Current patterns for electrical impedance tomography
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United States of America Patent
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Jan 10, 1995
Grant Date -
N/A
app pub date -
Jul 23, 1991
filing date -
Jul 23, 1991
priority date (Note) -
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Abstract
A method in electrical impedance tomography uses an adaptive repeated series of calculations and measurements to determine the best current pattern for a body having an initially unknown internal conductivity, for producing the best electrical impedance image for the body. Initially, an arbitrary current pattern and conductivity is utilized to generate a voltage pattern which is measured and compared with the theoretical voltage pattern based on the arbitrary conductivity and current patterns. When both the current pattern and the conductivity yielded by the process closely match values derived by measurements, the voltage pattern is used to produce the image.
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