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目的 探讨X线、CT检查对直肠癌的诊断价值。方法 81例经活检确诊为直肠癌的患者行CT检查,其中33例同时行钡剂灌肠检查。观察分析病变的影像表现并与术后病理对照研究。结果 X线、CT对病变的确诊率均为100％,CT判定病变侵犯深度正确率为76.5％;CT判定转移性淋巴结敏感性为62.9％,准确性为75.5％,特异性为81％。结论 X线、CT检查均可准确判定病变的性质及长度。CT可用于判定病变的侵犯深度、淋巴转移,并可用于术前分期。
Objective To investigate the diagnostic value of X-ray and CT examinations for rectal cancer. Methods Eighty-one patients with rectal cancer diagnosed by biopsy underwent CT examination. 33 patients underwent barium enema at the same time. Observe and analyze the image performance of the lesions and compare them with postoperative pathology. Results The definitive diagnosis rate of X-ray and CT was 100%. The correct rate of CT-determined lesion invasion was 76.5%. The sensitivity of CT-identified metastatic lymph node was 62.9%, the accuracy was 75.5%, and the specificity was 81%. Conclusion X-ray and CT examination can accurately determine the nature and length of the lesion. CT can be used to determine the depth of lesion invasion, lymph node metastasis, and can be used for preoperative staging.