Assessment of Edematous Changes Using Three-Dimensional Body Scanning and Segmental–Bioelectrical Impedance Spectroscopy

Author(s):  
Masashi Taniguchi ◽  
Tetsuya Hirono ◽  
Tsubasa Nakayama ◽  
Kotono Kobayashi ◽  
Noriaki Ichihashi
Sensors ◽  
2019 ◽  
Vol 19 (22) ◽  
pp. 4825 ◽  
Author(s):  
Thomas Cannon ◽  
JungHun Choi

Whole-body bioelectrical impedance analysis for measuring body composition has been well-explored but may not be sensitive enough to changes in the trunk compared to changes in the limbs. Measuring individual body segments can address this issue. A segmental bioelectrical impedance spectroscopy device (SBISD) was designed for body composition measurement and a prototype was implemented. Compensation was performed to adjust the measured values to correct for a phase difference at high frequencies and to counteract the hook effect when measuring the human body. The SBISD was used to measure five subjects and was compared against three existing analyzers. For most segmental measurements, the SBISD was within 10% of the R0 and R∞ values determined with a Bodystat Multiscan 5000 and an Impedimed SFB7. The impedance values from the third reference device, a Seca 514, differed significantly due to its eight-electrode measuring technique, meaning impedance measurements could not be compared directly.


2020 ◽  
Vol 10 (1) ◽  
Author(s):  
Matthias Daniel Zink ◽  
Fabienne König ◽  
Sören Weyer ◽  
Klaus Willmes ◽  
Steffen Leonhardt ◽  
...  

2021 ◽  
Vol 46 ◽  
pp. S603
Author(s):  
N.T. Bellafronte ◽  
L. Vega-Piris ◽  
G.B. Cuadrado ◽  
P.G. Chiarello

2021 ◽  
pp. 1-32
Author(s):  
Katja D Repp ◽  
Dörte Radke ◽  
Till Ittermann ◽  
Martin Albers ◽  
Marcello R P Markus ◽  
...  

Abstract Currently various protocols regarding the site of waist circumference (WC) measurement are in place. This study aimed to analyze the effect of the site of WC measurement on visceral fat (VAT) estimation. WC was obtained at seven anatomical sites in 211 German volunteers (103 males) aged 23-81 using 3-dimensional photonic body scanning (PBS). At one site WC was additionally measured by tape. The quantity of VAT was assessed by magnetic resonance imaging (MRI). Models to estimate VAT based on WC were developed; the precision of the estimation is represented by R2. The influence of the applied method of WC assessment (tape vs. PBS) on the estimations is reported. Results show that the amount of estimated VAT and the precision of VAT estimation were dependent on the site of measurement. VAT was estimated most precisely by WC taken at the level of the lowest rib (WCrib: R²=0.75 females; 0.79 males), the minimum circumference (WCmin: R²=0.75 females; 0.77 males) and at the narrowest part of the torso (WCnar: R²=0.76 females; 0.77 males), and least precisely by WC assessed at the top of iliac crest (WCiliac: R²=0.61 females; 0.60 males). VAT estimates based on WC obtained by PBS were smaller and estimations were slightly less precise compared to estimates based on tape measures. Our results indicate that the method and the site of waist measurement should be considered when estimating VAT based on WC. The implementation of a standardized protocol using either WCrib, WCmin or WCnar could improve the precision of VAT estimation.


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