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Current Rheumatology Reports

, Volume 13, Issue 2, pp 146–153 | Cite as

Role of Ultrasound and Other Advanced Imaging in the Diagnosis and Management of Gout

  • Ralf G. ThieleEmail author
Article

Abstract

Imaging of gout with conventional radiography has been described since shortly after roentgenography was invented. Ultrasound (US) detects more erosions than conventional radiography in rheumatoid arthritis, and the same seems to be true for gout. MRI is being used to assess articular and periarticular masses, including gouty tophi. However, MRI findings in gout can lack specificity. Monosodium urate (MSU) tophi are very echogenic when US is used. Typical US features of gout include a double-contour sign or “urate icing.” The double-contour consists of the hyperechoic bony contour and a parallel hyperechoic line of MSU crystals that deposit on the hypoechoic or anechoic hyaline cartilage. Tophi can have a “wet clumps of sugar” appearance, often surrounded by an anechoic halo. Tophi are closely related to the formation of erosions. If serum urate levels are lowered consistently below 6.0 mg/dL, the disappearance of MSU crystals can be observed sonographically.

Keywords

Ultrasound Ultrasonography Sonography MRI CT DECT Imaging Gout Crystal arthritis Crystal deposition disorder Crystal-induced arthritis 

Notes

Disclosure

Dr. Thiele has served as a consultant for Novartis, has received lecturing honoraria from GE HealthCare, has received payment for development of educational presentations from UCB and Amgen, and has received equipment support and honoraria from SonoSite.

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Copyright information

© Springer Science+Business Media, LLC 2011

Authors and Affiliations

  1. 1.Department of Medicine, Allergy/Immunology and Rheumatology DivisionUniversity of Rochester School of Medicine and DentistryRochesterUSA

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