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1.
Rheumatol Int ; 39(4): 707-713, 2019 04.
Article in English | MEDLINE | ID: mdl-30539275

ABSTRACT

The aim of this study was to evaluate the reliability of the outcome measures in rheumatology (OMERACT) definitions for ultrasound (US) elementary lesions in gout through an image reading exercise. Images from patients with gout (static images and videos) were collected. As an initial step, we carried out a image reading exercise within the experts of the Pan-American League of Associations for Rheumatology (PANLAR) US Study Group (n = 16). The following step consisted in a web-based exercise with the participation of larger number of sonographers (n = 63) from different centers. Images were rated evaluating the presence/absence of any US elementary lesion. Inter- and intra-reader reliabilities were analyzed using kappa coefficients. Participants were stratified according to their level of experience. In the first exercise, inter-reader kappa values were 0.45 for aggregates, 0.57 for tophus, 0.69 for erosions, and 0.90 for double contour (DC). Intra-reader kappa values were 0.86, 0.76, 0.80, and 0.90, respectively. The web-based exercise showed inter-reader kappa values for aggregates, tophus, erosions, and DC of 0.42, 0.49, 0.69, and 0.79, respectively. The intra-reader kappa values were 0.62, 0.69, 0.77, and 0.85, respectively. Reliability was not influenced by the sonographer's level of experience. The reliability of the new OMERACT US definitions for elementary lesions in gout ranged from moderate to excellent, depending on the type of lesion.


Subject(s)
Gout/diagnostic imaging , Cross-Sectional Studies , Humans , Reproducibility of Results , Ultrasonography
2.
Rev. argent. radiol ; 63(2): 89-100, abr.-jun. 1999. ilus
Article in Spanish | LILACS | ID: lil-241853

ABSTRACT

La Artrorresonancia Magnética Nuclera (ARM) del hombro es una modalidad diagnóstica que combina las ventajas de la Artrografía convencional y la Resonancia Magnética Nuclear (MN). La inyección intraarticular de Gadolinio distiende y contrasta la articulación, destacándose estructuras intraarticulares que normalmente no se ven adecuadamente en un estudio de RM convencional, entre ellas el lábrum, la cápsula y los ligamentos glenohumerales, el complejo lábrum-biceps y la superficie articular de los tendones del manguito rotador. Las principales indicaciones de la ARM son los estados de inestabilidad glenohumeral, ciertos casos de afectación del manguito rotador y del tendón bicipital y el dolor de hombro de causa no probada con RM previa. El objetivo de este trabajo es el de evaluar la ARM aplicada al estudio de la anatomía y la patología de la articulación del hombro


Subject(s)
Humans , Male , Female , Adolescent , Adult , Middle Aged , Arthrography , Shoulder Joint/anatomy & histology , Magnetic Resonance Spectroscopy , Arthrography , Shoulder Joint/pathology , Gadolinium DTPA , Gadolinium DTPA/administration & dosage , Gadolinium , Gadolinium/administration & dosage , Magnetic Resonance Imaging/standards , Joint Instability/diagnosis , Magnetic Resonance Spectroscopy/instrumentation , Shoulder Pain , Shoulder Pain/etiology
3.
Rev. argent. radiol ; 63(2): 89-100, abr.-jun. 1999. ilus
Article in Spanish | BINACIS | ID: bin-15189

ABSTRACT

La Artrorresonancia Magnética Nuclera (ARM) del hombro es una modalidad diagnóstica que combina las ventajas de la Artrografía convencional y la Resonancia Magnética Nuclear (MN). La inyección intraarticular de Gadolinio distiende y contrasta la articulación, destacándose estructuras intraarticulares que normalmente no se ven adecuadamente en un estudio de RM convencional, entre ellas el lábrum, la cápsula y los ligamentos glenohumerales, el complejo lábrum-biceps y la superficie articular de los tendones del manguito rotador. Las principales indicaciones de la ARM son los estados de inestabilidad glenohumeral, ciertos casos de afectación del manguito rotador y del tendón bicipital y el dolor de hombro de causa no probada con RM previa. El objetivo de este trabajo es el de evaluar la ARM aplicada al estudio de la anatomía y la patología de la articulación del hombro (AU)


Subject(s)
Humans , Male , Female , Adolescent , Adult , Middle Aged , Aged , Shoulder Joint/anatomy & histology , Arthrography/methods , Magnetic Resonance Spectroscopy/diagnosis , Arthrography/methods , Shoulder Pain/etiology , Shoulder Pain/diagnostic imaging , Magnetic Resonance Spectroscopy/instrumentation , Magnetic Resonance Imaging/standards , Shoulder Joint/pathology , Joint Instability/diagnosis , Gadolinium/diagnosis , Gadolinium/administration & dosage , Gadolinium DTPA/administration & dosage , Gadolinium DTPA/diagnosis
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