Physical characteristics of barium contrast media and their influence on roentgen image information.
Various barium contrast media intended for radiographic examinations of the colon were analysed in a plastic model. This model contained fixed test objects which could be identified and counted on the films thus providing a measure of image information obtainable. Particular attention was paid to the marked differences in sedimentation of the various contrast media and the manner in which these affected image information.
D001466:Barium Sulfate / Q000592:standards*; D055598:Chemical Phenomena; D002627:Chemistry, Physical; D003106:Colon / Q000000981:diagnostic imaging; D003287:Contrast Media / Q000592:standards*; D006801:Humans; D008954:Models, Biological; D011859:Radiography; D013679:Technology, Radiologic
D003287:Contrast Media; D001466:Barium Sulfate