Boots – shoes – and leggings
Patent
1991-07-09
1995-02-14
Huntley, David M.
Boots, shoes, and leggings
128734, G06F 1542, A61B 505
Patent
active
053901100
ABSTRACT:
A method for the impedance imaging of a three-dimensional body utilizes electrtodes on the outer surface of the body which receive a set of current patterns. The resulting voltage patterns are measured at the outer boundary of the body. Synthesized resulting patterns are then calculated for inner boundaries of the body, each at a selected incremental distance inwardly of the outer boundary. The synthesis step is repeated for successive inner boundaries until the center of the body is reached. The measured and synthesized patterns are utilized to calculate or otherwise find various medium properties in the body, such as the electric conductivity and electric permittivity for the body. These impedance characteristics based on the measured and synthesized patterns are used to produce an image of the body.
REFERENCES:
patent: 4291708 (1981-09-01), Frei et al.
patent: 4486835 (1984-12-01), Bai et al.
patent: 4539640 (1985-09-01), Fry et al.
patent: 4794934 (1989-01-01), Motoyama et al.
patent: 4920490 (1990-04-01), Isaacson
IEEE Transactions on Geoscience and Remote Sensing, vol. GE-25, No. 5, Sep. 1987, Yagle, "A Layer Stripping Fast Algorithm for the Two-Dimensional Direct Current Inverse Resistivity Problem", pp. 558-563.
Inverse Problems, vol. 4, 1988, Cheney et al., "Three dimensional inverse scattering; layer-stripping formulae and ill-posedness results", pp. 625-642.
Inverse Problems, vol. 4, 1988, Cheney et al., "Three-dimensional inverse scattering for the wave equation; weak scattering approximations with error estimates", pp. 435-447.
IEEE Proceedings, vol. 132, No. 7, Nov. 1985, Seager et al., "Full-wave computed tomography Part 4: Low-frequency electric current CT", pp. 455-466.
IEEE Proceedings, vol. 131, No. 8, Nov. 1984, Seager et al., "Full-wave computed tomography Part 2: Resolution limits", pp. 16-22.
Lytle et al., "An Impedance Camera: A System for Determining the Spatial Variation of Electrical Conductivity", Lawrence Livermore Report UCR-L-S2413, 1978.
IEEE Transactions on Biomedical Engineering, vol. BME-25, No. 3, May 1978, Henderson et al., "An Impedance Camera for Spatially Specific Measurements of the Thorax", pp. 250-255.
IEEE Transaction on Medical Imaging, vol. MI-5, No. 2, Jun. 1986, Isaacson, "Distinguishability of Conductivities by Electric Current Computed Tomography", pp. 91-95.
IEEE Transactions on Biomedical Engineering, vol. BME-32, No. 3, Mar. 1985, Murai et al., "Electrical Impedance Computed Tomography Based on a Finite Element Model", pp. 177-184.
IEEE Transactions on Biomedical Engineering, vol. BME-27, No. 7, Jul. 1980, Bates et al., "A Limitation on Systems for Imaging Electrical Conductivity Distributions", pp. 418-420.
IEEE Transactions on Nuclear Science, vol. NS-26, No. 2, Apr. 1979, Price, "Electrical Impedance Computed Tomography (ICT): A New CT Imaging Technique", pp. 2736-2739.
SPIE, vol. 206, 1979, Price, "Imaging of the electrical conductivity and premittivity inside a patient: a new computed tomography (CT) technique", pp. 115-119.
Cheney Margaret
Isaacson David
Isaacson Eli L.
Somersalo Erkki
Huntley David M.
Rensselaer Polytechnic Institute
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