title: Scintigraphic criteria for the diagnosis of renal arteriovenous fistulas.
abstract: Visualization of the inferior vena cava (IVC) on renal perfusion imaging occurs in cases of renal arteriovenous (AV) fistulas. A review of consecutive renal scans demonstrated IVC visualization in three of 217 patients without AV fistulas. IVC visualization occurred 3-6 seconds after peak aortic activity in normal patients. With renal AV fistulas, an intrarenal focus of increased activity is seen and IVC visualization occurs coincident with peak aortic activity.
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D001164:Arteriovenous Fistula / Q000000981:diagnostic imaging*; D002648:Child; D006801:Humans; D008875:Middle Aged; D009942:Organometallic Compounds; D004369:Pentetic Acid; D011877:Radionuclide Imaging; D012077:Renal Artery; D012082:Renal Veins; D016284:Technetium Tc 99m Pentetate; D014682:Vena Cava, Inferior / Q000000981:diagnostic imaging
chemical_list: D009942:Organometallic Compounds; D004369:Pentetic Acid; D016284:Technetium Tc 99m Pentetate