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Reliability of ultrasound texture measures of Biceps Brachialis and Gastrocnemius Lateralis muscles' images
Author(s) -
Silva Pereira Júnior Newton,
Matta Thiago Torres,
Alvarenga André Victor,
Albuquerque Pereira Wagner Coelho,
Oliveira Liliam Fernandes
Publication year - 2017
Publication title -
clinical physiology and functional imaging
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.608
H-Index - 67
eISSN - 1475-097X
pISSN - 1475-0961
DOI - 10.1111/cpf.12257
Subject(s) - medicine , biceps , brachialis , ultrasound , reliability (semiconductor) , texture (cosmology) , anatomy , radiology , artificial intelligence , power (physics) , physics , quantum mechanics , computer science , image (mathematics)
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.