نتایج جستجو برای: bio impedance analysis

تعداد نتایج: 2895096  

Journal: :journal of research in medical sciences 0
neda alijanian afsoon emami naini shahrzad shahidi lida liaghat rahil r. samani

normal 0 false false false en-us x-none ar-sa background: dry weight (dw) is an important concept related to patients undergoing hemodialysis. conventional method seems to be time consuming and operator dependent. bio impedance analysis (bia) is a new and simple method reported to be an accurate way for estimating dw. in this study, we aimed to compare the conventional estimation of dw with mea...

Journal: :journal of medical signals and sensors 0
houman mirzaalian dastjerdi ramin soltanzadeh hossein rabbani

studies show that any complications including hemorrhage, lack of blood supply, lack of oxygen supply, and death of cells in a tissue, will have a clear effect on electrical properties of that tissue. thus, by measuring impedance of a set of tissues, potential problems of the damaged tissue may be found. since electrical impedance is closely related to the measuring frequency, obviously, every ...

Journal: :Nutricion hospitalaria 2014
Mariana Orta Duarte Yunue Flores Ruelas Fátima López-Alcaraz Mario del Toro-Equihua Carmen Alicia Sánchez-Ramírez

INTRODUCTION Obesity is considered one of the most serious public health problems of the 21st century in children and adolescents. The percentile or Z-score of the body mass index is widely used in children and adolescents to define and assess overweight and obesity, but it does not determine the percentage of total body fat. Other anthropometric measurements that determine total body fat are s...

Journal: :nephro-urology monthly 0
mojgan jalalzadeh department of nephrology, loghman- hakim hospital, shahid beheshti university of medical sciences, tehran, iran; department of nephrology, loghman- hakim hospital, shahid beheshti university of medical sciences, tehran, iran. tel: +98-2151025000 mohammadreza hajiesmaeili department of anesthesiology and critical care medicine, anesthesiology research center, center, loghman- hakim hospital, shahid beheshti university of medical sciences, tehran, iran

there is a new technique to measure total body water named bio-electrical impedance analysis (bia), used in healthy subjects and patients. bia determines the total body water (tbw), fat-free mass (ffm), body cell mass (bcm), extra cellular water (ecw), and intra cellular water (icw) in subjects without significant fluid and electrolyte imbalance. there are several methods such as segmental bia,...

2011
Byung Woo Lee Chungkeun Lee Jinkwon Kim Myoungho Lee

BACKGROUND There have been many studies that utilize the bio-impedance measurement method to analyze the movements of the upper and lower limbs. A fixed electrical current flows into the limbs through four standard disposable electrodes in this method. The current flows in the muscles and blood vessels, which have relatively low resistivity levels in the human body. This method is used to measu...

2017
Prerna Mittal Padma Batra

© 2016, IRJET | Impact Factor value: 4.45 | ISO 9001:2008 Certified Journal | Page 1049 PERFORMANCE EVALUATION OF DIFFERENTIAL BIO-POTENTIAL AMPLIFIER Prerna Mittal1, Padma Batra2 1M-Tech Degree in Electronics and Communication, Krishna Institute of Engineering and Technology, Ghaziabad, UPTU, India 2 Associate Professor, EC Department, Krishna Institute of Engineering and Technology, Ghaziabad...

2010
Ashish V. Jagtiani Jiang Zhe

Recent advances in microfluidics and microfabrication techniques have led to a variety of portable and inexpensive lab-on-a-chip devices to make quantitative assays of microscale and nanoscale bioparticles. Among them, electrical impedance flow cytometers have become an indispensable tool in clinical and research laboratories for analysis of micro/nano bio-objects. Because of their simplicity a...

2014
Shreeyog Nimkar D. K. Kamat P. M. Patil

The field programmable gate array is the fastest growing technology. The bio-impedance measurement system is implemented in reconfigurable field programmable gate array hardware. The design of bio-impedance measurement system using Xilinx system generator is more convenient and cheaper for revising, if the Bio-impedance measurement system requires parameters changes in practical use, since no n...

2010
Qinghai Shi Andreas Heinig Olfa Kanoun

Electrical impedance of biological matter is known as electrical bioimpedance or simply as bio-impedance. Bio-impedance devices are of great value for monitoring the pathological and physiological status of biological tissues in clinical and home environments. The technological progress in instrumentation has significantly contributed to the progress that has been observed during the last past ...

Journal: :IEICE Transactions 2005
Chul-Gyu Song Deok Won Kim

The purpose of this study is to provide a new approach for detection using bio-impedance. This impedance is measured by the four-electrode method. As the impedance changes resulting from ankle, knee, and hip movements depended heavily on electrode placement, we determined the optimal electrode configurations for those movements by searching for high correlation coefficients, large impedance cha...

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