Current patterns for impedance tomography

Details Current patterns for impedance tomography Current patterns for impedance tomography

1990-10-02

1993-12-21

Weinhardt, Robert A.

Boots, shoes, and leggings

128734, G06F 1542

Patent

active

052726240

ABSTRACT:
In an electrical impedance imaging system that is capable of forming images based on internal resistivity of a body, an array of electrodes is applied to the surface of the body and energized by a plurality of current generators. Each current generator is controlled to produce current patterns containing single fixed magnitudes. The current generators are also controlled to apply current to the respective electrode only when the current generator is at peak current value to minimize transient conditions and maximize the rate at which images can be produced.

REFERENCES:
patent: 4486835 (1984-12-01), Bai et al.
patent: 4539640 (1985-09-01), Fry et al.
patent: 4649932 (1987-03-01), Smith
patent: 4920490 (1990-04-01), Isaacson
"An Electric Current Tomograph", Newell et al., IEEE Trans of Biomed. E., vol. 35, No. 10, Oct. 1988.

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