Ultrasonography to assess body composition: Relevance of training.

Autor: Rodrigues CN; Federal University of Minas Gerais, Belo Horizonte, MG, Brazil., Henrique JR; Federal University of Minas Gerais, Belo Horizonte, MG, Brazil., Vilela DN; Hospital das Clínicas/Federal University of Minas Gerais (HC/UFMG), Brazil., Rocha APC; Hospital das Clínicas/Federal University of Minas Gerais (HC/UFMG), Brazil., Toledo DO; Intensive Care Unit, Hospital Israelita Albert Einstein - São Paulo (SP), Brazil., Ferreira ÁRS; Federal University of Minas Gerais, Belo Horizonte, MG, Brazil., Correia MITD; Federal University of Minas Gerais, Belo Horizonte, MG, Brazil. Electronic address: Isabel_correia@uol.com.br.
Jazyk: angličtina
Zdroj: Nutrition (Burbank, Los Angeles County, Calif.) [Nutrition] 2020 Feb; Vol. 70, pp. 110523. Date of Electronic Publication: 2019 Jun 14.
DOI: 10.1016/j.nut.2019.06.004
Abstrakt: Objective: The aim of this study was to evaluate the relevance of ultrasonography training by non-experts carrying out quadriceps muscle mass assessment.
Methods: Two non-expert evaluators were trained by two radiologists on the basic principles of ultrasonography and quadriceps muscle measurements. Afterward, they performed assessments on 30 healthy volunteers to determine interobserver agreement, considering two landmarks (two-thirds of the femoral distance, and 10 cm above the patella), which were tested by the intraclass correlation coefficient (ICC).
Results: In all, 342 measurements were acquired. Better ICC data were seen for the muscle at two-thirds (ICC = 0.74-0.86) of the landmark than at the 10-cm landmark (ICC = 0.63-0.91). However, the thickness measurements indicated inadequate agreement (ICC = 0.71). The ICC values for both the rectus femoris area and thickness progressively increased when comparing the first 10 measurements with the last 10 for the two-thirds landmark. For the 10-cm landmark, worse data were observed in the last measurements, perhaps due to the increased number of obese volunteers.
Conclusions: Measurements at the 10-cm landmark are more difficult to acquire, especially in the obese. Intensive training for non-expert examiners is mandatory.
(Copyright © 2019 Elsevier Inc. All rights reserved.)
Databáze: MEDLINE
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