electrical impedance tomography use
An Influence of the Noise on the Imaging Algorithm in the Electrical Impedance Tomography
... based on the Particle Swarm Optimization (PSO) [5-7], Genetic algorithm (GA) [8] etc. In recent years, some synthetic algorithms have been proposed, for example, Homotopy-Modified Newton-Raphson algorithm (H- MNR) [1], ...
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Electrical impedance tomography in acute respiratory distress syndrome
... In another context, Bickenbach et al. [59] evaluated the utility of the GI index to predict failure of a spontan- eous breathing trial (SBT). They evaluated 31 tracheos- tomized patients with difficult weaning connected ...
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Modern Trends in Development of Electrical Impedance Tomography in Medicine
... Based on the review performed, and on the analysis of the current state of the problem, it has been revealed that today there is no common effective approach in the theory of EIT. There is a need to develop new ...
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A fast parallel solver for the forward problem in electrical impedance tomography
... can use all Krylov subspace solvers available in PETSc, which are conju- gate gradients (CG), generalized minimal residual (GMRES), and two CG algorithms for nonsymmetric problems BiCG and ...
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Clinical implication of monitoring regional ventilation using electrical impedance tomography
... possible use of the GI index for estimating lung recruitability in normal or pathologic lungs, and ventilatory settings aiming at the lowest value may be reasonable to provide better ventila- tory ...
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A Precision Transconductance for Electrical Impedance Tomography Using CMOS Technology
... ELECTRICAL IMPEDANCE TOMOGRAPHY (EIT) is a new medical imaging ...of impedance measurement may be reconstructed into tomographical image ...system use multifrequency to get better ...
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Electrical impedance tomography as a tool for phenotyping plant roots
... Electrical impedance tomography (EIT) shares the same concepts as ...the use of spectral EIT in com- bination with induced polarisation techniques are capa- ble of discerning the presence of ...
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Measurement of ventilation and cardiac related impedance changes with electrical impedance tomography
... demonstrated (particularly in lateral positions), similar to those found using other measurement techniques with greater spatial resolution such as electron-beam CT [17] or radio-labelled tracers [18]. It is acknowl- ...
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Recent progress on Frequency Difference Electrical Impedance Tomography
... cannot use the tdEIT method since a reference measurement of the voltage data is not available, and any method using the computed reference voltage with a forward model can not be reliable due to the modeling ...
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Optimization of the centre ground method of Electrical Impedance Tomography System
... Different EIT systems are based on different current injection patterns like the adjacent method, the opposite method, the cross method and the trigonometric method. All these methods use differential voltage ...
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Electrical impedance tomography imaging using a priori ultrasound data
... Shape identification is an inverse boundary value prob- lem; therefore it is not efficient to use the common image reconstruction methods. Shape reconstruction in 3D EIT is presented in this paper. The main ...
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DESIGN AND IMPLEMENTATION OF PRECISE HARDWARE FOR ELECTRICAL IMPEDANCE TOMOGRAPHY (EIT)
... Electrical Impedance Tomography (EIT) is a relatively new imaging ...of electrical conductivity (or impedance) distribution of the internal part of a typical conductive subject can be ...
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Electrical impedance tomography system: an open access circuit design
... to use, fast analogue to digital converters, a separate demod- ulator for each channel and/or a decrease in multiplexing time by means of faster digital ...
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A REVIEW ON BREAST ELECTRICAL IMPEDANCE TOMOGRAPHY CLINICAL ACCURACY
... the use of magnetic resonance mammogram (MRM) to exclude signals from areas not corresponding to mammography to detect focal malignancies, thereby confirming that the spots were indeed a false ...
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Three Dimensional Electrical Impedance Tomography
... Unless indicated otherwise, fulltext items are protected by copyright with all rights reserved. The copyright exception in section 29 of the Copyright, Designs and Patents Act 1988 allows the making of a single copy ...
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Electrical impedance tomography compared to positron emission tomography for the measurement of regional lung ventilation: an experimental study
... One of the strengths of this study is that EIT was tested during conditions in which its validity was really challenged. As stated above, despite PEEP and V T variation over a wide range of val- ues, EIT measurements ...
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Electrical Impedance Based Spectroscopy and Tomography Techniques for Obesity and Heart Diseases
... Numerous bio-tissues that are of great clinical interest possess a tubular geometry, such as blood vessel, gastrointestinal tract, etc. The existing clinical tools for such tubular objects are mostly catheter-based ...
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Electrical Impedance Tomography using EIDORS in a Closed Phantom
... Thus Electrical Impedance Tomography is used to tackle challenging problem of detection of abnormalities in human tissue as well as the inhomogeneities in ...high electrical conductivity as ...
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Design and Development of a Microscopic Electrical Impedance Tomography System
... For example, red colour in the image implies the high impedance of the object position. Thus, it indicates that different position of object can be recognized and detected by using this approach. The colour ...
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Development of an agilent voltage source for electrical impedance tomography applications
... bulky and at the same time is expensive while the latter can be designed out of inexpensive discrete components using either analog components or digital ICs. In either way, the desired features of any function generator ...
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