Electrical impedance tomography using induced currents.

1993
Gençer, Nevzat Güneri
Show full item record
209
views
0
downloads
Tomography.
https://hdl.handle.net/11511/872
Graduate School of Natural and Applied Sciences, Thesis

Suggestions

Studies of waterflooding in low-permeable chalk by use of X-ray CT scanning [J. Pet. Sci. Eng. 32 (2001) 1-10]
Akın, Serhat (2002-10-01)
ELECTRICAL-IMPEDANCE TOMOGRAPHY USING INDUCED CURRENTS
Gençer, Nevzat Güneri; Kuzuoğlu, Mustafa (1994-06-01)
The mathematical basis of a new imaging modality, Induced Current Electrical Impedance Tomography (EIT), is investigated. The ultimate aim of this technique is the reconstruction of conductivity distribution of the human body, from voltage measurements made between electrodes placed on the surface, when currents are induced inside the body by applied time varying magnetic fields. In this study the two-dimensional problem is analyzed. A specific 9-coil system for generating nine different exciting magnetic f...
Tissue resistivity estimation in the presence of positional and geometrical uncertainties
Baysal, U; Eyüboğlu, Behçet Murat (2000-08-01)
Geometrical uncertainties (organ boundary variation and electrode position uncertainties) are the biggest sources of error in estimating electrical resistivity of tissues from body surface measurements. In this study, in order to decrease estimation errors, the statistically constrained minimum mean squared error estimation algorithm (MiMSEE) is constrained with a priori knowledge of the geometrical uncertainties in addition to the constraints based on geometry, resistivity range, linearization and instrume...
Theoretical limits to sensitivity and resolution in magneto-acousto-electrical tomography
GHALICHI, Elyar; Gençer, Nevzat Güneri (2017-10-21)
In this study, the performance of magneto-acousto-electrical tomography (MAET) is investigated quantitatively by considering interrelations between its sensitivity, resolution and conductivity contrast. An analytical solution for the forward problem of MAET is derived for two-dimensional (2D) concentric bodies by the separation of variables method. The electric potential and the acoustic pressure are separated into their angular and radial components. The series coefficients for these solutions are obtained...
Crisis Management and Terrorism
Sutalan, Zeynep (2011-05-27)
Today it seems that we are living in an age of crises rather than war. Changes in the security paradigm with the end of Cold War, as well as globalization, have diminished the likelihood of conventional wars. With the growing unpredictability and complexity of security challenges, 'crisis' has become an umbrella concept that is used for any significant event, be it national or international - be it economic, political, military, social or natural, with potentially severe consequences that require prompt act...
Citation Formats
N. G. Gençer, “Electrical impedance tomography using induced currents.,” Ph.D. - Doctoral Program, Middle East Technical University, 1993.
METU IIS - Integrated Information Service open@metu.edu.tr