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©2014 Baishideng Publishing Group Inc. All rights reserved.
World J Radiol. Aug 28, 2014; 6(8): 625-628
Published online Aug 28, 2014. doi: 10.4329/wjr.v6.i8.625
Published online Aug 28, 2014. doi: 10.4329/wjr.v6.i8.625
Characterization of ureteral stents by dual-energy computed tomography: Clinical implications
El-Sayed H Ibrahim, William E Haley, Division of Nephrology and Hypertension, Mayo Clinic, Jacksonville, FL 32224, United States
Maria A Jepperson, Joseph G Cernigliaro, Department of Radiology, Mayo Clinic, Jacksonville, FL 32224, United States
Michael J Wehle, Department of Urology, Mayo Clinic, Jacksonville, FL 32224, United States
Author contributions: Ibrahim EH contributed with image reconstruction, data analysis, and manuscript writing; Haley WE contributed with study design, results interpretation, and manuscript writing; Jepperson MA contributed with data analysis; Wehle MJ contributed with results interpretation; Cernigliaro JG contributed with study design and results interpretation.
Correspondence to: El-Sayed H Ibrahim, MD, Division of Nephrology and Hypertension, Mayo Clinic, Jacksonville, FL 32224, United States. ibrahim.elsayed@mayo.edu
Telephone: +1-904-9536037 Fax: +1-904-9536581
Received: February 12, 2014
Revised: April 3, 2014
Accepted: July 12, 2014
Published online: August 28, 2014
Processing time: 197 Days and 17.8 Hours
Revised: April 3, 2014
Accepted: July 12, 2014
Published online: August 28, 2014
Processing time: 197 Days and 17.8 Hours
Core Tip
Core tip: Dual-energy computed-tomography is a recently introduced technique for imaging kidney stones. Ureteral stents are also characterized by the dual-energy (DE) algorithm and, like calculi, are assigned color. The resulting stent/stone color contrast may lead to either improved or worsened stone visualization in patients with urolithiasis and stents. This case report illustrates different DE characterization of stents based on their type, and the resulting effects on stent/stone contrast. The awareness of the DE characterization of different stent types allows for stent selection that improves stone visualization.