PROBLEM TO BE SOLVED: To obtain a composition for contrastradiography of an alimentary canal designed to describe a liquid residual storage part of remaining water of a wash liquid of an intestinal canal or intestinal liquid frequently appearing in the lumen of the large intestines after washing the intestinal canal in testing for colon cancer, and the like, by CT colonography and reduce the testing time or a load on a patient and having a high describing ability, and to provide a solution for oral administration.SOLUTION: The composition for the contrastradiography of the alimentary canal by CT colonography and containing an iodine compound is characterized by comprising a colloid osmotic pressure regulator and/or a crystalloid osmotic pressure regulator.COPYRIGHT: (C)2012,JPO&INPIT【課題】 CTコロノグラフィによる大腸癌などの検査において、腸管洗浄後の大腸内腔にしばしば顕れる、腸管洗浄液の残水や腸液の液状残渣貯留部を描出可能とし、検査時間や患者への負担を少なくし、且つ高い描出能を有する消化管造影用組成物及び経口投与用液剤を提供すること。【解決手段】 ヨード化合物を含有する消化管造影用組成物であって、膠質浸透圧調整剤および/または晶質浸透圧調整剤を含有することを特徴とする、CTコロノグラフィの消化管造影用組成物。【選択図】 なし
