Ultrasound characteristics of gouty tophi in the olecranon bursa and evaluation of their reproducibility

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dc.contributor.authorFernandes, Eloy de Avila [UNIFESP]
dc.contributor.authorLopes, Matheus G. [UNIFESP]
dc.contributor.authorMitraud, Sônia de Aguiar Vilela [UNIFESP]
dc.contributor.authorFerrari, Antonio Jose Lopes [UNIFESP]
dc.contributor.authorFernandes, Artur da Rocha Correa [UNIFESP]
dc.contributor.institutionUniversidade Federal de São Paulo (UNIFESP)
dc.date.accessioned2016-01-24T14:17:52Z
dc.date.available2016-01-24T14:17:52Z
dc.date.issued2012-02-01
dc.description.abstractObjectives: To describe the ultrasound characteristics of gouty tophi in the olecranon bursa and to evaluate their reproducibility.Methods: A prospective study of the ultrasound features of 35 sites of tophi nodulations in the elbows of 31 men (mean 54.6 years). the findings were evaluated dynamically following pre-established standards. the static images were evaluated by another radiologist and were reviewed by the first examiner.Results: the most frequent characteristics of tophi are: hyperechogenicity (91.7%), poorly defined contours (88.6%), multiple grouped nodules (85.6%) and heterogeneity (68.6%). Intra-observer agreement is almost perfect for echogenicity (K = 1.0), moderate for the involvement of the olecranon bursa (K = 0.47) and fair for other characteristics. Inter-observer agreement is substantial for the echogenicity (K = 0.65), fair for the echotexture (K = 0.27) and the presence of a perilesional hypoechoic halo (K = 0.34) and slight for other characteristics.Conclusions: the most frequent characteristic of tophi is hyperechogenicity. the intra-observer and inter-observer concordance for echogenicity are almost perfect and substantial, respectively. Knowledge of characteristics of the tophi in the elbow and their intra and inter-observer reproducibility may assist in establishing parameters for monitoring treatment and setting up criteria for differential diagnosis of processes involving the olecraneon bursa. (C) 2010 Elsevier Ireland Ltd. All rights reserved.en
dc.description.affiliationFed Univ São Paulo UNIFESP, Dept Diagnost Imaging, BR-04024002 São Paulo, Brazil
dc.description.affiliationFed Univ São Paulo UNIFESP, Rheumatol Discipline, Dept Med, BR-04024002 São Paulo, Brazil
dc.description.affiliationUnifespFed Univ São Paulo UNIFESP, Dept Diagnost Imaging, BR-04024002 São Paulo, Brazil
dc.description.affiliationUnifespFed Univ São Paulo UNIFESP, Rheumatol Discipline, Dept Med, BR-04024002 São Paulo, Brazil
dc.description.sourceWeb of Science
dc.format.extent317-323
dc.identifierhttp://dx.doi.org/10.1016/j.ejrad.2010.12.051
dc.identifier.citationEuropean Journal of Radiology. Clare: Elsevier B.V., v. 81, n. 2, p. 317-323, 2012.
dc.identifier.doi10.1016/j.ejrad.2010.12.051
dc.identifier.issn0720-048X
dc.identifier.urihttp://repositorio.unifesp.br/handle/11600/34585
dc.identifier.wosWOS:000299110900035
dc.language.isoeng
dc.publisherElsevier B.V.
dc.relation.ispartofEuropean Journal of Radiology
dc.rightsinfo:eu-repo/semantics/restrictedAccess
dc.rights.licensehttp://www.elsevier.com/about/open-access/open-access-policies/article-posting-policy
dc.subjectGouten
dc.subjectArthritisen
dc.subjectBursitisen
dc.subjectUltrasounden
dc.subjectDiagnosisen
dc.subjectElbowen
dc.titleUltrasound characteristics of gouty tophi in the olecranon bursa and evaluation of their reproducibilityen
dc.typeinfo:eu-repo/semantics/article
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