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Case series demonstrating the clinical utility of dual energy computed tomography in patients requiring stents for urinary calculi
Mayo Clinic Jacksonville, Jacksonville, Florida, USA
Feb 2014 (Vol. 21, Issue 1, Pages( 7166 - 7170)
PMID: 24529025

Abstract

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  • 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.

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