgery,Affiliated Hospital of Yanbian University,Yanji 133000. Jilin,China)

机构地区：[1]广州医科大学附属脑科医院放射科,广东广州510370 [2]江南大学附属医院放射科,江苏无锡214062 [3]延边大学附属医院普通外科,吉林延吉133000

出　　处：《延边大学医学学报》2018年第4期282-285,共4页Journal of Medical Science Yanbian University

基　　金：吉林省教育厅项目;广东省自然科学基金项目(2017A030307020)

摘　　要：[目的]比较3D-cube序列与2D高分辨率序列对直肠癌术前T分期评估的准确性.[方法]选择2016年1月至2017年12月间经病理检查证实为直肠癌的初诊患者20例,均给行3D-cube序列与2D高分辨率序列扫描.分别对3D-cube序列与2D高分辨率序列进行单独的T分期评估,对照病理分期计算2种方法评估结果的病理符合率.[结果]病理检查结果示,20例中T1/T2期5例,T3期13例,T4期2例;3D-cube序列评估结果与病理诊断的符合率为70%,4例T2期误诊为T3期,2例T3期误诊为T2期;2D高分辨率序列评估结果与病理诊断的符合率为95%,1例T2期误诊为T3期.[结论] 2D高分辨率序列对直肠癌术前T分期的评估准确性高于3D-cube序列,在T2,T3期中的准确性尤其高.OBJECTIVE To compare the accuracy of 3 D-cube sequence and 2 D high-resolution sequence on preoperative T staging of rectal cancer. METHODS 20 patients with rectal cancer confirmed by pathological examination between January 2016 and December 2017 were selected. All patients underwent MRI scan with 3 D-cube and 2 D high-resolution sequence. The 3 D-cube sequence and 2 D high-resolution sequence were separately evaluated by T staging, then the pathological coincidence rate of the two methods was calculated according to the pathological stages. RESULTS Among the 20 cases, pathological analysis showed 5 cases at stage T1/T2, 13 cases at stage T3, and 2 cases at stage T4. The pathologic coincidence rate of 3 D-cube sequences was 70%, 4 cases of T2 stage were misdiagnosed as T3 stage, and 2 cases of T3 stage were misdiagnosed as T2 stage. The pathologic coincidence rate of 2 D high-resolution sequences were 95%, 1 case of T2 stage was misdiagnosed as T3 stage. CONCLUSION 2 D high-resolution sequence might be superior to 3 D-cube sequence in the preoperative T staging of rectal cancer, the accuracy was particularly high in the assessment of rectal cancer in T2 and T3 stage.

关 键 词：直肠癌 磁共振成像 3D-cube 高分辨率扫描 

分 类 号：R735.37[医药卫生—肿瘤]