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目的探讨术前螺旋CT在大肠癌诊断和分期中的价值。方法对87例经手术病理证实的大肠癌,分析术前螺旋CT表现,与手术及病理分期对照,了解大肠癌的螺旋CT分期的敏感性、准确性。结果螺旋CT能显示肠腔及肠壁的改变、病灶与周围组织关系,并可显示周围组织器官的侵犯及有无远处转移。本组螺旋CT显示大肠癌的敏感性达100%(87/87),对大肠癌TNM分期的准确率为T分期92%(80/87),N分期93.1%(81/87),M分期100%。结论大肠癌术前螺旋CT检查对大肠癌诊断和分期具有重要意义,是目前临床评估大肠癌术前分期的最佳影像方法。
Objective To investigate the value of preoperative spiral CT in the diagnosis and staging of colorectal cancer. Methods Totally 87 cases of colorectal carcinoma confirmed by surgery and pathology were analyzed. The preoperative helical CT findings were compared with the surgical and pathological stages to understand the sensitivity and accuracy of spiral CT staging of colorectal cancer. Results Spiral CT showed the changes of intestinal lumen and intestinal wall, the relationship between the lesion and the surrounding tissues, and could show the invasion of surrounding tissues and organs and the distant metastasis. This group of spiral CT showed that the sensitivity of colorectal cancer was 100% (87/87). The accuracy of TNM staging for colorectal cancer was 92% (80/87) T, 93.1% (81/87) N staging, M staging 100%. Conclusion Colorectal cancer preoperative spiral CT examination of the diagnosis and staging of colorectal cancer is of great significance, is currently the best clinical assessment of preoperative staging of colorectal cancer imaging method.