CT结肠成像在老年人结直肠癌诊断中的价值

CT colonography in diagnosis of colorectal cancer in the aged

目的 评估CT结肠成像 (CTcolonography ,CTC)在老年人结直肠癌诊断中的价值。 方法 对纤维结肠镜和钡灌肠诊断为结直肠癌的患者行CTC检查 ,评价CTC对老年人结直肠癌的检出情况及患者对它的耐受性。 结果 CTC成功检出 30例患者的结直肠癌 ,准确性 10 0 % ,并且有助于对肿瘤的浸润情况和肠道外转移进行全面评估。患者对CTC的耐受性明显高于纤维结肠镜和钡灌肠检查。 30例行CTC和纤维结肠镜检查的患者耐受性分别为 83 3%和 6 3 3%。在 16例行全部 3种检查的患者中 ,耐受性分别为 87 5 % ,6 8 8% ,5 6 3%。 结论 CTC技术在老年人结直肠癌的诊断中是一种安全有效的方法 ,并且可以全面的评价全结肠和腹腔内情况。CTC可以与纤维结肠镜互补来诊断结直肠癌 ,并可作为高龄、高危人群的普查方法。

Objective To evaluate the value of CTC in diagnosis of colorectal cancer in the aged. Methods Patients with colorectal cancer diagnosed by colonofibroscopy and barium enema had CTC examination. Then the results were compared with operation and pathology to evaluate the value of CTC in diagnosis of colorectal cancer in the aged and patients' tolerance to CTC. Results CTC diagnosed colorectal cancer in all 30 patients. The accuracy was 100%. CTC was helpful in evaluating infiltration and metastasis of carcinoma.The patients' tolerance to CTC was better than that to colonofibroscopy and barium enema. In 30 patients who had CTC and colonofibroscopy ,the tolerance was 83.3% and 63.3% respectively. In 16 patients who had all 3 examinations, the tolerance was 87.5%, 68.8% and 56.3% respectively. Conclusions CTC is a safe and accurate means for diagnosis of colorectal cancer. CTC can evaluate total colon and abdominal cavity overall. CTC can be a complementation of colonofibroscopy and can screen colorectal cancer in aged and high risk group.