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Skeletal Radiology
Published in: Skeletal Radiology 11/2015

01-11-2015 | Scientific Article

First experience with single-source dual-energy computed tomography in six patients with acute arthralgia: a feasibility experiment using joint aspiration as a reference

Authors: Torsten Diekhoff, Katharina Ziegeler, Eugen Feist, Tobias Kiefer, Jürgen Mews, Bernd Hamm, Kay-Geert A Hermann

Published in: Skeletal Radiology | Issue 11/2015

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Abstract

Objectives

Dual-energy computed tomography (DECT) is an emerging imaging technique for examining patients with suspected gout. Single-source dual-energy CT (S-DECT) is a new way of obtaining DECT information on conventional CT scanners rather than using special dual-source CT systems.

Methods

We tested the feasibility of S-DECT (320-row CT; Aquilion ONE, Toshiba Medical Systems, Otawara, Japan) in 6 patients (5 men, 1 woman; mean age 61.3, range 48 to 69 years) with acute arthralgia and suspected gout, and compared the S-DECT findings with the results of joint aspiration.

Results

Three patients had a diagnosis of gouty arthritis with negatively birefringent crystals in synovial fluid, in addition to gouty tophi in S-DECT. Three patients had no detectable crystals by polarization microscopy and no tophi on DECT. Their final diagnoses were rheumatoid arthritis, activated osteoarthritis, and septic arthritis in one case each.

Conclusion

This initial experience suggests that S-DECT might be a valuable alternative to dual-source CT. Hence, more patients may benefit from its additional diagnostic abilities in the future.
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Metadata
Title
First experience with single-source dual-energy computed tomography in six patients with acute arthralgia: a feasibility experiment using joint aspiration as a reference
Authors
Torsten Diekhoff
Katharina Ziegeler
Eugen Feist
Tobias Kiefer
Jürgen Mews
Bernd Hamm
Kay-Geert A Hermann
Publication date
01-11-2015
Publisher
Springer Berlin Heidelberg
Published in
Skeletal Radiology / Issue 11/2015
Print ISSN: 0364-2348
Electronic ISSN: 1432-2161
DOI
https://doi.org/10.1007/s00256-015-2204-7

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