期刊
ULTRASOUND IN MEDICINE AND BIOLOGY
卷 46, 期 4, 页码 944-951出版社
ELSEVIER SCIENCE INC
DOI: 10.1016/j.ultrasmedbio.2019.11.018
关键词
Amplitude modulation; Body composition; Body fat; Fat thickness; Subcutaneous adipose tissue; Validity
With lower-cost devices and technologic advancements, ultrasound has been undergoing a resurgence as a method to measure subcutaneous adipose tissue. We aimed to determine whether a low-cost, 2.5-MHz amplitude (A-mode) ultrasound, designed specifically for body composition assessment, could produce subcutaneous fat thickness measurements comparable to an expensive, 12-MHz brightness (B-mode) device. Fat thickness was measured on 40 participants (20 female, 20 male; 29.7 +/- 11.1 y of age; body mass index 24.9 +/- 4.5 kg/m(2)) at 7 sites (chest, subscapula, mid-axilla, triceps, abdomen, suprailiac and thigh) with both devices. Intraclass correlations exceeded 0.75 at all measurement sites. Mean differences in fat thickness were not significantly different (p > 0.05) and within +/- 1.0 mm. Variability between devices was greatest at the abdomen, the site with the greatest thickness. The low-cost, low-resolution A-mode ultrasound provides subcutaneous fat thickness measurements similar to the more expensive, high-resolution B-mode ultrasound. (E-mail: dale.wagner@usu.edu) (C) 2019 World Federation for Ultrasound in Medicine & Biology. All rights reserved.
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