Artigo Produção Nacional Revisado por pares

Reliability of ultrasound texture measures of Biceps Brachialis and Gastrocnemius Lateralis muscles' images

2015; Wiley; Volume: 37; Issue: 1 Linguagem: Inglês

10.1111/cpf.12257

ISSN

1475-097X

Autores

Newton da Silva Pereira Júnior, Thiago Torres da Matta, André Victor Alvarenga, Wagner Coelho de Albuquerque Pereira, Liliam Fernandes de Oliveira,

Tópico(s)

Engineering Technology and Methodologies

Resumo

Summary Ultrasound ( US ) is an important tool for diagnosing of many musculoskeletal tissue conditions. Image texture analysis can be used to characterize this tissue. The complexity curve ( CC ) is a technique commonly used to characterize the number of grey‐level transitions in an image. Variability and reliability of US texture measures in the muscle tissue are unavailable in the literature. The aim of this study was to determine the variability and reliability of five CC texture parameters from US images of healthy Biceps Brachialis and Gastrocnemius Lateralis ( GL ) muscles, with longitudinal and transversal orientations of the probe. Eight images per subject were obtained for 30 men in 2 days. Mean, standard deviation, coefficient of variation and intraclass correlation coefficient for the five parameters were calculated for regions of interest. Results showed that the variability was similar for both muscles and most of the parameters showed satisfactory reliability ( r > 0·7) for the Biceps Brachialis with the transverse scan and for the GL with the longitudinal scan.

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