Artifacts in Dual-Energy CT Gout Protocol: A Review of 50 Suspected Cases With an Artifact Identification Guide

AJR Am J Roentgenol. 2014 Jul;203(1):W103-9. doi: 10.2214/AJR.13.11396.

Abstract

Objective: The objective of our study was to discover the types and incidence of artifacts in dual-energy CT (DECT) using datasets of 50 consecutive patients who underwent a four-limb DECT protocol for the evaluation of suspected gout. Identification of artifacts and techniques for artifact reduction are discussed.

Conclusion: Artifacts commonly occur in DECT performed for gout assessment but are usually readily recognizable. For 90% of the patients in our study who underwent imaging for suspected gout, DECT showed some type of artifact, with nail bed and skin artifacts being the most common.

Keywords: artifact; artifact reduction; dual-energy CT; gout; urate.

MeSH terms

  • Adult
  • Aged
  • Algorithms
  • Artifacts*
  • Female
  • Gout / diagnostic imaging*
  • Humans
  • Male
  • Middle Aged
  • Radiographic Image Interpretation, Computer-Assisted
  • Tomography, X-Ray Computed / methods*