title: Case series demonstrating the clinical utility of dual energy computed tomography in patients requiring stents for urinary calculi.
abstract: Dual energy computed tomography (DECT) utilizes the material change in attenuation when imaged at two different energies to determine the composition of urinary calculi as uric acid or non-uric acid. We discuss a series of case reports illustrating DECT's ability to provide immediate determination of uric acid versus non-uric acid calculi and facilitate more informed clinical decision-making. Further, these cases demonstrate a unique population of patients with ureteral stents and percutaneous nephrostomy tubes that benefit from DECT's ability to create a virtual color contrast between an indwelling device and the stone material and thereby significantly impacting patient morbidity.
authors: Mayo Clinic Jacksonville, Jacksonville, Florida, USA.
authors: Maria A
authors: MA
authors: Jepperson
authors: David D
authors: DD
authors: Thiel
authors: Joseph G
authors: JG
authors: Cernigliaro
authors: Gregory A
authors: GA
authors: Broderick
authors: William E
authors: WE
authors: Haley
mesh_terms: D000368:Aged; D005260:Female; D006801:Humans; D007669:Kidney Calculi / Q000737:chemistry / Q000000981:diagnostic imaging* / Q000628:therapy; D008297:Male; D008875:Middle Aged; D015607:Stents; D014057:Tomography, X-Ray Computed / Q000379:methods*; D014514:Ureteral Calculi / Q000737:chemistry / Q000000981:diagnostic imaging* / Q000628:therapy; D014527:Uric Acid / Q000032:analysis
chemical_list: D014527:Uric Acid