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2021
Thoracic bioimpedance estimates cardiac output based on the principle that each heartbeat induces a decrease in the electrical impedance of an electrical current applied through the thorax and that this decrease is proportional to stroke volume. It is a completely noninvasive and easy-to-use technique.
Arthur Pavot +2 more
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Thoracic bioimpedance estimates cardiac output based on the principle that each heartbeat induces a decrease in the electrical impedance of an electrical current applied through the thorax and that this decrease is proportional to stroke volume. It is a completely noninvasive and easy-to-use technique.
Arthur Pavot +2 more
openaire +1 more source
Bioimpedance in the Pacemaker Clinic
AACN Clinical Issues: Advanced Practice in Acute and Critical Care, 1999Thoracic electrical bioimpedance (TEB) provides a rapid, accurate, cost-effective method of optimizing the atrioventricular delay in dual-chamber pacemakers. In addition to measurements of cardiac output, TEB provides other hemodynamic indices such as systolic time interval, left cardiac work index, and end diastolic index.
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The Historical Evolution of Bioimpedance
AACN Clinical Issues: Advanced Practice in Acute and Critical Care, 1999Thoracic electrical bioimpedance is a technology that converts changes in thoracic impedance to changes in volume over time. In this manner, it is used to track volumetric changes such as those occurring during the cardiac cycle. These measurements, which are gathered noninvasively and continuously, have become more sophisticated and more accurate with
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Sources of error in bioimpedance spectroscopy
Physiological Measurement, 1998Two different makes of bioimpedance spectrometer (UniQuest-SEAC SFB-3 and Xitron 4000B) were used for a series of measurements on volunteers and patients in intensive care. Although each machine was accurate over the frequency range 5 to 500 kHz when bench tested on model resistor-capacitor circuits, significant differences in their recorded impedance ...
Bolton, MP +6 more
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Nutrition in Clinical Practice, 2015
The loss of muscle mass is a defining characteristic of malnutrition, and there is ongoing interest in the assessment of lean tissue at the bedside. Globally, bioimpedance techniques have been widely appreciated for their noninvasiveness, safety, ease of use, portability, and relatively low cost compared with other clinically available methods. In this
Urvashi, Mulasi +3 more
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The loss of muscle mass is a defining characteristic of malnutrition, and there is ongoing interest in the assessment of lean tissue at the bedside. Globally, bioimpedance techniques have been widely appreciated for their noninvasiveness, safety, ease of use, portability, and relatively low cost compared with other clinically available methods. In this
Urvashi, Mulasi +3 more
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Bioimpedance Spectroscopy in Healthy Children
Journal of Clinical Engineering, 2016Prediction equations compromise the usefulness of bioimpedance spectroscopy (BIS) in children. This preliminary study explored the possibility of establishing reference curves in children, based on BIS-modeled data and/or resistance index (RI) values. In addition, the precision of repeated measurements was calculated.
Brantlov, Steven +4 more
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Bioimpedance and the Duration of the Hemodialysis Session
ASAIO Journal, 2011Bioelectrical impedance analysis (BIA) is composed of resistance (R) and reactance (Xc). The aim of this study was to investigate whether BIA may be influenced by the duration of hemodialysis (HD) sessions. Eleven uremic patients underwent one 4-hour and one 8-hour bicarbonate HD session.
Carlo, Basile +7 more
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Variable frequency bioimpedance instrumentation
The 26th Annual International Conference of the IEEE Engineering in Medicine and Biology Society, 2005The design of instrumentation used to measure the bioimpedance of skin or tissue is presented. An inexpensive, component level approach, appropriate for use by researchers rather that commercial applications, is emphasized. The design and implementation process is thoroughly explained and design tradeoffs are discussed with relation to various ...
D, Tsunami +4 more
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Bioimpedance: Is It a Predictor of True Water Volume?
Annals of the New York Academy of Sciences, 1999Abstract: Bioelectrical impedance analysis (BIA) has been reported to be insensitive to changes in water volumes in individual subjects. This study was designed to investigate the effect on the intra‐ and extracellular resistances (Ri and Re) of the segments of subjects for whom body water was changed without significant change to the total amount of ...
Thomas, BJ +3 more
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Bioimpedance Measurement of Extracellular Water
Journal of Applied Physiology, 1999To the Editor : The paper by Matthie and others ([1][1]) purports to demonstrate the superiority of the Xitron multifrequency bioimpedance analyzer over single-frequency bioimpedance for measurement of extracellular water (ECW).
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