ＣＴ检查是直肠癌术前的重要辅助诊断方法之一。我们采用检查前３０分钟口服１．５％～２．０％泛影葡胺及临检前用１％泛影葡胺２００～４００毫升灌肠法，在实践中取得了满意效果，现报告如下：１典型病例［例１］女，５８岁，脓血便半年余，近日腹部隆起、腹痛。Ｘ线检... CT examination is one of the important methods of preoperative diagnosis of rectal cancer. We used oral administration of 1.5% to 2.0% diatrizoate for 30 minutes before the examination and 200 to 400 ml of enema with 1% diatrizoate before the examination, and achieved satisfactory results in practice. The report is as follows: 1 typical cases [case 1] female, 58 years old, pus and blood will be more than six months, recently abdominal uplift, abdominal pain. X-ray inspection...