结肠气钡双重造影：乙状结肠及直肠上段向后受压变细。
The sigmoid colon and upper rectum were pressed backward and narrowed on colic photography.
目的分析结肠癌术前纤维结肠镜及结肠气钡双重造影在临床诊断中的应用价值。
Objective To evaluate the value of diagnose of colon carcinoma by colonoscopy and double contrast radiography.
目的：探讨气钡双重造影及螺旋CT对结肠癌诊断的临床应用价值。
Objective: to discuss the predictive value of double air contrast radiography and spiral computed tomography in the diagnosis of colon carcinoma.
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