The use of a semisolid contrast medium in a defecography.
D001004:Anus Diseases / Q000000981:diagnostic imaging; D001005:Anus Neoplasms / Q000000981:diagnostic imaging; D001006:Anus, Imperforate / Q000000981:diagnostic imaging; D001464:Barium; D002648:Child; D002675:Child, Preschool; D003108:Colonic Diseases / Q000000981:diagnostic imaging*; D003973:Diatrizoate; D006801:Humans; D008531:Megacolon / Q000000981:diagnostic imaging; D008722:Methods; D011859:Radiography
D003973:Diatrizoate; D001464:Barium