螺旋CT在直肠癌诊断及其术前分期中的价值

目的：探讨直肠癌的CT表现及其术前分期价值。方法：对33例经内镜或手术活检病理证实为直肠癌的患者进行CT回顾性阅片，分析其CT征象并进行术前分期．并将CT表现与病理结果进行对照。结果：直肠癌CT表现为肠壁增厚、肠腔狭窄、软组织肿块及周围组织结构侵犯、区域淋巴结肿大和远处转移。直肠癌术前CT分期诊断和病理分期的总符合率为92％。结论：直肠癌的CT征象具有一定的特征性，CT在直肠癌术前分期中具有较高的准确性，对治疗方案的确定具有重要参考价值。

The diagnostic value in preoperative staging of rectal carcinoma by spiral CT

Objective:To discuss the CT appearance and the value of preoperative staging of rectal carcinoma.Methods:CT images were reviewed in 33 cases of rectal carcinoma confirmed by biopsy,surgery and pathology,analyze CT appearance and preoperative staging,we also compared the preoperative CT diagnosis with clinic pathologic diagnosis.Results:CT appearances of rectal carcinoma conclude thick rectal wall,rectal cavity stenosis,soft tissue tumour,around tissue invasion,lymph noae enlargenment and metastasis.The whole identical rate between the preoperative CT diagnosis and clinic pathologic diagnosis was 92%.Conclusion:CT appearances of rectal carcinoma has its character,the preoperative CT examination is useful in the diagnosis and staging of rectal carcinoma,and in determining its clinic treatment project.