Feczko P J, Halpert R D
AJR Am J Roentgenol. 1986 Apr;146(4):697-701. doi: 10.2214/ajr.146.4.697.
During a recent regional screening program, 98 patients with a positive Hemoccult test were evaluated radiographically. Double-contrast barium enema (DCBE) detected all six carcinomas and 92% of 37 polyps. DCBE was also the most cost-effective procedure. Colonoscopy dramatically increased screening costs without providing evidence to support its use in all Hemoccult-positive patients. It is recommended that DCBE be the initial diagnostic test in Hemoccult-positive patients, to be supplemented in selected patients by flexible sigmoidoscopy or colonoscopy depending on the pathology evident on DCBE and on clinical circumstances.
在最近的一次区域筛查项目中，对98名潜血试验呈阳性的患者进行了影像学评估。双重对比钡灌肠（DCBE）检查出了所有6例癌症以及37例息肉中的92%。DCBE也是最具成本效益的检查方法。结肠镜检查大幅增加了筛查成本，却没有证据支持对所有潜血阳性患者都使用该检查。建议DCBE作为潜血阳性患者的初始诊断检查，根据DCBE显示的病理情况和临床情况，对部分患者辅以乙状结肠镜检查或结肠镜检查。
