Figure 1b: Sequential transverse CT images of the abdomen after oral and rectal administration of 800 mL of 5% ioxithalamate meglumin (Telebrix Gastro; Guerbet, Aulnay-sous-bois, France) and intravenous administration of 100 mL of iohexol (300 mg of iodine per milliliter, Omnipaque; Nycomed, Oslo, Norway).