钡剂灌肠作为结肠X线基本检查方法已有多年历史,其间虽有各种改进和创新,但都不能避免灌肠插管和检查前严格的清洁灌肠,且曾有报道引起患者有心电图的改变者。采用不为肠道吸收的水溶性造影剂造影法,可引起电解质紊乱及血尿素氮的升高,有人主张在服完钡餐后立即吞服防止结肠内钡剂脱水药物的口服钡餐造影,但这种药物要在口服钡餐24小时后才起作用,时间长后结肠内粪块影增多。所以,上述各种方法都未能被采纳。至于采用新司 Barium enema as the basic method of colon X-ray examination has been for many years, during which although a variety of improvements and innovations, but can not avoid the enema cannula and strict cleaning enema before the inspection, and there have been reports of patients with ECG changes . The use of water-soluble contrast agents that are not absorbed into the gut can cause electrolyte disturbances and elevated blood urea nitrogen. Some have argued that oral barium meal, which prevents dehydration of colonic barium in the colon, is swallowed immediately after taking barium meal Drugs to oral barium meal 24 hours after the onset of work, a long time after the colon increased fecal shadow. Therefore, none of the above methods have been adopted. As for the new division