Comparison of Abdominal Visceral Adipose Tissue Area Measured by Computed Tomography with That Estimated by Bioelectrical Impedance Analysis Method in Korean Subjects

Abstract

We evaluated the concordance between visceral fat area (VFA) estimated by bioelectrical impedance analysis (BIA) or computed tomography (CT) in Korean subjects with a wide range in age and body mass index (BMI). In 1006 individuals (mean age 55.2 ± 11.8 (19–87) years, mean BMI 26.0 ± 3.5 (17–46) kg/m2, 48.9% men), VFA quantified by CT was compared with VFA using multifrequency BIA machines within 15 days. Concordance rates were compared by age or BMI using correlation analysis, Bland-Altman plots, and intraclass correlation coefficient (ICC). Using BIA data, we established a regression formula to reflect CT-VFA. The mean VFAs by CT and BIA were 131.9 ± 57.3 cm2 and 110.5 ± 33.9 cm2, respectively (r = 0.605, p < 0.001). The mean difference was 21.4 ± 45.6 cm2, tending to increase with BMI. In women with BMI <25 kg/m2 or age <50 years, the VFAs by BIA were similar to those by CT (ICC = 0.496 in BMI <25 kg/m2 and ICC = 0.638 in age <50 years). However, the difference was greater in men with BMI ≥25 kg/m2 or age ≥50 years. Applying our formula, the difference between estimations decreased to 0.2 ± 38.2cm2. VFA estimated by BIA correlated well with that by CT, but a more accurate formula is needed to match CT data, particularly in older men or subjects with a high BMI.

Salivary adiponectin concentration in healthy adult males in relation to anthropometric measures and fat distribution

“…Body weight, BMI, whole fat %, visceral fat level, and whole body subcutaneous fat were measured by Omron Karada Scan HBF-362 Bioelectrical impedance. Th is bioimpedance method of measuring fats has been proven to correlate well with body fat analyzed by Dual-energy X-ray absorptiometry (DEXA) (Fakhrawi et al 2009;Sluyter et al 2010) and even by CT (Lee et al 2015). Each subject was asked to stand barefooted and upright in the middle Brought to you by | MIT Libraries Authenticated Download Date | 5/12/18 1:35 AM of the sensor platform and hold the fat analyzer with his extended arms.…”

“…Accurate measurement of the compartmental fat distribution using imaging techniques, as magnetic resonance imaging (MRI) and computed tomography (CT) (Lee et al 2015), are relatively expensive and complex. Th e adiponectin level assay which uses standardized method is also expensive, especially in the clinical risk assessments among large groups of population and large-scale studies.…”

Change in body composition in patients with achalasia before and after peroral endoscopic myotomy

“…InBody770 (TAKUMI Co., Aichi, Japan) was used to estimate muscle mass, SMI, and body water content. 19,20 InBody770 uses multiple currents at varying frequencies (1 kHz to 1 MHz), which can analyze the intracellular and extracellular water content separately, providing the most precise body water content analysis. Direct segmental measurements can analyze any body type accurately because each segment of the body is assessed separately at multiple frequencies.…”

Comparison of pancreatic volume and fat amount linked with glucose homeostasis between healthy Caucasians and Koreans

“…Inclusion criteria for white participants were: non-Hispanic white ethnicity; age [25][26][27][28][29][30][31][32][33][34][35] We recruited white participants first, followed by Korean participants to match age and BMI. We screened 56 white people.…”

“…Images of amounts of subcutaneous adipose tissue (SAT) and visceral adipose tissue (VAT) at the umbilical level were taken from MDCT scans as described previously. 27 A cross-sectional abdominal contour was estimated by outlining the skin manually with a graph pen through the muscular structures and lumbar spines. The area between −190 HU and −30 HU pixels was calculated automatically using dedicated software (Rapidia; 3DMED, Seoul, Korea).…”