title: Pitfalls and limitations of diuretic renography.
abstract: We report five pediatric cases that illustrate the methodologic pitfalls and limitations of diuretic renography in suspected ureteropelvic junction obstruction. False-positive studies may be related to such avoidable flaws in methodology as premature diuretic administration, inadequate diuretic dose, and bladder distension, or to recent pyeloplasty. False-negative results may occur despite optimum technique, necessitating a follow-up study for confirmation.
authors.affiliation: Department of Radiology, SUNY Health Science Center at Brooklyn 11203.
authors.forename: C S
authors.initials: CS
authors.lastname: McCarthy
authors.forename: S D
authors.initials: SD
authors.lastname: Sarkar
authors.forename: G
authors.initials: G
authors.lastname: Izquierdo
authors.forename: E K
authors.initials: EK
authors.lastname: Dunn
authors.forename: A N
authors.initials: AN
authors.lastname: Strashun
authors.forename: M
authors.initials: M
authors.lastname: Herskowitz
authors.forename: K I
authors.initials: KI
authors.lastname: Glassberg
mesh_terms: D002675:Child, Preschool; D004232:Diuretics / Q000008:administration & dosage; D005188:False Negative Reactions; D005189:False Positive Reactions; D005260:Female; D006801:Humans; D007223:Infant; D008297:Male; D011237:Predictive Value of Tests; D011866:Radioisotope Renography; D014517:Ureteral Obstruction / Q000000981:diagnostic imaging
chemical_list: D004232:Diuretics