口服法结肠双对比造影虽早有文献报告,但至今应用不多。盲肠、升结肠的病变在结肠双对比造影时可因气、钡充盈不满意而易漏诊。采用口眼法结肠双对比造影作为补充,可以避免漏诊。口服法结肠双对比造影检查方法简单易行。按结肠双对比造影要求作清洁准备:2天无渣饮食。检查前一天下午口服50%硫酸镁溶液40 ml 并大量饮水,临睡前口服果导片200mg。检查当天早晨用开塞露一只,排净大便。来放射科后口服300～ Oral colon double contrast imaging has long been reported in the literature, but it has not been widely used so far. The cecum and ascending colon lesions may be misdiagnosed due to unsatisfactory gas and sputum filling during double contrast angiography of the colon. Double-contrast angiography using the eye and mouth method as a supplement can avoid missed diagnosis. Oral colon double contrast imaging examination method is simple and easy. Two-contrast angiography of the colon is required to prepare for cleansing: a 2-day slag-free diet. On the afternoon of the previous day, 40 ml of 50% magnesium sulfate solution was taken orally and plenty of water was taken, and 200 mg of fruit guide tablets were taken orally before going to bed. On the morning of the examination, one was given a kerosene and the stool was discharged. After coming to the radiology department and taking 300 to