electrical impedance tomography data
Digital biomedical electrical impedance tomography based on FPGA
... FPGA is one of the most popular electric circuit design methods at present, which is developed on the basis of PAL and GAL, and has the advantages of high perfor- mance, big scale integration, programmable ability. In ...
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Clinical implication of monitoring regional ventilation using electrical impedance tomography
... Electrical impedance tomography (EIT) is a technique performed at the patient ’ s ...for data analysis owing to the limited understanding of the results of EIT ...
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Comparison of total variation algorithms for electrical impedance tomography
... l norm penalty term, which is discontinuous and therefore not differentiable at every point. Consequently, simple gradient-based methods cannot be applied for solving TV regularised problems. A number of algorithms have ...
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Electrical Impedance Tomography of Fast Neural Activity In The Brain
... waveform data which were read by the FPGA and able to generate frequencies from 125 to 825 ...output impedance was over 1 M X ...kHz. Data were sampled at 160 kHz by a National instruments 16 bit ...
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An Optimized Numerical Method for Solving the Two-Dimensional Impedance Equation
... Abstract—We study an optimized numerical method for solving the forward problem of the two-dimensional Impedance Equation. Based upon elements of the modern Pseudoanalytic Function Theory, its performance is ...
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Optimized breath detection algorithm in electrical impedance tomography
... in Electrical Impedance Tomography ...tidal impedance variation images, subsequent data analysis and clinical ...tidal impedance amplitude and 3) minimum tidal breath rate ...
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Measurement of ventilation and cardiac related impedance changes with electrical impedance tomography
... chronous impedance signal is an area of some conten- ...further data supporting this ter- ...The impedance signal generated by this mechanical interaction, however, would have a distribution which ...
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Electrical impedance tomography in acute respiratory distress syndrome
... Frerichs et al. [49] studied the efficacy of the EIT first-pass contrast method in an animal model of nor- mal perfusion, simulating the presence of a pulmon- ary thromboembolism (by occlusion of the pulmonary artery ...
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A novel time-difference electrical impedance tomography algorithm using multi-frequency information
... of data used in one-shot imaging, which is not possible using only measurements at a single frequency ...the data used in an image is limited, 16 × (16 − 4) = 192 (potentials at the injection electrodes are ...
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Discrete mathematical models for electrical impedance tomography
... Electrical Impedance Tomography (EIT) is a non-invasive, portable and low-cost medical imaging ...the data used to infer the interior conductivity distribution of the ...
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Boundary Element formulation for Electrical Impedance Tomography
... The authors would like to thank Patrick Marquis for designing the data acquisition procedure. This work is partially supported by the French Research Ministry ACI Masse de Donn´ ees Obs-Cerv, and the Czech ...
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A Novel Framework for Head Imaging with Electrical Impedance Tomography
... in Electrical Impedance Tomography (EIT) relies on an initial model (the forward model) of the conductivity distribution in the object of interest (here the ...(TD) data, based on the ...
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Cardiac mapping of electrical impedance tomography by means of a wavelet model
... To evaluate its performance, the model was used to ana- lyze EIT images from the animal experiment collected at other values of PEEP. In this analysis, the cardiac regions obtained by the saline injection method were ...
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Design and Development of a Microscopic Electrical Impedance Tomography System
... decade. Electrical Impedance tomography (EIT) is seen to be playing a big role to improve and establish a modern approach of supervision and imagining physiological state of materials that depends on ...
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Electrical impedance tomography as a tool for phenotyping plant roots
... Control (healthy) and P. brassicae-infected oilseed rape plants (variety Temple) were grown in horticultural com- post in EIT chambers. he chambers were illed with compost, initially using a complex, and time-consuming, ...
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Recent progress on Frequency Difference Electrical Impedance Tomography
... Electrical Impedance Tomography(EIT) is a non-invasive imaging technique which aims to provide the cross- sectional distribution of electrical impedance inside the human ...voltage ...
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Adaptive mesh refinement techniques for electrical impedance tomography
... Electrical impedance tomography (EIT) can provide images with well defined characteristics only when the full nonlinear reconstruction process is constrained by a property of the image such as its ...
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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 advantage of ...
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Noninvasive Stroke Volume Monitoring by Electrical Impedance Tomography
... With the niPCA technique the arterial pressure waveform is estimated fully noninvasively. The subsequent calculation of CO and other hemodynamic parameters is similar to its in- vasive equivalent, the aforementioned PCA ...
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Electrical Impedance Tomography of human brain function
... Realistic anatomical a p rio ri information was included in the inverse problem by Vauhkonen (1997) and Vauhkonen et al. (1997), in their basis constraint method. A number o f example conductivity distributions (the ...
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