title: [Retirement plan for a 70-year-old. Intravenous urography disembarks from uroradiology].
abstract: Over the last 70 years, intravenous urography (IVU) has played a major role in the work-up of diseases in the kidneys and the upper urinary tract. However, modern cross-sectional modalities have shown that IVU does not fulfill current requirements. Patients with renal colic are better examined by non-enhanced CT scanning, as it finds more stones (60 versus 100%). Furthermore, a disease outside the upper urinary tract is found in about 15% of patients with renal colic, and in 3% another kidney or upper urinary tract disease is found. For patients with haematuria, CT urography is a better alternative, as it combines the advantages of CT with those of IVU. IVU misses about 15% of renal tumours above 3 cm in diameter and almost all below 3 cm. MR urography is the newest way of imaging the upper urinary tract; its exact role is still undetermined, but it is recommended for children, young persons, and pregnant women. After 70 years of good performance, it is time for IVU to retire.
authors.affiliation: Radiologisk afdeling, Københavns Universitetshospital i Herlev, DK-2730 Herley.
authors.forename: Henrik S
authors.initials: HS
authors.lastname: Thomsen
authors.forename: Steen
authors.initials: S
authors.lastname: Lindequist
authors.forename: Eva
authors.initials: E
authors.lastname: Brems-Dalgaard
mesh_terms: D003287:Contrast Media / Q000008:administration & dosage; D005260:Female; D006417:Hematuria / Q000000981:diagnostic imaging; D049673:History, 20th Century; D006801:Humans; D007275:Injections, Intravenous; D007674:Kidney Diseases / Q000000981:diagnostic imaging*; D008279:Magnetic Resonance Imaging; D011247:Pregnancy; D014057:Tomography, X-Ray Computed; D014545:Urinary Calculi / Q000000981:diagnostic imaging; D014567:Urography / Q000266:history / Q000379:methods*; D014570:Urologic Diseases / Q000000981:diagnostic imaging*
chemical_list: D003287:Contrast Media
vernacular_title: Aftraedelsesordning for en 70-årig. Intravenøs urografi går fra borde i uroradiologien.