title: Iohexol versus metrizamide for lumbar myelography: double-blind trial.
abstract: Lumbar myelography was performed in 50 patients; 25 received iohexol (an investigational aqueous contrast agent) and 25 received metrizamide. The two media produced radiographs of equal quality. However, iohexol is stable in solution, while metrizamide is not. Further, markedly less morbidity resulted from iohexol. These features indicate that iohexol may be superior to metrizamide as a contrast agent for lumbar myelography.
mesh_terms: D000328:Adult; D002986:Clinical Trials as Topic; D003287:Contrast Media; D004311:Double-Blind Method; D005260:Female; D006261:Headache / Q000139:chemically induced; D006801:Humans; D007463:Iodobenzoates; D007472:Iohexol; D008159:Lumbar Vertebrae / Q000000981:diagnostic imaging*; D008297:Male; D008793:Metrizamide / Q000009:adverse effects; D009192:Myelography / Q000379:methods*; D009325:Nausea / Q000139:chemically induced; D014283:Triiodobenzoic Acids / Q000009:adverse effects
chemical_list: D003287:Contrast Media; D007463:Iodobenzoates; D014283:Triiodobenzoic Acids; D007472:Iohexol; D008793:Metrizamide