常规CT多期增强扫描评价结直肠癌T分期的研究

The Value of Conventional CT Multi-phase Enhancement Scan in T Staging of Primary Colorectal Carcinoma

目的探讨常规多层螺旋CT多期增强扫描对结直肠癌T分期的应用价值。方法收集经手术后病理证实的结直肠癌患者56例(58个病灶),术前均行常规CT多期动态增强扫描,所有病例经双盲法读片,并对病灶进行T分期(依据WHO 2010年TNM分期系统),CT的分期结果以术后病理结果来验证,以χ~2检验及Kappa检验来分析CT多期增强扫描评价结直肠癌T分期的价值。结果与术后病理对照,CT对结直肠癌的T分期的准确率为82.8%,Kappa值为0.687,(χ~2值=6.800,P=0.147,α=0.05)。结论常规CT多期增强扫描简便易行,其评价结直肠癌T分期与病理具有较好的一致性。

Objective To investigate the value of conventional multi-detector spiral CT with multi-phase enhancement scan in T staging of primary colorectal cancer(CRC).Methods 56 Patients(58 lesions)with CRC,which were confirmed by postoperative pathology,were selected as research subjects.Before surgical operation,all patients were underwent conventional CT multi-phase dynamic enhanced scan.All cases were read by double blind method,and simultaneously each lesions was staged by CT image features(according to the WHO staging TNM 2010 system).The result of CT in T staging were compared with postoperative pathological results.Results Compared with the postoperative pathology,the accuracy rate of CT in T staging of colorectal cancer was 82.8%,and the Kappa value was 0.687(χ2=6.800,P=0.147,α=0.05).Conclusion Conventional CT multi-phase enhancement scan is a simple and feasible method in the evaluation of T staging of colorectal cancer,and it has a good consistency with pathology.