title: Low dose intravenous urography: results and technique modifications.
abstract: 100 consecutive patients routinely referred for intravenous urography were examined using low doses of the low osmolar contrast medium Iohexol (Omnipaque 350mgl/ml). Their dosage schedule was based on the physiological parameters of age, sex, body weight and renal function. Comparison with a control group using standard contrast doses revealed a 42% reduction in contrast could be used, and still produce diagnostic studies. Nephrographic quality was reduced in the low dose group requiring technique modification, in particular a delayed film sequence. Further reductions in contrast use are envisaged in patients over the age of 40 years.
authors.affiliation: Department of Radiology, Auckland Hospital, New Zealand.
authors.forename: R J
authors.initials: RJ
authors.lastname: Keenan
authors.forename: A
authors.initials: A
authors.lastname: List
authors.forename: C
authors.initials: C
authors.lastname: Kengsakul
mesh_terms: D003365:Costs and Cost Analysis; D005260:Female; D006801:Humans; D007472:Iohexol / Q000008:administration & dosage*; D008297:Male; D008875:Middle Aged; D009994:Osmolar Concentration; D011446:Prospective Studies; D014567:Urography / Q000379:methods*; D014570:Urologic Diseases / Q000000981:diagnostic imaging*
chemical_list: D007472:Iohexol