The sensitivity in Electrical Impedance Tomography
Journal Title: Вісник НТУУ КПІ. Серія Радіотехніка, Радіоапаратобудування - Year 2013, Vol 0, Issue 55
Abstract
Introduction. The concept of sensitivity in Electrical Impedance Tomography is introduced (first – fourth type). The experimental researches measuring the voltages on the phantom outline are conducted on the created layout (for uniform cylindrical vessel with brine and placed inhomogeneities in a vessel). The main part. The inverse problems are solved for simulated on PC phantom (the third type sensitivity) and from measured results (the fourth type sensitivity) by conductivity zones method using regularization by A. Tykhonov. The sensitivity to conductivity increasing of elements inside the phantom is significantly less than the sensitivity to resistance increasing. The results of measured voltages processing and the results of projection reconstruction (obtained from mathematical model and from measured results) are described. Conclusions. The satisfactory agreements of reconstruction results between themselves and with mathematical and measured phantoms are shown.
Authors and Affiliations
A. Rybin, E. Gaydayenko, I. Sushko
Keywords
Related Articles
- EP ID EP309093
- DOI 10.20535/RADAP.2013.55.107-117
- Views 103
- Downloads 0
Modeling of high-speed electronic devices
Introduction. The theme of this publication is the modeling of electronic tools that operate in the frequency range from zero to terahertz and higher. Application of new concepts and technologies, including biotechnology...
Numeral-analytical design of noise generator of millimeter range on corps IMPATT diodes
The numeral-analytical model of noise generator of millimeter range on IMPATT diodes is considered. It is shown; that it is possible to calculate parameters of generator, applying numeral approach at the design of passiv...
Wavelet analysis of the electrocardioignals for detection of the posttraumatic myocardial dystrophy features
Introduction. The features of the traumatic disease's impact on the cardiovascular system are reviewed. Numerical experiments on electrocardiosignals of the soldiers injuried by mine explosion were held. The nature of th...
Mathematical modeling of the electric field in dielectric structures.
Were obtained suitable for the calculation formulas, which determine the distribution of the electric field generated by the accumulated space charge in dielectric films with different ways of metallization surface.
Concerning to coherency of electromagnetic waves, light in particular (part 3)
Quantum-packet model of light beam was proposed. This model organically reconciles wave-corpuscle properties of light beam and explains nature of it coherency and physics sense of it parameters.